From 463b072b1290a8cb75bc1d7b6688fa76bbfdb14f Mon Sep 17 00:00:00 2001 From: Amber Brown Date: Thu, 4 Jul 2019 00:07:04 +1000 Subject: Move logging utilities out of the side drawer of util/ and into logging/ (#5606) --- synapse/app/_base.py | 2 +- synapse/app/appservice.py | 2 +- synapse/app/client_reader.py | 2 +- synapse/app/event_creator.py | 2 +- synapse/app/federation_reader.py | 2 +- synapse/app/federation_sender.py | 2 +- synapse/app/frontend_proxy.py | 2 +- synapse/app/homeserver.py | 2 +- synapse/app/media_repository.py | 2 +- synapse/app/pusher.py | 2 +- synapse/app/synchrotron.py | 2 +- synapse/app/user_dir.py | 2 +- synapse/appservice/scheduler.py | 2 +- synapse/config/logger.py | 4 +- synapse/crypto/keyring.py | 15 +- synapse/events/snapshot.py | 2 +- synapse/federation/federation_base.py | 24 +- synapse/federation/federation_client.py | 8 +- synapse/federation/federation_server.py | 4 +- synapse/federation/persistence.py | 2 +- synapse/federation/sender/__init__.py | 12 +- synapse/federation/transport/client.py | 2 +- synapse/federation/transport/server.py | 2 +- synapse/groups/attestations.py | 2 +- synapse/handlers/account_validity.py | 2 +- synapse/handlers/appservice.py | 2 +- synapse/handlers/auth.py | 6 +- synapse/handlers/e2e_keys.py | 2 +- synapse/handlers/events.py | 2 +- synapse/handlers/federation.py | 43 +- synapse/handlers/initial_sync.py | 2 +- synapse/handlers/message.py | 2 +- synapse/handlers/pagination.py | 2 +- synapse/handlers/presence.py | 4 +- synapse/handlers/sync.py | 2 +- synapse/handlers/typing.py | 2 +- synapse/http/client.py | 2 +- synapse/http/federation/matrix_federation_agent.py | 2 +- synapse/http/federation/srv_resolver.py | 2 +- synapse/http/matrixfederationclient.py | 2 +- synapse/http/request_metrics.py | 2 +- synapse/http/server.py | 2 +- synapse/http/site.py | 2 +- synapse/logging/__init__.py | 0 synapse/logging/context.py | 693 +++++++++++++++++++++ synapse/logging/formatter.py | 53 ++ synapse/logging/utils.py | 194 ++++++ synapse/metrics/background_process_metrics.py | 2 +- synapse/notifier.py | 4 +- synapse/push/mailer.py | 2 +- synapse/replication/tcp/protocol.py | 2 +- synapse/rest/client/transactions.py | 2 +- synapse/rest/media/v1/_base.py | 6 +- synapse/rest/media/v1/media_repository.py | 12 +- synapse/rest/media/v1/media_storage.py | 5 +- synapse/rest/media/v1/preview_url_resource.py | 2 +- synapse/rest/media/v1/storage_provider.py | 5 +- synapse/state/__init__.py | 2 +- synapse/storage/_base.py | 2 +- synapse/storage/events.py | 4 +- synapse/storage/events_worker.py | 6 +- synapse/storage/stream.py | 2 +- synapse/util/__init__.py | 12 +- synapse/util/async_helpers.py | 9 +- synapse/util/caches/descriptors.py | 11 +- synapse/util/caches/response_cache.py | 4 +- synapse/util/distributor.py | 2 +- synapse/util/file_consumer.py | 2 +- synapse/util/logcontext.py | 693 --------------------- synapse/util/logformatter.py | 53 -- synapse/util/logutils.py | 194 ------ synapse/util/metrics.py | 2 +- synapse/util/ratelimitutils.py | 2 +- synapse/util/retryutils.py | 4 +- 74 files changed, 1093 insertions(+), 1081 deletions(-) create mode 100644 synapse/logging/__init__.py create mode 100644 synapse/logging/context.py create mode 100644 synapse/logging/formatter.py create mode 100644 synapse/logging/utils.py delete mode 100644 synapse/util/logcontext.py delete mode 100644 synapse/util/logformatter.py delete mode 100644 synapse/util/logutils.py (limited to 'synapse') diff --git a/synapse/app/_base.py b/synapse/app/_base.py index 9b5c30f506..1ebb7ae539 100644 --- a/synapse/app/_base.py +++ b/synapse/app/_base.py @@ -27,7 +27,7 @@ from twisted.protocols.tls import TLSMemoryBIOFactory import synapse from synapse.app import check_bind_error from synapse.crypto import context_factory -from synapse.util import PreserveLoggingContext +from synapse.logging.context import PreserveLoggingContext from synapse.util.async_helpers import Linearizer from synapse.util.rlimit import change_resource_limit from synapse.util.versionstring import get_version_string diff --git a/synapse/app/appservice.py b/synapse/app/appservice.py index 9120bdb143..be44249ed6 100644 --- a/synapse/app/appservice.py +++ b/synapse/app/appservice.py @@ -26,6 +26,7 @@ from synapse.config._base import ConfigError from synapse.config.homeserver import HomeServerConfig from synapse.config.logger import setup_logging from synapse.http.site import SynapseSite +from synapse.logging.context import LoggingContext, run_in_background from synapse.metrics import RegistryProxy from synapse.metrics.resource import METRICS_PREFIX, MetricsResource from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore @@ -36,7 +37,6 @@ from synapse.replication.tcp.client import ReplicationClientHandler from synapse.server import HomeServer from synapse.storage.engines import create_engine from synapse.util.httpresourcetree import create_resource_tree -from synapse.util.logcontext import LoggingContext, run_in_background from synapse.util.manhole import manhole from synapse.util.versionstring import get_version_string diff --git a/synapse/app/client_reader.py b/synapse/app/client_reader.py index 90bc79cdda..ff11beca82 100644 --- a/synapse/app/client_reader.py +++ b/synapse/app/client_reader.py @@ -27,6 +27,7 @@ from synapse.config.homeserver import HomeServerConfig from synapse.config.logger import setup_logging from synapse.http.server import JsonResource from synapse.http.site import SynapseSite +from synapse.logging.context import LoggingContext from synapse.metrics import RegistryProxy from synapse.metrics.resource import METRICS_PREFIX, MetricsResource from synapse.replication.slave.storage._base import BaseSlavedStore @@ -64,7 +65,6 @@ from synapse.rest.client.versions import VersionsRestServlet from synapse.server import HomeServer from synapse.storage.engines import create_engine from synapse.util.httpresourcetree import create_resource_tree -from synapse.util.logcontext import LoggingContext from synapse.util.manhole import manhole from synapse.util.versionstring import get_version_string diff --git a/synapse/app/event_creator.py b/synapse/app/event_creator.py index ff522e4499..cacad25eac 100644 --- a/synapse/app/event_creator.py +++ b/synapse/app/event_creator.py @@ -27,6 +27,7 @@ from synapse.config.homeserver import HomeServerConfig from synapse.config.logger import setup_logging from synapse.http.server import JsonResource from synapse.http.site import SynapseSite +from synapse.logging.context import LoggingContext from synapse.metrics import RegistryProxy from synapse.metrics.resource import METRICS_PREFIX, MetricsResource from synapse.replication.slave.storage._base import BaseSlavedStore @@ -59,7 +60,6 @@ from synapse.server import HomeServer from synapse.storage.engines import create_engine from synapse.storage.user_directory import UserDirectoryStore from synapse.util.httpresourcetree import create_resource_tree -from synapse.util.logcontext import LoggingContext from synapse.util.manhole import manhole from synapse.util.versionstring import get_version_string diff --git a/synapse/app/federation_reader.py b/synapse/app/federation_reader.py index 9421420930..11e80dbae0 100644 --- a/synapse/app/federation_reader.py +++ b/synapse/app/federation_reader.py @@ -28,6 +28,7 @@ from synapse.config.homeserver import HomeServerConfig from synapse.config.logger import setup_logging from synapse.federation.transport.server import TransportLayerServer from synapse.http.site import SynapseSite +from synapse.logging.context import LoggingContext from synapse.metrics import RegistryProxy from synapse.metrics.resource import METRICS_PREFIX, MetricsResource from synapse.replication.slave.storage._base import BaseSlavedStore @@ -48,7 +49,6 @@ from synapse.rest.key.v2 import KeyApiV2Resource from synapse.server import HomeServer from synapse.storage.engines import create_engine from synapse.util.httpresourcetree import create_resource_tree -from synapse.util.logcontext import LoggingContext from synapse.util.manhole import manhole from synapse.util.versionstring import get_version_string diff --git a/synapse/app/federation_sender.py b/synapse/app/federation_sender.py index 969be58d0b..97da7bdcbf 100644 --- a/synapse/app/federation_sender.py +++ b/synapse/app/federation_sender.py @@ -27,6 +27,7 @@ from synapse.config.homeserver import HomeServerConfig from synapse.config.logger import setup_logging from synapse.federation import send_queue from synapse.http.site import SynapseSite +from synapse.logging.context import LoggingContext, run_in_background from synapse.metrics import RegistryProxy from synapse.metrics.background_process_metrics import run_as_background_process from synapse.metrics.resource import METRICS_PREFIX, MetricsResource @@ -44,7 +45,6 @@ from synapse.storage.engines import create_engine from synapse.types import ReadReceipt from synapse.util.async_helpers import Linearizer from synapse.util.httpresourcetree import create_resource_tree -from synapse.util.logcontext import LoggingContext, run_in_background from synapse.util.manhole import manhole from synapse.util.versionstring import get_version_string diff --git a/synapse/app/frontend_proxy.py b/synapse/app/frontend_proxy.py index 2fd7d57ebf..417a10bbd2 100644 --- a/synapse/app/frontend_proxy.py +++ b/synapse/app/frontend_proxy.py @@ -29,6 +29,7 @@ from synapse.config.logger import setup_logging from synapse.http.server import JsonResource from synapse.http.servlet import RestServlet, parse_json_object_from_request from synapse.http.site import SynapseSite +from synapse.logging.context import LoggingContext from synapse.metrics import RegistryProxy from synapse.metrics.resource import METRICS_PREFIX, MetricsResource from synapse.replication.slave.storage._base import BaseSlavedStore @@ -41,7 +42,6 @@ from synapse.rest.client.v2_alpha._base import client_patterns from synapse.server import HomeServer from synapse.storage.engines import create_engine from synapse.util.httpresourcetree import create_resource_tree -from synapse.util.logcontext import LoggingContext from synapse.util.manhole import manhole from synapse.util.versionstring import get_version_string diff --git a/synapse/app/homeserver.py b/synapse/app/homeserver.py index 49da105cf6..639b1429c0 100755 --- a/synapse/app/homeserver.py +++ b/synapse/app/homeserver.py @@ -54,6 +54,7 @@ from synapse.federation.transport.server import TransportLayerServer from synapse.http.additional_resource import AdditionalResource from synapse.http.server import RootRedirect from synapse.http.site import SynapseSite +from synapse.logging.context import LoggingContext from synapse.metrics import RegistryProxy from synapse.metrics.background_process_metrics import run_as_background_process from synapse.metrics.resource import METRICS_PREFIX, MetricsResource @@ -72,7 +73,6 @@ from synapse.storage.engines import IncorrectDatabaseSetup, create_engine from synapse.storage.prepare_database import UpgradeDatabaseException, prepare_database from synapse.util.caches import CACHE_SIZE_FACTOR from synapse.util.httpresourcetree import create_resource_tree -from synapse.util.logcontext import LoggingContext from synapse.util.manhole import manhole from synapse.util.module_loader import load_module from synapse.util.rlimit import change_resource_limit diff --git a/synapse/app/media_repository.py b/synapse/app/media_repository.py index cf0e2036c3..f23b9b6eda 100644 --- a/synapse/app/media_repository.py +++ b/synapse/app/media_repository.py @@ -27,6 +27,7 @@ from synapse.config._base import ConfigError from synapse.config.homeserver import HomeServerConfig from synapse.config.logger import setup_logging from synapse.http.site import SynapseSite +from synapse.logging.context import LoggingContext from synapse.metrics import RegistryProxy from synapse.metrics.resource import METRICS_PREFIX, MetricsResource from synapse.replication.slave.storage._base import BaseSlavedStore @@ -40,7 +41,6 @@ from synapse.server import HomeServer from synapse.storage.engines import create_engine from synapse.storage.media_repository import MediaRepositoryStore from synapse.util.httpresourcetree import create_resource_tree -from synapse.util.logcontext import LoggingContext from synapse.util.manhole import manhole from synapse.util.versionstring import get_version_string diff --git a/synapse/app/pusher.py b/synapse/app/pusher.py index df29ea5ecb..4f929edf86 100644 --- a/synapse/app/pusher.py +++ b/synapse/app/pusher.py @@ -26,6 +26,7 @@ from synapse.config._base import ConfigError from synapse.config.homeserver import HomeServerConfig from synapse.config.logger import setup_logging from synapse.http.site import SynapseSite +from synapse.logging.context import LoggingContext, run_in_background from synapse.metrics import RegistryProxy from synapse.metrics.resource import METRICS_PREFIX, MetricsResource from synapse.replication.slave.storage._base import __func__ @@ -38,7 +39,6 @@ from synapse.server import HomeServer from synapse.storage import DataStore from synapse.storage.engines import create_engine from synapse.util.httpresourcetree import create_resource_tree -from synapse.util.logcontext import LoggingContext, run_in_background from synapse.util.manhole import manhole from synapse.util.versionstring import get_version_string diff --git a/synapse/app/synchrotron.py b/synapse/app/synchrotron.py index 858949910d..de4797fddc 100644 --- a/synapse/app/synchrotron.py +++ b/synapse/app/synchrotron.py @@ -31,6 +31,7 @@ from synapse.config.logger import setup_logging from synapse.handlers.presence import PresenceHandler, get_interested_parties from synapse.http.server import JsonResource from synapse.http.site import SynapseSite +from synapse.logging.context import LoggingContext, run_in_background from synapse.metrics import RegistryProxy from synapse.metrics.resource import METRICS_PREFIX, MetricsResource from synapse.replication.slave.storage._base import BaseSlavedStore, __func__ @@ -57,7 +58,6 @@ from synapse.server import HomeServer from synapse.storage.engines import create_engine from synapse.storage.presence import UserPresenceState from synapse.util.httpresourcetree import create_resource_tree -from synapse.util.logcontext import LoggingContext, run_in_background from synapse.util.manhole import manhole from synapse.util.stringutils import random_string from synapse.util.versionstring import get_version_string diff --git a/synapse/app/user_dir.py b/synapse/app/user_dir.py index 2d9d2e1bbc..1177ddd72e 100644 --- a/synapse/app/user_dir.py +++ b/synapse/app/user_dir.py @@ -28,6 +28,7 @@ from synapse.config.homeserver import HomeServerConfig from synapse.config.logger import setup_logging from synapse.http.server import JsonResource from synapse.http.site import SynapseSite +from synapse.logging.context import LoggingContext, run_in_background from synapse.metrics import RegistryProxy from synapse.metrics.resource import METRICS_PREFIX, MetricsResource from synapse.replication.slave.storage._base import BaseSlavedStore @@ -46,7 +47,6 @@ from synapse.storage.engines import create_engine from synapse.storage.user_directory import UserDirectoryStore from synapse.util.caches.stream_change_cache import StreamChangeCache from synapse.util.httpresourcetree import create_resource_tree -from synapse.util.logcontext import LoggingContext, run_in_background from synapse.util.manhole import manhole from synapse.util.versionstring import get_version_string diff --git a/synapse/appservice/scheduler.py b/synapse/appservice/scheduler.py index b54bf5411f..e5b36494f5 100644 --- a/synapse/appservice/scheduler.py +++ b/synapse/appservice/scheduler.py @@ -53,8 +53,8 @@ import logging from twisted.internet import defer from synapse.appservice import ApplicationServiceState +from synapse.logging.context import run_in_background from synapse.metrics.background_process_metrics import run_as_background_process -from synapse.util.logcontext import run_in_background logger = logging.getLogger(__name__) diff --git a/synapse/config/logger.py b/synapse/config/logger.py index 931aec41c0..0f5554211c 100644 --- a/synapse/config/logger.py +++ b/synapse/config/logger.py @@ -24,7 +24,7 @@ from twisted.logger import STDLibLogObserver, globalLogBeginner import synapse from synapse.app import _base as appbase -from synapse.util.logcontext import LoggingContextFilter +from synapse.logging.context import LoggingContextFilter from synapse.util.versionstring import get_version_string from ._base import Config @@ -40,7 +40,7 @@ formatters: filters: context: - (): synapse.util.logcontext.LoggingContextFilter + (): synapse.logging.context.LoggingContextFilter request: "" handlers: diff --git a/synapse/crypto/keyring.py b/synapse/crypto/keyring.py index 10c2eb7f0f..341c863152 100644 --- a/synapse/crypto/keyring.py +++ b/synapse/crypto/keyring.py @@ -44,15 +44,16 @@ from synapse.api.errors import ( RequestSendFailed, SynapseError, ) -from synapse.storage.keys import FetchKeyResult -from synapse.util import logcontext, unwrapFirstError -from synapse.util.async_helpers import yieldable_gather_results -from synapse.util.logcontext import ( +from synapse.logging.context import ( LoggingContext, PreserveLoggingContext, + make_deferred_yieldable, preserve_fn, run_in_background, ) +from synapse.storage.keys import FetchKeyResult +from synapse.util import unwrapFirstError +from synapse.util.async_helpers import yieldable_gather_results from synapse.util.metrics import Measure from synapse.util.retryutils import NotRetryingDestination @@ -140,7 +141,7 @@ class Keyring(object): """ req = VerifyJsonRequest(server_name, json_object, validity_time, request_name) requests = (req,) - return logcontext.make_deferred_yieldable(self._verify_objects(requests)[0]) + return make_deferred_yieldable(self._verify_objects(requests)[0]) def verify_json_objects_for_server(self, server_and_json): """Bulk verifies signatures of json objects, bulk fetching keys as @@ -557,7 +558,7 @@ class BaseV2KeyFetcher(object): signed_key_json_bytes = encode_canonical_json(signed_key_json) - yield logcontext.make_deferred_yieldable( + yield make_deferred_yieldable( defer.gatherResults( [ run_in_background( @@ -612,7 +613,7 @@ class PerspectivesKeyFetcher(BaseV2KeyFetcher): defer.returnValue({}) - results = yield logcontext.make_deferred_yieldable( + results = yield make_deferred_yieldable( defer.gatherResults( [run_in_background(get_key, server) for server in self.key_servers], consumeErrors=True, diff --git a/synapse/events/snapshot.py b/synapse/events/snapshot.py index a96cdada3d..a9545e6c1b 100644 --- a/synapse/events/snapshot.py +++ b/synapse/events/snapshot.py @@ -19,7 +19,7 @@ from frozendict import frozendict from twisted.internet import defer -from synapse.util.logcontext import make_deferred_yieldable, run_in_background +from synapse.logging.context import make_deferred_yieldable, run_in_background class EventContext(object): diff --git a/synapse/federation/federation_base.py b/synapse/federation/federation_base.py index 1e925b19e7..f7bb806ae7 100644 --- a/synapse/federation/federation_base.py +++ b/synapse/federation/federation_base.py @@ -27,8 +27,14 @@ from synapse.crypto.event_signing import check_event_content_hash from synapse.events import event_type_from_format_version from synapse.events.utils import prune_event from synapse.http.servlet import assert_params_in_dict +from synapse.logging.context import ( + LoggingContext, + PreserveLoggingContext, + make_deferred_yieldable, + preserve_fn, +) from synapse.types import get_domain_from_id -from synapse.util import logcontext, unwrapFirstError +from synapse.util import unwrapFirstError logger = logging.getLogger(__name__) @@ -73,7 +79,7 @@ class FederationBase(object): @defer.inlineCallbacks def handle_check_result(pdu, deferred): try: - res = yield logcontext.make_deferred_yieldable(deferred) + res = yield make_deferred_yieldable(deferred) except SynapseError: res = None @@ -102,10 +108,10 @@ class FederationBase(object): defer.returnValue(res) - handle = logcontext.preserve_fn(handle_check_result) + handle = preserve_fn(handle_check_result) deferreds2 = [handle(pdu, deferred) for pdu, deferred in zip(pdus, deferreds)] - valid_pdus = yield logcontext.make_deferred_yieldable( + valid_pdus = yield make_deferred_yieldable( defer.gatherResults(deferreds2, consumeErrors=True) ).addErrback(unwrapFirstError) @@ -115,7 +121,7 @@ class FederationBase(object): defer.returnValue([p for p in valid_pdus if p]) def _check_sigs_and_hash(self, room_version, pdu): - return logcontext.make_deferred_yieldable( + return make_deferred_yieldable( self._check_sigs_and_hashes(room_version, [pdu])[0] ) @@ -133,14 +139,14 @@ class FederationBase(object): * returns a redacted version of the event (if the signature matched but the hash did not) * throws a SynapseError if the signature check failed. - The deferreds run their callbacks in the sentinel logcontext. + The deferreds run their callbacks in the sentinel """ deferreds = _check_sigs_on_pdus(self.keyring, room_version, pdus) - ctx = logcontext.LoggingContext.current_context() + ctx = LoggingContext.current_context() def callback(_, pdu): - with logcontext.PreserveLoggingContext(ctx): + with PreserveLoggingContext(ctx): if not check_event_content_hash(pdu): # let's try to distinguish between failures because the event was # redacted (which are somewhat expected) vs actual ball-tampering @@ -178,7 +184,7 @@ class FederationBase(object): def errback(failure, pdu): failure.trap(SynapseError) - with logcontext.PreserveLoggingContext(ctx): + with PreserveLoggingContext(ctx): logger.warn( "Signature check failed for %s: %s", pdu.event_id, diff --git a/synapse/federation/federation_client.py b/synapse/federation/federation_client.py index 3883eb525e..3cb4b94420 100644 --- a/synapse/federation/federation_client.py +++ b/synapse/federation/federation_client.py @@ -39,10 +39,10 @@ from synapse.api.room_versions import ( ) from synapse.events import builder, room_version_to_event_format from synapse.federation.federation_base import FederationBase, event_from_pdu_json -from synapse.util import logcontext, unwrapFirstError +from synapse.logging.context import make_deferred_yieldable, run_in_background +from synapse.logging.utils import log_function +from synapse.util import unwrapFirstError from synapse.util.caches.expiringcache import ExpiringCache -from synapse.util.logcontext import make_deferred_yieldable, run_in_background -from synapse.util.logutils import log_function from synapse.util.retryutils import NotRetryingDestination logger = logging.getLogger(__name__) @@ -207,7 +207,7 @@ class FederationClient(FederationBase): ] # FIXME: We should handle signature failures more gracefully. - pdus[:] = yield logcontext.make_deferred_yieldable( + pdus[:] = yield make_deferred_yieldable( defer.gatherResults( self._check_sigs_and_hashes(room_version, pdus), consumeErrors=True ).addErrback(unwrapFirstError) diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py index 2e0cebb638..8c0a18b120 100644 --- a/synapse/federation/federation_server.py +++ b/synapse/federation/federation_server.py @@ -42,6 +42,8 @@ from synapse.federation.federation_base import FederationBase, event_from_pdu_js from synapse.federation.persistence import TransactionActions from synapse.federation.units import Edu, Transaction from synapse.http.endpoint import parse_server_name +from synapse.logging.context import nested_logging_context +from synapse.logging.utils import log_function from synapse.replication.http.federation import ( ReplicationFederationSendEduRestServlet, ReplicationGetQueryRestServlet, @@ -50,8 +52,6 @@ from synapse.types import get_domain_from_id from synapse.util import glob_to_regex from synapse.util.async_helpers import Linearizer, concurrently_execute from synapse.util.caches.response_cache import ResponseCache -from synapse.util.logcontext import nested_logging_context -from synapse.util.logutils import log_function # when processing incoming transactions, we try to handle multiple rooms in # parallel, up to this limit. diff --git a/synapse/federation/persistence.py b/synapse/federation/persistence.py index 7535f79203..d086e04243 100644 --- a/synapse/federation/persistence.py +++ b/synapse/federation/persistence.py @@ -23,7 +23,7 @@ import logging from twisted.internet import defer -from synapse.util.logutils import log_function +from synapse.logging.utils import log_function logger = logging.getLogger(__name__) diff --git a/synapse/federation/sender/__init__.py b/synapse/federation/sender/__init__.py index 766c5a37cd..d46f4aaeb1 100644 --- a/synapse/federation/sender/__init__.py +++ b/synapse/federation/sender/__init__.py @@ -26,6 +26,11 @@ from synapse.federation.sender.per_destination_queue import PerDestinationQueue from synapse.federation.sender.transaction_manager import TransactionManager from synapse.federation.units import Edu from synapse.handlers.presence import get_interested_remotes +from synapse.logging.context import ( + make_deferred_yieldable, + preserve_fn, + run_in_background, +) from synapse.metrics import ( LaterGauge, event_processing_loop_counter, @@ -33,7 +38,6 @@ from synapse.metrics import ( events_processed_counter, ) from synapse.metrics.background_process_metrics import run_as_background_process -from synapse.util import logcontext from synapse.util.metrics import measure_func logger = logging.getLogger(__name__) @@ -210,10 +214,10 @@ class FederationSender(object): for event in events: events_by_room.setdefault(event.room_id, []).append(event) - yield logcontext.make_deferred_yieldable( + yield make_deferred_yieldable( defer.gatherResults( [ - logcontext.run_in_background(handle_room_events, evs) + run_in_background(handle_room_events, evs) for evs in itervalues(events_by_room) ], consumeErrors=True, @@ -360,7 +364,7 @@ class FederationSender(object): for queue in queues: queue.flush_read_receipts_for_room(room_id) - @logcontext.preserve_fn # the caller should not yield on this + @preserve_fn # the caller should not yield on this @defer.inlineCallbacks def send_presence(self, states): """Send the new presence states to the appropriate destinations. diff --git a/synapse/federation/transport/client.py b/synapse/federation/transport/client.py index aecd142309..1aae9ec9e7 100644 --- a/synapse/federation/transport/client.py +++ b/synapse/federation/transport/client.py @@ -22,7 +22,7 @@ from twisted.internet import defer from synapse.api.constants import Membership from synapse.api.urls import FEDERATION_V1_PREFIX, FEDERATION_V2_PREFIX -from synapse.util.logutils import log_function +from synapse.logging.utils import log_function logger = logging.getLogger(__name__) diff --git a/synapse/federation/transport/server.py b/synapse/federation/transport/server.py index 955f0f4308..2efdcff7ef 100644 --- a/synapse/federation/transport/server.py +++ b/synapse/federation/transport/server.py @@ -36,8 +36,8 @@ from synapse.http.servlet import ( parse_json_object_from_request, parse_string_from_args, ) +from synapse.logging.context import run_in_background from synapse.types import ThirdPartyInstanceID, get_domain_from_id -from synapse.util.logcontext import run_in_background from synapse.util.ratelimitutils import FederationRateLimiter from synapse.util.versionstring import get_version_string diff --git a/synapse/groups/attestations.py b/synapse/groups/attestations.py index e73757570c..f497711133 100644 --- a/synapse/groups/attestations.py +++ b/synapse/groups/attestations.py @@ -43,9 +43,9 @@ from signedjson.sign import sign_json from twisted.internet import defer from synapse.api.errors import HttpResponseException, RequestSendFailed, SynapseError +from synapse.logging.context import run_in_background from synapse.metrics.background_process_metrics import run_as_background_process from synapse.types import get_domain_from_id -from synapse.util.logcontext import run_in_background logger = logging.getLogger(__name__) diff --git a/synapse/handlers/account_validity.py b/synapse/handlers/account_validity.py index edb48054a0..1f1708ba7d 100644 --- a/synapse/handlers/account_validity.py +++ b/synapse/handlers/account_validity.py @@ -22,10 +22,10 @@ from email.mime.text import MIMEText from twisted.internet import defer from synapse.api.errors import StoreError +from synapse.logging.context import make_deferred_yieldable from synapse.metrics.background_process_metrics import run_as_background_process from synapse.types import UserID from synapse.util import stringutils -from synapse.util.logcontext import make_deferred_yieldable try: from synapse.push.mailer import load_jinja2_templates diff --git a/synapse/handlers/appservice.py b/synapse/handlers/appservice.py index 5cc89d43f6..8f089f0e33 100644 --- a/synapse/handlers/appservice.py +++ b/synapse/handlers/appservice.py @@ -23,13 +23,13 @@ from twisted.internet import defer import synapse from synapse.api.constants import EventTypes +from synapse.logging.context import make_deferred_yieldable, run_in_background from synapse.metrics import ( event_processing_loop_counter, event_processing_loop_room_count, ) from synapse.metrics.background_process_metrics import run_as_background_process from synapse.util import log_failure -from synapse.util.logcontext import make_deferred_yieldable, run_in_background from synapse.util.metrics import Measure logger = logging.getLogger(__name__) diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py index c8c1ed3246..ef5585aa99 100644 --- a/synapse/handlers/auth.py +++ b/synapse/handlers/auth.py @@ -36,9 +36,9 @@ from synapse.api.errors import ( SynapseError, ) from synapse.api.ratelimiting import Ratelimiter +from synapse.logging.context import defer_to_thread from synapse.module_api import ModuleApi from synapse.types import UserID -from synapse.util import logcontext from synapse.util.caches.expiringcache import ExpiringCache from ._base import BaseHandler @@ -987,7 +987,7 @@ class AuthHandler(BaseHandler): bcrypt.gensalt(self.bcrypt_rounds), ).decode("ascii") - return logcontext.defer_to_thread(self.hs.get_reactor(), _do_hash) + return defer_to_thread(self.hs.get_reactor(), _do_hash) def validate_hash(self, password, stored_hash): """Validates that self.hash(password) == stored_hash. @@ -1013,7 +1013,7 @@ class AuthHandler(BaseHandler): if not isinstance(stored_hash, bytes): stored_hash = stored_hash.encode("ascii") - return logcontext.defer_to_thread(self.hs.get_reactor(), _do_validate_hash) + return defer_to_thread(self.hs.get_reactor(), _do_validate_hash) else: return defer.succeed(False) diff --git a/synapse/handlers/e2e_keys.py b/synapse/handlers/e2e_keys.py index 807900fe52..55b4ab3a1a 100644 --- a/synapse/handlers/e2e_keys.py +++ b/synapse/handlers/e2e_keys.py @@ -23,8 +23,8 @@ from canonicaljson import encode_canonical_json, json from twisted.internet import defer from synapse.api.errors import CodeMessageException, FederationDeniedError, SynapseError +from synapse.logging.context import make_deferred_yieldable, run_in_background from synapse.types import UserID, get_domain_from_id -from synapse.util.logcontext import make_deferred_yieldable, run_in_background from synapse.util.retryutils import NotRetryingDestination logger = logging.getLogger(__name__) diff --git a/synapse/handlers/events.py b/synapse/handlers/events.py index 5836d3c639..6a38328af3 100644 --- a/synapse/handlers/events.py +++ b/synapse/handlers/events.py @@ -21,8 +21,8 @@ from twisted.internet import defer from synapse.api.constants import EventTypes, Membership from synapse.api.errors import AuthError, SynapseError from synapse.events import EventBase +from synapse.logging.utils import log_function from synapse.types import UserID -from synapse.util.logutils import log_function from synapse.visibility import filter_events_for_client from ._base import BaseHandler diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 02d397c498..57be968c67 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -45,6 +45,13 @@ from synapse.api.room_versions import KNOWN_ROOM_VERSIONS, RoomVersions from synapse.crypto.event_signing import compute_event_signature from synapse.event_auth import auth_types_for_event from synapse.events.validator import EventValidator +from synapse.logging.context import ( + make_deferred_yieldable, + nested_logging_context, + preserve_fn, + run_in_background, +) +from synapse.logging.utils import log_function from synapse.replication.http.federation import ( ReplicationCleanRoomRestServlet, ReplicationFederationSendEventsRestServlet, @@ -52,10 +59,9 @@ from synapse.replication.http.federation import ( from synapse.replication.http.membership import ReplicationUserJoinedLeftRoomRestServlet from synapse.state import StateResolutionStore, resolve_events_with_store from synapse.types import UserID, get_domain_from_id -from synapse.util import logcontext, unwrapFirstError +from synapse.util import unwrapFirstError from synapse.util.async_helpers import Linearizer from synapse.util.distributor import user_joined_room -from synapse.util.logutils import log_function from synapse.util.retryutils import NotRetryingDestination from synapse.visibility import filter_events_for_server @@ -338,7 +344,7 @@ class FederationHandler(BaseHandler): room_version = yield self.store.get_room_version(room_id) - with logcontext.nested_logging_context(p): + with nested_logging_context(p): # note that if any of the missing prevs share missing state or # auth events, the requests to fetch those events are deduped # by the get_pdu_cache in federation_client. @@ -532,7 +538,7 @@ class FederationHandler(BaseHandler): event_id, ev.event_id, ) - with logcontext.nested_logging_context(ev.event_id): + with nested_logging_context(ev.event_id): try: yield self.on_receive_pdu(origin, ev, sent_to_us_directly=False) except FederationError as e: @@ -725,10 +731,10 @@ class FederationHandler(BaseHandler): missing_auth - failed_to_fetch, ) - results = yield logcontext.make_deferred_yieldable( + results = yield make_deferred_yieldable( defer.gatherResults( [ - logcontext.run_in_background( + run_in_background( self.federation_client.get_pdu, [dest], event_id, @@ -994,10 +1000,8 @@ class FederationHandler(BaseHandler): event_ids = list(extremities.keys()) logger.debug("calling resolve_state_groups in _maybe_backfill") - resolve = logcontext.preserve_fn( - self.state_handler.resolve_state_groups_for_events - ) - states = yield logcontext.make_deferred_yieldable( + resolve = preserve_fn(self.state_handler.resolve_state_groups_for_events) + states = yield make_deferred_yieldable( defer.gatherResults( [resolve(room_id, [e]) for e in event_ids], consumeErrors=True ) @@ -1171,7 +1175,7 @@ class FederationHandler(BaseHandler): # lots of requests for missing prev_events which we do actually # have. Hence we fire off the deferred, but don't wait for it. - logcontext.run_in_background(self._handle_queued_pdus, room_queue) + run_in_background(self._handle_queued_pdus, room_queue) defer.returnValue(True) @@ -1191,7 +1195,7 @@ class FederationHandler(BaseHandler): p.event_id, p.room_id, ) - with logcontext.nested_logging_context(p.event_id): + with nested_logging_context(p.event_id): yield self.on_receive_pdu(origin, p, sent_to_us_directly=True) except Exception as e: logger.warn( @@ -1610,7 +1614,7 @@ class FederationHandler(BaseHandler): success = True finally: if not success: - logcontext.run_in_background( + run_in_background( self.store.remove_push_actions_from_staging, event.event_id ) @@ -1629,7 +1633,7 @@ class FederationHandler(BaseHandler): @defer.inlineCallbacks def prep(ev_info): event = ev_info["event"] - with logcontext.nested_logging_context(suffix=event.event_id): + with nested_logging_context(suffix=event.event_id): res = yield self._prep_event( origin, event, @@ -1639,12 +1643,9 @@ class FederationHandler(BaseHandler): ) defer.returnValue(res) - contexts = yield logcontext.make_deferred_yieldable( + contexts = yield make_deferred_yieldable( defer.gatherResults( - [ - logcontext.run_in_background(prep, ev_info) - for ev_info in event_infos - ], + [run_in_background(prep, ev_info) for ev_info in event_infos], consumeErrors=True, ) ) @@ -2106,10 +2107,10 @@ class FederationHandler(BaseHandler): room_version = yield self.store.get_room_version(event.room_id) - different_events = yield logcontext.make_deferred_yieldable( + different_events = yield make_deferred_yieldable( defer.gatherResults( [ - logcontext.run_in_background( + run_in_background( self.store.get_event, d, allow_none=True, allow_rejected=False ) for d in different_auth diff --git a/synapse/handlers/initial_sync.py b/synapse/handlers/initial_sync.py index a1fe9d116f..54c966c8a6 100644 --- a/synapse/handlers/initial_sync.py +++ b/synapse/handlers/initial_sync.py @@ -21,12 +21,12 @@ from synapse.api.constants import EventTypes, Membership from synapse.api.errors import AuthError, Codes, SynapseError from synapse.events.validator import EventValidator from synapse.handlers.presence import format_user_presence_state +from synapse.logging.context import make_deferred_yieldable, run_in_background from synapse.streams.config import PaginationConfig from synapse.types import StreamToken, UserID from synapse.util import unwrapFirstError from synapse.util.async_helpers import concurrently_execute from synapse.util.caches.snapshot_cache import SnapshotCache -from synapse.util.logcontext import make_deferred_yieldable, run_in_background from synapse.visibility import filter_events_for_client from ._base import BaseHandler diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index 683da6bf32..eaeda7a5cb 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -34,13 +34,13 @@ from synapse.api.errors import ( from synapse.api.room_versions import RoomVersions from synapse.api.urls import ConsentURIBuilder from synapse.events.validator import EventValidator +from synapse.logging.context import run_in_background from synapse.metrics.background_process_metrics import run_as_background_process from synapse.replication.http.send_event import ReplicationSendEventRestServlet from synapse.storage.state import StateFilter from synapse.types import RoomAlias, UserID, create_requester from synapse.util.async_helpers import Linearizer from synapse.util.frozenutils import frozendict_json_encoder -from synapse.util.logcontext import run_in_background from synapse.util.metrics import measure_func from synapse.visibility import filter_events_for_client diff --git a/synapse/handlers/pagination.py b/synapse/handlers/pagination.py index 76ee97ddd3..20bcfed334 100644 --- a/synapse/handlers/pagination.py +++ b/synapse/handlers/pagination.py @@ -20,10 +20,10 @@ from twisted.python.failure import Failure from synapse.api.constants import EventTypes, Membership from synapse.api.errors import SynapseError +from synapse.logging.context import run_in_background from synapse.storage.state import StateFilter from synapse.types import RoomStreamToken from synapse.util.async_helpers import ReadWriteLock -from synapse.util.logcontext import run_in_background from synapse.util.stringutils import random_string from synapse.visibility import filter_events_for_client diff --git a/synapse/handlers/presence.py b/synapse/handlers/presence.py index c80dc2eba0..6f3537e435 100644 --- a/synapse/handlers/presence.py +++ b/synapse/handlers/presence.py @@ -34,14 +34,14 @@ from twisted.internet import defer import synapse.metrics from synapse.api.constants import EventTypes, Membership, PresenceState from synapse.api.errors import SynapseError +from synapse.logging.context import run_in_background +from synapse.logging.utils import log_function from synapse.metrics import LaterGauge from synapse.metrics.background_process_metrics import run_as_background_process from synapse.storage.presence import UserPresenceState from synapse.types import UserID, get_domain_from_id from synapse.util.async_helpers import Linearizer from synapse.util.caches.descriptors import cachedInlineCallbacks -from synapse.util.logcontext import run_in_background -from synapse.util.logutils import log_function from synapse.util.metrics import Measure from synapse.util.wheel_timer import WheelTimer diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py index a3f550554f..cd1ac0a27a 100644 --- a/synapse/handlers/sync.py +++ b/synapse/handlers/sync.py @@ -25,6 +25,7 @@ from prometheus_client import Counter from twisted.internet import defer from synapse.api.constants import EventTypes, Membership +from synapse.logging.context import LoggingContext from synapse.push.clientformat import format_push_rules_for_user from synapse.storage.roommember import MemberSummary from synapse.storage.state import StateFilter @@ -33,7 +34,6 @@ from synapse.util.async_helpers import concurrently_execute from synapse.util.caches.expiringcache import ExpiringCache from synapse.util.caches.lrucache import LruCache from synapse.util.caches.response_cache import ResponseCache -from synapse.util.logcontext import LoggingContext from synapse.util.metrics import Measure, measure_func from synapse.visibility import filter_events_for_client diff --git a/synapse/handlers/typing.py b/synapse/handlers/typing.py index f8062c8671..c3e0c8fc7e 100644 --- a/synapse/handlers/typing.py +++ b/synapse/handlers/typing.py @@ -19,9 +19,9 @@ from collections import namedtuple from twisted.internet import defer from synapse.api.errors import AuthError, SynapseError +from synapse.logging.context import run_in_background from synapse.types import UserID, get_domain_from_id from synapse.util.caches.stream_change_cache import StreamChangeCache -from synapse.util.logcontext import run_in_background from synapse.util.metrics import Measure from synapse.util.wheel_timer import WheelTimer diff --git a/synapse/http/client.py b/synapse/http/client.py index 9bc7035c8d..45d5010952 100644 --- a/synapse/http/client.py +++ b/synapse/http/client.py @@ -45,9 +45,9 @@ from synapse.http import ( cancelled_to_request_timed_out_error, redact_uri, ) +from synapse.logging.context import make_deferred_yieldable from synapse.util.async_helpers import timeout_deferred from synapse.util.caches import CACHE_SIZE_FACTOR -from synapse.util.logcontext import make_deferred_yieldable logger = logging.getLogger(__name__) diff --git a/synapse/http/federation/matrix_federation_agent.py b/synapse/http/federation/matrix_federation_agent.py index 414cde0777..054c321a20 100644 --- a/synapse/http/federation/matrix_federation_agent.py +++ b/synapse/http/federation/matrix_federation_agent.py @@ -30,9 +30,9 @@ from twisted.web.http_headers import Headers from twisted.web.iweb import IAgent from synapse.http.federation.srv_resolver import SrvResolver, pick_server_from_list +from synapse.logging.context import make_deferred_yieldable from synapse.util import Clock from synapse.util.caches.ttlcache import TTLCache -from synapse.util.logcontext import make_deferred_yieldable from synapse.util.metrics import Measure # period to cache .well-known results for by default diff --git a/synapse/http/federation/srv_resolver.py b/synapse/http/federation/srv_resolver.py index 1f22f78a75..ecc88f9b96 100644 --- a/synapse/http/federation/srv_resolver.py +++ b/synapse/http/federation/srv_resolver.py @@ -25,7 +25,7 @@ from twisted.internet.error import ConnectError from twisted.names import client, dns from twisted.names.error import DNSNameError, DomainError -from synapse.util.logcontext import make_deferred_yieldable +from synapse.logging.context import make_deferred_yieldable logger = logging.getLogger(__name__) diff --git a/synapse/http/matrixfederationclient.py b/synapse/http/matrixfederationclient.py index 5ef8bb60a3..dee3710f68 100644 --- a/synapse/http/matrixfederationclient.py +++ b/synapse/http/matrixfederationclient.py @@ -48,8 +48,8 @@ from synapse.api.errors import ( from synapse.http import QuieterFileBodyProducer from synapse.http.client import BlacklistingAgentWrapper, IPBlacklistingResolver from synapse.http.federation.matrix_federation_agent import MatrixFederationAgent +from synapse.logging.context import make_deferred_yieldable from synapse.util.async_helpers import timeout_deferred -from synapse.util.logcontext import make_deferred_yieldable from synapse.util.metrics import Measure logger = logging.getLogger(__name__) diff --git a/synapse/http/request_metrics.py b/synapse/http/request_metrics.py index 62045a918b..46af27c8f6 100644 --- a/synapse/http/request_metrics.py +++ b/synapse/http/request_metrics.py @@ -19,8 +19,8 @@ import threading from prometheus_client.core import Counter, Histogram +from synapse.logging.context import LoggingContext from synapse.metrics import LaterGauge -from synapse.util.logcontext import LoggingContext logger = logging.getLogger(__name__) diff --git a/synapse/http/server.py b/synapse/http/server.py index d993161a3e..72a3d67eb6 100644 --- a/synapse/http/server.py +++ b/synapse/http/server.py @@ -39,8 +39,8 @@ from synapse.api.errors import ( SynapseError, UnrecognizedRequestError, ) +from synapse.logging.context import preserve_fn from synapse.util.caches import intern_dict -from synapse.util.logcontext import preserve_fn logger = logging.getLogger(__name__) diff --git a/synapse/http/site.py b/synapse/http/site.py index 93f679ea48..df5274c177 100644 --- a/synapse/http/site.py +++ b/synapse/http/site.py @@ -19,7 +19,7 @@ from twisted.web.server import Request, Site from synapse.http import redact_uri from synapse.http.request_metrics import RequestMetrics, requests_counter -from synapse.util.logcontext import LoggingContext, PreserveLoggingContext +from synapse.logging.context import LoggingContext, PreserveLoggingContext logger = logging.getLogger(__name__) diff --git a/synapse/logging/__init__.py b/synapse/logging/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/synapse/logging/context.py b/synapse/logging/context.py new file mode 100644 index 0000000000..30dfa1d6b2 --- /dev/null +++ b/synapse/logging/context.py @@ -0,0 +1,693 @@ +# Copyright 2014-2016 OpenMarket Ltd +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +""" Thread-local-alike tracking of log contexts within synapse + +This module provides objects and utilities for tracking contexts through +synapse code, so that log lines can include a request identifier, and so that +CPU and database activity can be accounted for against the request that caused +them. + +See doc/log_contexts.rst for details on how this works. +""" + +import logging +import threading +import types + +from twisted.internet import defer, threads + +logger = logging.getLogger(__name__) + +try: + import resource + + # Python doesn't ship with a definition of RUSAGE_THREAD but it's defined + # to be 1 on linux so we hard code it. + RUSAGE_THREAD = 1 + + # If the system doesn't support RUSAGE_THREAD then this should throw an + # exception. + resource.getrusage(RUSAGE_THREAD) + + def get_thread_resource_usage(): + return resource.getrusage(RUSAGE_THREAD) + + +except Exception: + # If the system doesn't support resource.getrusage(RUSAGE_THREAD) then we + # won't track resource usage by returning None. + def get_thread_resource_usage(): + return None + + +# get an id for the current thread. +# +# threading.get_ident doesn't actually return an OS-level tid, and annoyingly, +# on Linux it actually returns the same value either side of a fork() call. However +# we only fork in one place, so it's not worth the hoop-jumping to get a real tid. +# +get_thread_id = threading.get_ident + + +class ContextResourceUsage(object): + """Object for tracking the resources used by a log context + + Attributes: + ru_utime (float): user CPU time (in seconds) + ru_stime (float): system CPU time (in seconds) + db_txn_count (int): number of database transactions done + db_sched_duration_sec (float): amount of time spent waiting for a + database connection + db_txn_duration_sec (float): amount of time spent doing database + transactions (excluding scheduling time) + evt_db_fetch_count (int): number of events requested from the database + """ + + __slots__ = [ + "ru_stime", + "ru_utime", + "db_txn_count", + "db_txn_duration_sec", + "db_sched_duration_sec", + "evt_db_fetch_count", + ] + + def __init__(self, copy_from=None): + """Create a new ContextResourceUsage + + Args: + copy_from (ContextResourceUsage|None): if not None, an object to + copy stats from + """ + if copy_from is None: + self.reset() + else: + self.ru_utime = copy_from.ru_utime + self.ru_stime = copy_from.ru_stime + self.db_txn_count = copy_from.db_txn_count + + self.db_txn_duration_sec = copy_from.db_txn_duration_sec + self.db_sched_duration_sec = copy_from.db_sched_duration_sec + self.evt_db_fetch_count = copy_from.evt_db_fetch_count + + def copy(self): + return ContextResourceUsage(copy_from=self) + + def reset(self): + self.ru_stime = 0.0 + self.ru_utime = 0.0 + self.db_txn_count = 0 + + self.db_txn_duration_sec = 0 + self.db_sched_duration_sec = 0 + self.evt_db_fetch_count = 0 + + def __repr__(self): + return ( + "" + ) % ( + self.ru_stime, + self.ru_utime, + self.db_txn_count, + self.db_txn_duration_sec, + self.db_sched_duration_sec, + self.evt_db_fetch_count, + ) + + def __iadd__(self, other): + """Add another ContextResourceUsage's stats to this one's. + + Args: + other (ContextResourceUsage): the other resource usage object + """ + self.ru_utime += other.ru_utime + self.ru_stime += other.ru_stime + self.db_txn_count += other.db_txn_count + self.db_txn_duration_sec += other.db_txn_duration_sec + self.db_sched_duration_sec += other.db_sched_duration_sec + self.evt_db_fetch_count += other.evt_db_fetch_count + return self + + def __isub__(self, other): + self.ru_utime -= other.ru_utime + self.ru_stime -= other.ru_stime + self.db_txn_count -= other.db_txn_count + self.db_txn_duration_sec -= other.db_txn_duration_sec + self.db_sched_duration_sec -= other.db_sched_duration_sec + self.evt_db_fetch_count -= other.evt_db_fetch_count + return self + + def __add__(self, other): + res = ContextResourceUsage(copy_from=self) + res += other + return res + + def __sub__(self, other): + res = ContextResourceUsage(copy_from=self) + res -= other + return res + + +class LoggingContext(object): + """Additional context for log formatting. Contexts are scoped within a + "with" block. + + If a parent is given when creating a new context, then: + - logging fields are copied from the parent to the new context on entry + - when the new context exits, the cpu usage stats are copied from the + child to the parent + + Args: + name (str): Name for the context for debugging. + parent_context (LoggingContext|None): The parent of the new context + """ + + __slots__ = [ + "previous_context", + "name", + "parent_context", + "_resource_usage", + "usage_start", + "main_thread", + "alive", + "request", + "tag", + ] + + thread_local = threading.local() + + class Sentinel(object): + """Sentinel to represent the root context""" + + __slots__ = [] + + def __str__(self): + return "sentinel" + + def copy_to(self, record): + pass + + def start(self): + pass + + def stop(self): + pass + + def add_database_transaction(self, duration_sec): + pass + + def add_database_scheduled(self, sched_sec): + pass + + def record_event_fetch(self, event_count): + pass + + def __nonzero__(self): + return False + + __bool__ = __nonzero__ # python3 + + sentinel = Sentinel() + + def __init__(self, name=None, parent_context=None, request=None): + self.previous_context = LoggingContext.current_context() + self.name = name + + # track the resources used by this context so far + self._resource_usage = ContextResourceUsage() + + # If alive has the thread resource usage when the logcontext last + # became active. + self.usage_start = None + + self.main_thread = get_thread_id() + self.request = None + self.tag = "" + self.alive = True + + self.parent_context = parent_context + + if self.parent_context is not None: + self.parent_context.copy_to(self) + + if request is not None: + # the request param overrides the request from the parent context + self.request = request + + def __str__(self): + if self.request: + return str(self.request) + return "%s@%x" % (self.name, id(self)) + + @classmethod + def current_context(cls): + """Get the current logging context from thread local storage + + Returns: + LoggingContext: the current logging context + """ + return getattr(cls.thread_local, "current_context", cls.sentinel) + + @classmethod + def set_current_context(cls, context): + """Set the current logging context in thread local storage + Args: + context(LoggingContext): The context to activate. + Returns: + The context that was previously active + """ + current = cls.current_context() + + if current is not context: + current.stop() + cls.thread_local.current_context = context + context.start() + return current + + def __enter__(self): + """Enters this logging context into thread local storage""" + old_context = self.set_current_context(self) + if self.previous_context != old_context: + logger.warn( + "Expected previous context %r, found %r", + self.previous_context, + old_context, + ) + self.alive = True + + return self + + def __exit__(self, type, value, traceback): + """Restore the logging context in thread local storage to the state it + was before this context was entered. + Returns: + None to avoid suppressing any exceptions that were thrown. + """ + current = self.set_current_context(self.previous_context) + if current is not self: + if current is self.sentinel: + logger.warning("Expected logging context %s was lost", self) + else: + logger.warning( + "Expected logging context %s but found %s", self, current + ) + self.previous_context = None + self.alive = False + + # if we have a parent, pass our CPU usage stats on + if self.parent_context is not None and hasattr( + self.parent_context, "_resource_usage" + ): + self.parent_context._resource_usage += self._resource_usage + + # reset them in case we get entered again + self._resource_usage.reset() + + def copy_to(self, record): + """Copy logging fields from this context to a log record or + another LoggingContext + """ + + # 'request' is the only field we currently use in the logger, so that's + # all we need to copy + record.request = self.request + + def start(self): + if get_thread_id() != self.main_thread: + logger.warning("Started logcontext %s on different thread", self) + return + + # If we haven't already started record the thread resource usage so + # far + if not self.usage_start: + self.usage_start = get_thread_resource_usage() + + def stop(self): + if get_thread_id() != self.main_thread: + logger.warning("Stopped logcontext %s on different thread", self) + return + + # When we stop, let's record the cpu used since we started + if not self.usage_start: + logger.warning("Called stop on logcontext %s without calling start", self) + return + + utime_delta, stime_delta = self._get_cputime() + self._resource_usage.ru_utime += utime_delta + self._resource_usage.ru_stime += stime_delta + + self.usage_start = None + + def get_resource_usage(self): + """Get resources used by this logcontext so far. + + Returns: + ContextResourceUsage: a *copy* of the object tracking resource + usage so far + """ + # we always return a copy, for consistency + res = self._resource_usage.copy() + + # If we are on the correct thread and we're currently running then we + # can include resource usage so far. + is_main_thread = get_thread_id() == self.main_thread + if self.alive and self.usage_start and is_main_thread: + utime_delta, stime_delta = self._get_cputime() + res.ru_utime += utime_delta + res.ru_stime += stime_delta + + return res + + def _get_cputime(self): + """Get the cpu usage time so far + + Returns: Tuple[float, float]: seconds in user mode, seconds in system mode + """ + current = get_thread_resource_usage() + + utime_delta = current.ru_utime - self.usage_start.ru_utime + stime_delta = current.ru_stime - self.usage_start.ru_stime + + # sanity check + if utime_delta < 0: + logger.error( + "utime went backwards! %f < %f", + current.ru_utime, + self.usage_start.ru_utime, + ) + utime_delta = 0 + + if stime_delta < 0: + logger.error( + "stime went backwards! %f < %f", + current.ru_stime, + self.usage_start.ru_stime, + ) + stime_delta = 0 + + return utime_delta, stime_delta + + def add_database_transaction(self, duration_sec): + if duration_sec < 0: + raise ValueError("DB txn time can only be non-negative") + self._resource_usage.db_txn_count += 1 + self._resource_usage.db_txn_duration_sec += duration_sec + + def add_database_scheduled(self, sched_sec): + """Record a use of the database pool + + Args: + sched_sec (float): number of seconds it took us to get a + connection + """ + if sched_sec < 0: + raise ValueError("DB scheduling time can only be non-negative") + self._resource_usage.db_sched_duration_sec += sched_sec + + def record_event_fetch(self, event_count): + """Record a number of events being fetched from the db + + Args: + event_count (int): number of events being fetched + """ + self._resource_usage.evt_db_fetch_count += event_count + + +class LoggingContextFilter(logging.Filter): + """Logging filter that adds values from the current logging context to each + record. + Args: + **defaults: Default values to avoid formatters complaining about + missing fields + """ + + def __init__(self, **defaults): + self.defaults = defaults + + def filter(self, record): + """Add each fields from the logging contexts to the record. + Returns: + True to include the record in the log output. + """ + context = LoggingContext.current_context() + for key, value in self.defaults.items(): + setattr(record, key, value) + + # context should never be None, but if it somehow ends up being, then + # we end up in a death spiral of infinite loops, so let's check, for + # robustness' sake. + if context is not None: + context.copy_to(record) + + return True + + +class PreserveLoggingContext(object): + """Captures the current logging context and restores it when the scope is + exited. Used to restore the context after a function using + @defer.inlineCallbacks is resumed by a callback from the reactor.""" + + __slots__ = ["current_context", "new_context", "has_parent"] + + def __init__(self, new_context=None): + if new_context is None: + new_context = LoggingContext.sentinel + self.new_context = new_context + + def __enter__(self): + """Captures the current logging context""" + self.current_context = LoggingContext.set_current_context(self.new_context) + + if self.current_context: + self.has_parent = self.current_context.previous_context is not None + if not self.current_context.alive: + logger.debug("Entering dead context: %s", self.current_context) + + def __exit__(self, type, value, traceback): + """Restores the current logging context""" + context = LoggingContext.set_current_context(self.current_context) + + if context != self.new_context: + if context is LoggingContext.sentinel: + logger.warning("Expected logging context %s was lost", self.new_context) + else: + logger.warning( + "Expected logging context %s but found %s", + self.new_context, + context, + ) + + if self.current_context is not LoggingContext.sentinel: + if not self.current_context.alive: + logger.debug("Restoring dead context: %s", self.current_context) + + +def nested_logging_context(suffix, parent_context=None): + """Creates a new logging context as a child of another. + + The nested logging context will have a 'request' made up of the parent context's + request, plus the given suffix. + + CPU/db usage stats will be added to the parent context's on exit. + + Normal usage looks like: + + with nested_logging_context(suffix): + # ... do stuff + + Args: + suffix (str): suffix to add to the parent context's 'request'. + parent_context (LoggingContext|None): parent context. Will use the current context + if None. + + Returns: + LoggingContext: new logging context. + """ + if parent_context is None: + parent_context = LoggingContext.current_context() + return LoggingContext( + parent_context=parent_context, request=parent_context.request + "-" + suffix + ) + + +def preserve_fn(f): + """Function decorator which wraps the function with run_in_background""" + + def g(*args, **kwargs): + return run_in_background(f, *args, **kwargs) + + return g + + +def run_in_background(f, *args, **kwargs): + """Calls a function, ensuring that the current context is restored after + return from the function, and that the sentinel context is set once the + deferred returned by the function completes. + + Useful for wrapping functions that return a deferred or coroutine, which you don't + yield or await on (for instance because you want to pass it to + deferred.gatherResults()). + + Note that if you completely discard the result, you should make sure that + `f` doesn't raise any deferred exceptions, otherwise a scary-looking + CRITICAL error about an unhandled error will be logged without much + indication about where it came from. + """ + current = LoggingContext.current_context() + try: + res = f(*args, **kwargs) + except: # noqa: E722 + # the assumption here is that the caller doesn't want to be disturbed + # by synchronous exceptions, so let's turn them into Failures. + return defer.fail() + + if isinstance(res, types.CoroutineType): + res = defer.ensureDeferred(res) + + if not isinstance(res, defer.Deferred): + return res + + if res.called and not res.paused: + # The function should have maintained the logcontext, so we can + # optimise out the messing about + return res + + # The function may have reset the context before returning, so + # we need to restore it now. + ctx = LoggingContext.set_current_context(current) + + # The original context will be restored when the deferred + # completes, but there is nothing waiting for it, so it will + # get leaked into the reactor or some other function which + # wasn't expecting it. We therefore need to reset the context + # here. + # + # (If this feels asymmetric, consider it this way: we are + # effectively forking a new thread of execution. We are + # probably currently within a ``with LoggingContext()`` block, + # which is supposed to have a single entry and exit point. But + # by spawning off another deferred, we are effectively + # adding a new exit point.) + res.addBoth(_set_context_cb, ctx) + return res + + +def make_deferred_yieldable(deferred): + """Given a deferred, make it follow the Synapse logcontext rules: + + If the deferred has completed (or is not actually a Deferred), essentially + does nothing (just returns another completed deferred with the + result/failure). + + If the deferred has not yet completed, resets the logcontext before + returning a deferred. Then, when the deferred completes, restores the + current logcontext before running callbacks/errbacks. + + (This is more-or-less the opposite operation to run_in_background.) + """ + if not isinstance(deferred, defer.Deferred): + return deferred + + if deferred.called and not deferred.paused: + # it looks like this deferred is ready to run any callbacks we give it + # immediately. We may as well optimise out the logcontext faffery. + return deferred + + # ok, we can't be sure that a yield won't block, so let's reset the + # logcontext, and add a callback to the deferred to restore it. + prev_context = LoggingContext.set_current_context(LoggingContext.sentinel) + deferred.addBoth(_set_context_cb, prev_context) + return deferred + + +def _set_context_cb(result, context): + """A callback function which just sets the logging context""" + LoggingContext.set_current_context(context) + return result + + +def defer_to_thread(reactor, f, *args, **kwargs): + """ + Calls the function `f` using a thread from the reactor's default threadpool and + returns the result as a Deferred. + + Creates a new logcontext for `f`, which is created as a child of the current + logcontext (so its CPU usage metrics will get attributed to the current + logcontext). `f` should preserve the logcontext it is given. + + The result deferred follows the Synapse logcontext rules: you should `yield` + on it. + + Args: + reactor (twisted.internet.base.ReactorBase): The reactor in whose main thread + the Deferred will be invoked, and whose threadpool we should use for the + function. + + Normally this will be hs.get_reactor(). + + f (callable): The function to call. + + args: positional arguments to pass to f. + + kwargs: keyword arguments to pass to f. + + Returns: + Deferred: A Deferred which fires a callback with the result of `f`, or an + errback if `f` throws an exception. + """ + return defer_to_threadpool(reactor, reactor.getThreadPool(), f, *args, **kwargs) + + +def defer_to_threadpool(reactor, threadpool, f, *args, **kwargs): + """ + A wrapper for twisted.internet.threads.deferToThreadpool, which handles + logcontexts correctly. + + Calls the function `f` using a thread from the given threadpool and returns + the result as a Deferred. + + Creates a new logcontext for `f`, which is created as a child of the current + logcontext (so its CPU usage metrics will get attributed to the current + logcontext). `f` should preserve the logcontext it is given. + + The result deferred follows the Synapse logcontext rules: you should `yield` + on it. + + Args: + reactor (twisted.internet.base.ReactorBase): The reactor in whose main thread + the Deferred will be invoked. Normally this will be hs.get_reactor(). + + threadpool (twisted.python.threadpool.ThreadPool): The threadpool to use for + running `f`. Normally this will be hs.get_reactor().getThreadPool(). + + f (callable): The function to call. + + args: positional arguments to pass to f. + + kwargs: keyword arguments to pass to f. + + Returns: + Deferred: A Deferred which fires a callback with the result of `f`, or an + errback if `f` throws an exception. + """ + logcontext = LoggingContext.current_context() + + def g(): + with LoggingContext(parent_context=logcontext): + return f(*args, **kwargs) + + return make_deferred_yieldable(threads.deferToThreadPool(reactor, threadpool, g)) diff --git a/synapse/logging/formatter.py b/synapse/logging/formatter.py new file mode 100644 index 0000000000..fbf570c756 --- /dev/null +++ b/synapse/logging/formatter.py @@ -0,0 +1,53 @@ +# -*- coding: utf-8 -*- +# Copyright 2017 New Vector Ltd +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + + +import logging +import traceback + +from six import StringIO + + +class LogFormatter(logging.Formatter): + """Log formatter which gives more detail for exceptions + + This is the same as the standard log formatter, except that when logging + exceptions [typically via log.foo("msg", exc_info=1)], it prints the + sequence that led up to the point at which the exception was caught. + (Normally only stack frames between the point the exception was raised and + where it was caught are logged). + """ + + def __init__(self, *args, **kwargs): + super(LogFormatter, self).__init__(*args, **kwargs) + + def formatException(self, ei): + sio = StringIO() + (typ, val, tb) = ei + + # log the stack above the exception capture point if possible, but + # check that we actually have an f_back attribute to work around + # https://twistedmatrix.com/trac/ticket/9305 + + if tb and hasattr(tb.tb_frame, "f_back"): + sio.write("Capture point (most recent call last):\n") + traceback.print_stack(tb.tb_frame.f_back, None, sio) + + traceback.print_exception(typ, val, tb, None, sio) + s = sio.getvalue() + sio.close() + if s[-1:] == "\n": + s = s[:-1] + return s diff --git a/synapse/logging/utils.py b/synapse/logging/utils.py new file mode 100644 index 0000000000..7df0fa6087 --- /dev/null +++ b/synapse/logging/utils.py @@ -0,0 +1,194 @@ +# -*- coding: utf-8 -*- +# Copyright 2014-2016 OpenMarket Ltd +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + + +import inspect +import logging +import time +from functools import wraps +from inspect import getcallargs + +from six import PY3 + +_TIME_FUNC_ID = 0 + + +def _log_debug_as_f(f, msg, msg_args): + name = f.__module__ + logger = logging.getLogger(name) + + if logger.isEnabledFor(logging.DEBUG): + if PY3: + lineno = f.__code__.co_firstlineno + pathname = f.__code__.co_filename + else: + lineno = f.func_code.co_firstlineno + pathname = f.func_code.co_filename + + record = logging.LogRecord( + name=name, + level=logging.DEBUG, + pathname=pathname, + lineno=lineno, + msg=msg, + args=msg_args, + exc_info=None, + ) + + logger.handle(record) + + +def log_function(f): + """ Function decorator that logs every call to that function. + """ + func_name = f.__name__ + + @wraps(f) + def wrapped(*args, **kwargs): + name = f.__module__ + logger = logging.getLogger(name) + level = logging.DEBUG + + if logger.isEnabledFor(level): + bound_args = getcallargs(f, *args, **kwargs) + + def format(value): + r = str(value) + if len(r) > 50: + r = r[:50] + "..." + return r + + func_args = ["%s=%s" % (k, format(v)) for k, v in bound_args.items()] + + msg_args = {"func_name": func_name, "args": ", ".join(func_args)} + + _log_debug_as_f(f, "Invoked '%(func_name)s' with args: %(args)s", msg_args) + + return f(*args, **kwargs) + + wrapped.__name__ = func_name + return wrapped + + +def time_function(f): + func_name = f.__name__ + + @wraps(f) + def wrapped(*args, **kwargs): + global _TIME_FUNC_ID + id = _TIME_FUNC_ID + _TIME_FUNC_ID += 1 + + start = time.clock() + + try: + _log_debug_as_f(f, "[FUNC START] {%s-%d}", (func_name, id)) + + r = f(*args, **kwargs) + finally: + end = time.clock() + _log_debug_as_f( + f, "[FUNC END] {%s-%d} %.3f sec", (func_name, id, end - start) + ) + + return r + + return wrapped + + +def trace_function(f): + func_name = f.__name__ + linenum = f.func_code.co_firstlineno + pathname = f.func_code.co_filename + + @wraps(f) + def wrapped(*args, **kwargs): + name = f.__module__ + logger = logging.getLogger(name) + level = logging.DEBUG + + s = inspect.currentframe().f_back + + to_print = [ + "\t%s:%s %s. Args: args=%s, kwargs=%s" + % (pathname, linenum, func_name, args, kwargs) + ] + while s: + if True or s.f_globals["__name__"].startswith("synapse"): + filename, lineno, function, _, _ = inspect.getframeinfo(s) + args_string = inspect.formatargvalues(*inspect.getargvalues(s)) + + to_print.append( + "\t%s:%d %s. Args: %s" % (filename, lineno, function, args_string) + ) + + s = s.f_back + + msg = "\nTraceback for %s:\n" % (func_name,) + "\n".join(to_print) + + record = logging.LogRecord( + name=name, + level=level, + pathname=pathname, + lineno=lineno, + msg=msg, + args=None, + exc_info=None, + ) + + logger.handle(record) + + return f(*args, **kwargs) + + wrapped.__name__ = func_name + return wrapped + + +def get_previous_frames(): + s = inspect.currentframe().f_back.f_back + to_return = [] + while s: + if s.f_globals["__name__"].startswith("synapse"): + filename, lineno, function, _, _ = inspect.getframeinfo(s) + args_string = inspect.formatargvalues(*inspect.getargvalues(s)) + + to_return.append( + "{{ %s:%d %s - Args: %s }}" % (filename, lineno, function, args_string) + ) + + s = s.f_back + + return ", ".join(to_return) + + +def get_previous_frame(ignore=[]): + s = inspect.currentframe().f_back.f_back + + while s: + if s.f_globals["__name__"].startswith("synapse"): + if not any(s.f_globals["__name__"].startswith(ig) for ig in ignore): + filename, lineno, function, _, _ = inspect.getframeinfo(s) + args_string = inspect.formatargvalues(*inspect.getargvalues(s)) + + return "{{ %s:%d %s - Args: %s }}" % ( + filename, + lineno, + function, + args_string, + ) + + s = s.f_back + + return None diff --git a/synapse/metrics/background_process_metrics.py b/synapse/metrics/background_process_metrics.py index 167e2c068a..edd6b42db3 100644 --- a/synapse/metrics/background_process_metrics.py +++ b/synapse/metrics/background_process_metrics.py @@ -22,7 +22,7 @@ from prometheus_client.core import REGISTRY, Counter, GaugeMetricFamily from twisted.internet import defer -from synapse.util.logcontext import LoggingContext, PreserveLoggingContext +from synapse.logging.context import LoggingContext, PreserveLoggingContext logger = logging.getLogger(__name__) diff --git a/synapse/notifier.py b/synapse/notifier.py index d398078eed..918ef64897 100644 --- a/synapse/notifier.py +++ b/synapse/notifier.py @@ -23,12 +23,12 @@ from twisted.internet import defer from synapse.api.constants import EventTypes, Membership from synapse.api.errors import AuthError from synapse.handlers.presence import format_user_presence_state +from synapse.logging.context import PreserveLoggingContext +from synapse.logging.utils import log_function from synapse.metrics import LaterGauge from synapse.metrics.background_process_metrics import run_as_background_process from synapse.types import StreamToken from synapse.util.async_helpers import ObservableDeferred, timeout_deferred -from synapse.util.logcontext import PreserveLoggingContext -from synapse.util.logutils import log_function from synapse.util.metrics import Measure from synapse.visibility import filter_events_for_client diff --git a/synapse/push/mailer.py b/synapse/push/mailer.py index 809199fe88..521c6e2cd7 100644 --- a/synapse/push/mailer.py +++ b/synapse/push/mailer.py @@ -29,6 +29,7 @@ from twisted.internet import defer from synapse.api.constants import EventTypes from synapse.api.errors import StoreError +from synapse.logging.context import make_deferred_yieldable from synapse.push.presentable_names import ( calculate_room_name, descriptor_from_member_events, @@ -36,7 +37,6 @@ from synapse.push.presentable_names import ( ) from synapse.types import UserID from synapse.util.async_helpers import concurrently_execute -from synapse.util.logcontext import make_deferred_yieldable from synapse.visibility import filter_events_for_client logger = logging.getLogger(__name__) diff --git a/synapse/replication/tcp/protocol.py b/synapse/replication/tcp/protocol.py index 97efb835ad..5ffdf2675d 100644 --- a/synapse/replication/tcp/protocol.py +++ b/synapse/replication/tcp/protocol.py @@ -62,9 +62,9 @@ from twisted.internet import defer from twisted.protocols.basic import LineOnlyReceiver from twisted.python.failure import Failure +from synapse.logging.context import make_deferred_yieldable, run_in_background from synapse.metrics import LaterGauge from synapse.metrics.background_process_metrics import run_as_background_process -from synapse.util.logcontext import make_deferred_yieldable, run_in_background from synapse.util.stringutils import random_string from .commands import ( diff --git a/synapse/rest/client/transactions.py b/synapse/rest/client/transactions.py index 36404b797d..6da71dc46f 100644 --- a/synapse/rest/client/transactions.py +++ b/synapse/rest/client/transactions.py @@ -17,8 +17,8 @@ to ensure idempotency when performing PUTs using the REST API.""" import logging +from synapse.logging.context import make_deferred_yieldable, run_in_background from synapse.util.async_helpers import ObservableDeferred -from synapse.util.logcontext import make_deferred_yieldable, run_in_background logger = logging.getLogger(__name__) diff --git a/synapse/rest/media/v1/_base.py b/synapse/rest/media/v1/_base.py index 3318638d3e..5fefee4dde 100644 --- a/synapse/rest/media/v1/_base.py +++ b/synapse/rest/media/v1/_base.py @@ -25,7 +25,7 @@ from twisted.protocols.basic import FileSender from synapse.api.errors import Codes, SynapseError, cs_error from synapse.http.server import finish_request, respond_with_json -from synapse.util import logcontext +from synapse.logging.context import make_deferred_yieldable from synapse.util.stringutils import is_ascii logger = logging.getLogger(__name__) @@ -75,9 +75,7 @@ def respond_with_file(request, media_type, file_path, file_size=None, upload_nam add_file_headers(request, media_type, file_size, upload_name) with open(file_path, "rb") as f: - yield logcontext.make_deferred_yieldable( - FileSender().beginFileTransfer(f, request) - ) + yield make_deferred_yieldable(FileSender().beginFileTransfer(f, request)) finish_request(request) else: diff --git a/synapse/rest/media/v1/media_repository.py b/synapse/rest/media/v1/media_repository.py index df3d985a38..65afffbb42 100644 --- a/synapse/rest/media/v1/media_repository.py +++ b/synapse/rest/media/v1/media_repository.py @@ -33,8 +33,8 @@ from synapse.api.errors import ( RequestSendFailed, SynapseError, ) +from synapse.logging.context import defer_to_thread from synapse.metrics.background_process_metrics import run_as_background_process -from synapse.util import logcontext from synapse.util.async_helpers import Linearizer from synapse.util.retryutils import NotRetryingDestination from synapse.util.stringutils import random_string @@ -463,7 +463,7 @@ class MediaRepository(object): ) thumbnailer = Thumbnailer(input_path) - t_byte_source = yield logcontext.defer_to_thread( + t_byte_source = yield defer_to_thread( self.hs.get_reactor(), self._generate_thumbnail, thumbnailer, @@ -511,7 +511,7 @@ class MediaRepository(object): ) thumbnailer = Thumbnailer(input_path) - t_byte_source = yield logcontext.defer_to_thread( + t_byte_source = yield defer_to_thread( self.hs.get_reactor(), self._generate_thumbnail, thumbnailer, @@ -596,7 +596,7 @@ class MediaRepository(object): return if thumbnailer.transpose_method is not None: - m_width, m_height = yield logcontext.defer_to_thread( + m_width, m_height = yield defer_to_thread( self.hs.get_reactor(), thumbnailer.transpose ) @@ -616,11 +616,11 @@ class MediaRepository(object): for (t_width, t_height, t_type), t_method in iteritems(thumbnails): # Generate the thumbnail if t_method == "crop": - t_byte_source = yield logcontext.defer_to_thread( + t_byte_source = yield defer_to_thread( self.hs.get_reactor(), thumbnailer.crop, t_width, t_height, t_type ) elif t_method == "scale": - t_byte_source = yield logcontext.defer_to_thread( + t_byte_source = yield defer_to_thread( self.hs.get_reactor(), thumbnailer.scale, t_width, t_height, t_type ) else: diff --git a/synapse/rest/media/v1/media_storage.py b/synapse/rest/media/v1/media_storage.py index eff86836fb..25e5ac2848 100644 --- a/synapse/rest/media/v1/media_storage.py +++ b/synapse/rest/media/v1/media_storage.py @@ -24,9 +24,8 @@ import six from twisted.internet import defer from twisted.protocols.basic import FileSender -from synapse.util import logcontext +from synapse.logging.context import defer_to_thread, make_deferred_yieldable from synapse.util.file_consumer import BackgroundFileConsumer -from synapse.util.logcontext import make_deferred_yieldable from ._base import Responder @@ -65,7 +64,7 @@ class MediaStorage(object): with self.store_into_file(file_info) as (f, fname, finish_cb): # Write to the main repository - yield logcontext.defer_to_thread( + yield defer_to_thread( self.hs.get_reactor(), _write_file_synchronously, source, f ) yield finish_cb() diff --git a/synapse/rest/media/v1/preview_url_resource.py b/synapse/rest/media/v1/preview_url_resource.py index 053346fb86..5871737bfd 100644 --- a/synapse/rest/media/v1/preview_url_resource.py +++ b/synapse/rest/media/v1/preview_url_resource.py @@ -42,11 +42,11 @@ from synapse.http.server import ( wrap_json_request_handler, ) from synapse.http.servlet import parse_integer, parse_string +from synapse.logging.context import make_deferred_yieldable, run_in_background from synapse.metrics.background_process_metrics import run_as_background_process from synapse.rest.media.v1._base import get_filename_from_headers from synapse.util.async_helpers import ObservableDeferred from synapse.util.caches.expiringcache import ExpiringCache -from synapse.util.logcontext import make_deferred_yieldable, run_in_background from synapse.util.stringutils import random_string from ._base import FileInfo diff --git a/synapse/rest/media/v1/storage_provider.py b/synapse/rest/media/v1/storage_provider.py index 359b45ebfc..e8f559acc1 100644 --- a/synapse/rest/media/v1/storage_provider.py +++ b/synapse/rest/media/v1/storage_provider.py @@ -20,8 +20,7 @@ import shutil from twisted.internet import defer from synapse.config._base import Config -from synapse.util import logcontext -from synapse.util.logcontext import run_in_background +from synapse.logging.context import defer_to_thread, run_in_background from .media_storage import FileResponder @@ -125,7 +124,7 @@ class FileStorageProviderBackend(StorageProvider): if not os.path.exists(dirname): os.makedirs(dirname) - return logcontext.defer_to_thread( + return defer_to_thread( self.hs.get_reactor(), shutil.copyfile, primary_fname, backup_fname ) diff --git a/synapse/state/__init__.py b/synapse/state/__init__.py index 1b454a56a1..9f708fa205 100644 --- a/synapse/state/__init__.py +++ b/synapse/state/__init__.py @@ -28,11 +28,11 @@ from twisted.internet import defer from synapse.api.constants import EventTypes from synapse.api.room_versions import KNOWN_ROOM_VERSIONS, StateResolutionVersions from synapse.events.snapshot import EventContext +from synapse.logging.utils import log_function from synapse.state import v1, v2 from synapse.util.async_helpers import Linearizer from synapse.util.caches import get_cache_factor_for from synapse.util.caches.expiringcache import ExpiringCache -from synapse.util.logutils import log_function from synapse.util.metrics import Measure logger = logging.getLogger(__name__) diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py index 29589853c6..2f940dbae6 100644 --- a/synapse/storage/_base.py +++ b/synapse/storage/_base.py @@ -30,12 +30,12 @@ from prometheus_client import Histogram from twisted.internet import defer from synapse.api.errors import StoreError +from synapse.logging.context import LoggingContext, PreserveLoggingContext from synapse.metrics.background_process_metrics import run_as_background_process from synapse.storage.engines import PostgresEngine, Sqlite3Engine from synapse.types import get_domain_from_id from synapse.util import batch_iter from synapse.util.caches.descriptors import Cache -from synapse.util.logcontext import LoggingContext, PreserveLoggingContext from synapse.util.stringutils import exception_to_unicode # import a function which will return a monotonic time, in seconds diff --git a/synapse/storage/events.py b/synapse/storage/events.py index 86f8485704..b486ca50eb 100644 --- a/synapse/storage/events.py +++ b/synapse/storage/events.py @@ -33,6 +33,8 @@ from synapse.api.constants import EventTypes from synapse.api.errors import SynapseError from synapse.events import EventBase # noqa: F401 from synapse.events.snapshot import EventContext # noqa: F401 +from synapse.logging.context import PreserveLoggingContext, make_deferred_yieldable +from synapse.logging.utils import log_function from synapse.metrics import BucketCollector from synapse.metrics.background_process_metrics import run_as_background_process from synapse.state import StateResolutionStore @@ -45,8 +47,6 @@ from synapse.util import batch_iter from synapse.util.async_helpers import ObservableDeferred from synapse.util.caches.descriptors import cached, cachedInlineCallbacks from synapse.util.frozenutils import frozendict_json_encoder -from synapse.util.logcontext import PreserveLoggingContext, make_deferred_yieldable -from synapse.util.logutils import log_function from synapse.util.metrics import Measure logger = logging.getLogger(__name__) diff --git a/synapse/storage/events_worker.py b/synapse/storage/events_worker.py index 6d680d405a..09db872511 100644 --- a/synapse/storage/events_worker.py +++ b/synapse/storage/events_worker.py @@ -29,14 +29,14 @@ from synapse.api.room_versions import EventFormatVersions from synapse.events import FrozenEvent, event_type_from_format_version # noqa: F401 from synapse.events.snapshot import EventContext # noqa: F401 from synapse.events.utils import prune_event -from synapse.metrics.background_process_metrics import run_as_background_process -from synapse.types import get_domain_from_id -from synapse.util.logcontext import ( +from synapse.logging.context import ( LoggingContext, PreserveLoggingContext, make_deferred_yieldable, run_in_background, ) +from synapse.metrics.background_process_metrics import run_as_background_process +from synapse.types import get_domain_from_id from synapse.util.metrics import Measure from ._base import SQLBaseStore diff --git a/synapse/storage/stream.py b/synapse/storage/stream.py index d9482a3843..386a9dbe14 100644 --- a/synapse/storage/stream.py +++ b/synapse/storage/stream.py @@ -41,12 +41,12 @@ from six.moves import range from twisted.internet import defer +from synapse.logging.context import make_deferred_yieldable, run_in_background from synapse.storage._base import SQLBaseStore from synapse.storage.engines import PostgresEngine from synapse.storage.events_worker import EventsWorkerStore from synapse.types import RoomStreamToken from synapse.util.caches.stream_change_cache import StreamChangeCache -from synapse.util.logcontext import make_deferred_yieldable, run_in_background logger = logging.getLogger(__name__) diff --git a/synapse/util/__init__.py b/synapse/util/__init__.py index 954e32fb2a..c6d2ce4404 100644 --- a/synapse/util/__init__.py +++ b/synapse/util/__init__.py @@ -21,10 +21,14 @@ import attr from twisted.internet import defer, task -from synapse.util.logcontext import PreserveLoggingContext +from synapse.logging import context, formatter logger = logging.getLogger(__name__) +# Compatibility alias, for existing logconfigs. +logcontext = context +logformatter = formatter + def unwrapFirstError(failure): # defer.gatherResults and DeferredLists wrap failures. @@ -46,7 +50,7 @@ class Clock(object): @defer.inlineCallbacks def sleep(self, seconds): d = defer.Deferred() - with PreserveLoggingContext(): + with context.PreserveLoggingContext(): self._reactor.callLater(seconds, d.callback, seconds) res = yield d defer.returnValue(res) @@ -91,10 +95,10 @@ class Clock(object): """ def wrapped_callback(*args, **kwargs): - with PreserveLoggingContext(): + with context.PreserveLoggingContext(): callback(*args, **kwargs) - with PreserveLoggingContext(): + with context.PreserveLoggingContext(): return self._reactor.callLater(delay, wrapped_callback, *args, **kwargs) def cancel_call_later(self, timer, ignore_errs=False): diff --git a/synapse/util/async_helpers.py b/synapse/util/async_helpers.py index 7757b8708a..58a6b8764f 100644 --- a/synapse/util/async_helpers.py +++ b/synapse/util/async_helpers.py @@ -23,13 +23,12 @@ from twisted.internet import defer from twisted.internet.defer import CancelledError from twisted.python import failure -from synapse.util import Clock, logcontext, unwrapFirstError - -from .logcontext import ( +from synapse.logging.context import ( PreserveLoggingContext, make_deferred_yieldable, run_in_background, ) +from synapse.util import Clock, unwrapFirstError logger = logging.getLogger(__name__) @@ -153,7 +152,7 @@ def concurrently_execute(func, args, limit): except StopIteration: pass - return logcontext.make_deferred_yieldable( + return make_deferred_yieldable( defer.gatherResults( [run_in_background(_concurrently_execute_inner) for _ in range(limit)], consumeErrors=True, @@ -174,7 +173,7 @@ def yieldable_gather_results(func, iter, *args, **kwargs): Deferred[list]: Resolved when all functions have been invoked, or errors if one of the function calls fails. """ - return logcontext.make_deferred_yieldable( + return make_deferred_yieldable( defer.gatherResults( [run_in_background(func, item, *args, **kwargs) for item in iter], consumeErrors=True, diff --git a/synapse/util/caches/descriptors.py b/synapse/util/caches/descriptors.py index d2f25063aa..675db2f448 100644 --- a/synapse/util/caches/descriptors.py +++ b/synapse/util/caches/descriptors.py @@ -24,7 +24,8 @@ from six import itervalues, string_types from twisted.internet import defer -from synapse.util import logcontext, unwrapFirstError +from synapse.logging.context import make_deferred_yieldable, preserve_fn +from synapse.util import unwrapFirstError from synapse.util.async_helpers import ObservableDeferred from synapse.util.caches import get_cache_factor_for from synapse.util.caches.lrucache import LruCache @@ -388,7 +389,7 @@ class CacheDescriptor(_CacheDescriptorBase): except KeyError: ret = defer.maybeDeferred( - logcontext.preserve_fn(self.function_to_call), obj, *args, **kwargs + preserve_fn(self.function_to_call), obj, *args, **kwargs ) def onErr(f): @@ -408,7 +409,7 @@ class CacheDescriptor(_CacheDescriptorBase): observer = result_d.observe() if isinstance(observer, defer.Deferred): - return logcontext.make_deferred_yieldable(observer) + return make_deferred_yieldable(observer) else: return observer @@ -563,7 +564,7 @@ class CacheListDescriptor(_CacheDescriptorBase): cached_defers.append( defer.maybeDeferred( - logcontext.preserve_fn(self.function_to_call), **args_to_call + preserve_fn(self.function_to_call), **args_to_call ).addCallbacks(complete_all, errback) ) @@ -571,7 +572,7 @@ class CacheListDescriptor(_CacheDescriptorBase): d = defer.gatherResults(cached_defers, consumeErrors=True).addCallbacks( lambda _: results, unwrapFirstError ) - return logcontext.make_deferred_yieldable(d) + return make_deferred_yieldable(d) else: return results diff --git a/synapse/util/caches/response_cache.py b/synapse/util/caches/response_cache.py index cbe54d45dd..d6908e169d 100644 --- a/synapse/util/caches/response_cache.py +++ b/synapse/util/caches/response_cache.py @@ -16,9 +16,9 @@ import logging from twisted.internet import defer +from synapse.logging.context import make_deferred_yieldable, run_in_background from synapse.util.async_helpers import ObservableDeferred from synapse.util.caches import register_cache -from synapse.util.logcontext import make_deferred_yieldable, run_in_background logger = logging.getLogger(__name__) @@ -78,7 +78,7 @@ class ResponseCache(object): *deferred* should run its callbacks in the sentinel logcontext (ie, you should wrap normal synapse deferreds with - logcontext.run_in_background). + synapse.logging.context.run_in_background). Can return either a new Deferred (which also doesn't follow the synapse logcontext rules), or, if *deferred* was already complete, the actual diff --git a/synapse/util/distributor.py b/synapse/util/distributor.py index 5a79db821c..45af8d3eeb 100644 --- a/synapse/util/distributor.py +++ b/synapse/util/distributor.py @@ -17,8 +17,8 @@ import logging from twisted.internet import defer +from synapse.logging.context import make_deferred_yieldable, run_in_background from synapse.metrics.background_process_metrics import run_as_background_process -from synapse.util.logcontext import make_deferred_yieldable, run_in_background logger = logging.getLogger(__name__) diff --git a/synapse/util/file_consumer.py b/synapse/util/file_consumer.py index 629ed44149..8b17d1c8b8 100644 --- a/synapse/util/file_consumer.py +++ b/synapse/util/file_consumer.py @@ -17,7 +17,7 @@ from six.moves import queue from twisted.internet import threads -from synapse.util.logcontext import make_deferred_yieldable, run_in_background +from synapse.logging.context import make_deferred_yieldable, run_in_background class BackgroundFileConsumer(object): diff --git a/synapse/util/logcontext.py b/synapse/util/logcontext.py deleted file mode 100644 index 30dfa1d6b2..0000000000 --- a/synapse/util/logcontext.py +++ /dev/null @@ -1,693 +0,0 @@ -# Copyright 2014-2016 OpenMarket Ltd -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -""" Thread-local-alike tracking of log contexts within synapse - -This module provides objects and utilities for tracking contexts through -synapse code, so that log lines can include a request identifier, and so that -CPU and database activity can be accounted for against the request that caused -them. - -See doc/log_contexts.rst for details on how this works. -""" - -import logging -import threading -import types - -from twisted.internet import defer, threads - -logger = logging.getLogger(__name__) - -try: - import resource - - # Python doesn't ship with a definition of RUSAGE_THREAD but it's defined - # to be 1 on linux so we hard code it. - RUSAGE_THREAD = 1 - - # If the system doesn't support RUSAGE_THREAD then this should throw an - # exception. - resource.getrusage(RUSAGE_THREAD) - - def get_thread_resource_usage(): - return resource.getrusage(RUSAGE_THREAD) - - -except Exception: - # If the system doesn't support resource.getrusage(RUSAGE_THREAD) then we - # won't track resource usage by returning None. - def get_thread_resource_usage(): - return None - - -# get an id for the current thread. -# -# threading.get_ident doesn't actually return an OS-level tid, and annoyingly, -# on Linux it actually returns the same value either side of a fork() call. However -# we only fork in one place, so it's not worth the hoop-jumping to get a real tid. -# -get_thread_id = threading.get_ident - - -class ContextResourceUsage(object): - """Object for tracking the resources used by a log context - - Attributes: - ru_utime (float): user CPU time (in seconds) - ru_stime (float): system CPU time (in seconds) - db_txn_count (int): number of database transactions done - db_sched_duration_sec (float): amount of time spent waiting for a - database connection - db_txn_duration_sec (float): amount of time spent doing database - transactions (excluding scheduling time) - evt_db_fetch_count (int): number of events requested from the database - """ - - __slots__ = [ - "ru_stime", - "ru_utime", - "db_txn_count", - "db_txn_duration_sec", - "db_sched_duration_sec", - "evt_db_fetch_count", - ] - - def __init__(self, copy_from=None): - """Create a new ContextResourceUsage - - Args: - copy_from (ContextResourceUsage|None): if not None, an object to - copy stats from - """ - if copy_from is None: - self.reset() - else: - self.ru_utime = copy_from.ru_utime - self.ru_stime = copy_from.ru_stime - self.db_txn_count = copy_from.db_txn_count - - self.db_txn_duration_sec = copy_from.db_txn_duration_sec - self.db_sched_duration_sec = copy_from.db_sched_duration_sec - self.evt_db_fetch_count = copy_from.evt_db_fetch_count - - def copy(self): - return ContextResourceUsage(copy_from=self) - - def reset(self): - self.ru_stime = 0.0 - self.ru_utime = 0.0 - self.db_txn_count = 0 - - self.db_txn_duration_sec = 0 - self.db_sched_duration_sec = 0 - self.evt_db_fetch_count = 0 - - def __repr__(self): - return ( - "" - ) % ( - self.ru_stime, - self.ru_utime, - self.db_txn_count, - self.db_txn_duration_sec, - self.db_sched_duration_sec, - self.evt_db_fetch_count, - ) - - def __iadd__(self, other): - """Add another ContextResourceUsage's stats to this one's. - - Args: - other (ContextResourceUsage): the other resource usage object - """ - self.ru_utime += other.ru_utime - self.ru_stime += other.ru_stime - self.db_txn_count += other.db_txn_count - self.db_txn_duration_sec += other.db_txn_duration_sec - self.db_sched_duration_sec += other.db_sched_duration_sec - self.evt_db_fetch_count += other.evt_db_fetch_count - return self - - def __isub__(self, other): - self.ru_utime -= other.ru_utime - self.ru_stime -= other.ru_stime - self.db_txn_count -= other.db_txn_count - self.db_txn_duration_sec -= other.db_txn_duration_sec - self.db_sched_duration_sec -= other.db_sched_duration_sec - self.evt_db_fetch_count -= other.evt_db_fetch_count - return self - - def __add__(self, other): - res = ContextResourceUsage(copy_from=self) - res += other - return res - - def __sub__(self, other): - res = ContextResourceUsage(copy_from=self) - res -= other - return res - - -class LoggingContext(object): - """Additional context for log formatting. Contexts are scoped within a - "with" block. - - If a parent is given when creating a new context, then: - - logging fields are copied from the parent to the new context on entry - - when the new context exits, the cpu usage stats are copied from the - child to the parent - - Args: - name (str): Name for the context for debugging. - parent_context (LoggingContext|None): The parent of the new context - """ - - __slots__ = [ - "previous_context", - "name", - "parent_context", - "_resource_usage", - "usage_start", - "main_thread", - "alive", - "request", - "tag", - ] - - thread_local = threading.local() - - class Sentinel(object): - """Sentinel to represent the root context""" - - __slots__ = [] - - def __str__(self): - return "sentinel" - - def copy_to(self, record): - pass - - def start(self): - pass - - def stop(self): - pass - - def add_database_transaction(self, duration_sec): - pass - - def add_database_scheduled(self, sched_sec): - pass - - def record_event_fetch(self, event_count): - pass - - def __nonzero__(self): - return False - - __bool__ = __nonzero__ # python3 - - sentinel = Sentinel() - - def __init__(self, name=None, parent_context=None, request=None): - self.previous_context = LoggingContext.current_context() - self.name = name - - # track the resources used by this context so far - self._resource_usage = ContextResourceUsage() - - # If alive has the thread resource usage when the logcontext last - # became active. - self.usage_start = None - - self.main_thread = get_thread_id() - self.request = None - self.tag = "" - self.alive = True - - self.parent_context = parent_context - - if self.parent_context is not None: - self.parent_context.copy_to(self) - - if request is not None: - # the request param overrides the request from the parent context - self.request = request - - def __str__(self): - if self.request: - return str(self.request) - return "%s@%x" % (self.name, id(self)) - - @classmethod - def current_context(cls): - """Get the current logging context from thread local storage - - Returns: - LoggingContext: the current logging context - """ - return getattr(cls.thread_local, "current_context", cls.sentinel) - - @classmethod - def set_current_context(cls, context): - """Set the current logging context in thread local storage - Args: - context(LoggingContext): The context to activate. - Returns: - The context that was previously active - """ - current = cls.current_context() - - if current is not context: - current.stop() - cls.thread_local.current_context = context - context.start() - return current - - def __enter__(self): - """Enters this logging context into thread local storage""" - old_context = self.set_current_context(self) - if self.previous_context != old_context: - logger.warn( - "Expected previous context %r, found %r", - self.previous_context, - old_context, - ) - self.alive = True - - return self - - def __exit__(self, type, value, traceback): - """Restore the logging context in thread local storage to the state it - was before this context was entered. - Returns: - None to avoid suppressing any exceptions that were thrown. - """ - current = self.set_current_context(self.previous_context) - if current is not self: - if current is self.sentinel: - logger.warning("Expected logging context %s was lost", self) - else: - logger.warning( - "Expected logging context %s but found %s", self, current - ) - self.previous_context = None - self.alive = False - - # if we have a parent, pass our CPU usage stats on - if self.parent_context is not None and hasattr( - self.parent_context, "_resource_usage" - ): - self.parent_context._resource_usage += self._resource_usage - - # reset them in case we get entered again - self._resource_usage.reset() - - def copy_to(self, record): - """Copy logging fields from this context to a log record or - another LoggingContext - """ - - # 'request' is the only field we currently use in the logger, so that's - # all we need to copy - record.request = self.request - - def start(self): - if get_thread_id() != self.main_thread: - logger.warning("Started logcontext %s on different thread", self) - return - - # If we haven't already started record the thread resource usage so - # far - if not self.usage_start: - self.usage_start = get_thread_resource_usage() - - def stop(self): - if get_thread_id() != self.main_thread: - logger.warning("Stopped logcontext %s on different thread", self) - return - - # When we stop, let's record the cpu used since we started - if not self.usage_start: - logger.warning("Called stop on logcontext %s without calling start", self) - return - - utime_delta, stime_delta = self._get_cputime() - self._resource_usage.ru_utime += utime_delta - self._resource_usage.ru_stime += stime_delta - - self.usage_start = None - - def get_resource_usage(self): - """Get resources used by this logcontext so far. - - Returns: - ContextResourceUsage: a *copy* of the object tracking resource - usage so far - """ - # we always return a copy, for consistency - res = self._resource_usage.copy() - - # If we are on the correct thread and we're currently running then we - # can include resource usage so far. - is_main_thread = get_thread_id() == self.main_thread - if self.alive and self.usage_start and is_main_thread: - utime_delta, stime_delta = self._get_cputime() - res.ru_utime += utime_delta - res.ru_stime += stime_delta - - return res - - def _get_cputime(self): - """Get the cpu usage time so far - - Returns: Tuple[float, float]: seconds in user mode, seconds in system mode - """ - current = get_thread_resource_usage() - - utime_delta = current.ru_utime - self.usage_start.ru_utime - stime_delta = current.ru_stime - self.usage_start.ru_stime - - # sanity check - if utime_delta < 0: - logger.error( - "utime went backwards! %f < %f", - current.ru_utime, - self.usage_start.ru_utime, - ) - utime_delta = 0 - - if stime_delta < 0: - logger.error( - "stime went backwards! %f < %f", - current.ru_stime, - self.usage_start.ru_stime, - ) - stime_delta = 0 - - return utime_delta, stime_delta - - def add_database_transaction(self, duration_sec): - if duration_sec < 0: - raise ValueError("DB txn time can only be non-negative") - self._resource_usage.db_txn_count += 1 - self._resource_usage.db_txn_duration_sec += duration_sec - - def add_database_scheduled(self, sched_sec): - """Record a use of the database pool - - Args: - sched_sec (float): number of seconds it took us to get a - connection - """ - if sched_sec < 0: - raise ValueError("DB scheduling time can only be non-negative") - self._resource_usage.db_sched_duration_sec += sched_sec - - def record_event_fetch(self, event_count): - """Record a number of events being fetched from the db - - Args: - event_count (int): number of events being fetched - """ - self._resource_usage.evt_db_fetch_count += event_count - - -class LoggingContextFilter(logging.Filter): - """Logging filter that adds values from the current logging context to each - record. - Args: - **defaults: Default values to avoid formatters complaining about - missing fields - """ - - def __init__(self, **defaults): - self.defaults = defaults - - def filter(self, record): - """Add each fields from the logging contexts to the record. - Returns: - True to include the record in the log output. - """ - context = LoggingContext.current_context() - for key, value in self.defaults.items(): - setattr(record, key, value) - - # context should never be None, but if it somehow ends up being, then - # we end up in a death spiral of infinite loops, so let's check, for - # robustness' sake. - if context is not None: - context.copy_to(record) - - return True - - -class PreserveLoggingContext(object): - """Captures the current logging context and restores it when the scope is - exited. Used to restore the context after a function using - @defer.inlineCallbacks is resumed by a callback from the reactor.""" - - __slots__ = ["current_context", "new_context", "has_parent"] - - def __init__(self, new_context=None): - if new_context is None: - new_context = LoggingContext.sentinel - self.new_context = new_context - - def __enter__(self): - """Captures the current logging context""" - self.current_context = LoggingContext.set_current_context(self.new_context) - - if self.current_context: - self.has_parent = self.current_context.previous_context is not None - if not self.current_context.alive: - logger.debug("Entering dead context: %s", self.current_context) - - def __exit__(self, type, value, traceback): - """Restores the current logging context""" - context = LoggingContext.set_current_context(self.current_context) - - if context != self.new_context: - if context is LoggingContext.sentinel: - logger.warning("Expected logging context %s was lost", self.new_context) - else: - logger.warning( - "Expected logging context %s but found %s", - self.new_context, - context, - ) - - if self.current_context is not LoggingContext.sentinel: - if not self.current_context.alive: - logger.debug("Restoring dead context: %s", self.current_context) - - -def nested_logging_context(suffix, parent_context=None): - """Creates a new logging context as a child of another. - - The nested logging context will have a 'request' made up of the parent context's - request, plus the given suffix. - - CPU/db usage stats will be added to the parent context's on exit. - - Normal usage looks like: - - with nested_logging_context(suffix): - # ... do stuff - - Args: - suffix (str): suffix to add to the parent context's 'request'. - parent_context (LoggingContext|None): parent context. Will use the current context - if None. - - Returns: - LoggingContext: new logging context. - """ - if parent_context is None: - parent_context = LoggingContext.current_context() - return LoggingContext( - parent_context=parent_context, request=parent_context.request + "-" + suffix - ) - - -def preserve_fn(f): - """Function decorator which wraps the function with run_in_background""" - - def g(*args, **kwargs): - return run_in_background(f, *args, **kwargs) - - return g - - -def run_in_background(f, *args, **kwargs): - """Calls a function, ensuring that the current context is restored after - return from the function, and that the sentinel context is set once the - deferred returned by the function completes. - - Useful for wrapping functions that return a deferred or coroutine, which you don't - yield or await on (for instance because you want to pass it to - deferred.gatherResults()). - - Note that if you completely discard the result, you should make sure that - `f` doesn't raise any deferred exceptions, otherwise a scary-looking - CRITICAL error about an unhandled error will be logged without much - indication about where it came from. - """ - current = LoggingContext.current_context() - try: - res = f(*args, **kwargs) - except: # noqa: E722 - # the assumption here is that the caller doesn't want to be disturbed - # by synchronous exceptions, so let's turn them into Failures. - return defer.fail() - - if isinstance(res, types.CoroutineType): - res = defer.ensureDeferred(res) - - if not isinstance(res, defer.Deferred): - return res - - if res.called and not res.paused: - # The function should have maintained the logcontext, so we can - # optimise out the messing about - return res - - # The function may have reset the context before returning, so - # we need to restore it now. - ctx = LoggingContext.set_current_context(current) - - # The original context will be restored when the deferred - # completes, but there is nothing waiting for it, so it will - # get leaked into the reactor or some other function which - # wasn't expecting it. We therefore need to reset the context - # here. - # - # (If this feels asymmetric, consider it this way: we are - # effectively forking a new thread of execution. We are - # probably currently within a ``with LoggingContext()`` block, - # which is supposed to have a single entry and exit point. But - # by spawning off another deferred, we are effectively - # adding a new exit point.) - res.addBoth(_set_context_cb, ctx) - return res - - -def make_deferred_yieldable(deferred): - """Given a deferred, make it follow the Synapse logcontext rules: - - If the deferred has completed (or is not actually a Deferred), essentially - does nothing (just returns another completed deferred with the - result/failure). - - If the deferred has not yet completed, resets the logcontext before - returning a deferred. Then, when the deferred completes, restores the - current logcontext before running callbacks/errbacks. - - (This is more-or-less the opposite operation to run_in_background.) - """ - if not isinstance(deferred, defer.Deferred): - return deferred - - if deferred.called and not deferred.paused: - # it looks like this deferred is ready to run any callbacks we give it - # immediately. We may as well optimise out the logcontext faffery. - return deferred - - # ok, we can't be sure that a yield won't block, so let's reset the - # logcontext, and add a callback to the deferred to restore it. - prev_context = LoggingContext.set_current_context(LoggingContext.sentinel) - deferred.addBoth(_set_context_cb, prev_context) - return deferred - - -def _set_context_cb(result, context): - """A callback function which just sets the logging context""" - LoggingContext.set_current_context(context) - return result - - -def defer_to_thread(reactor, f, *args, **kwargs): - """ - Calls the function `f` using a thread from the reactor's default threadpool and - returns the result as a Deferred. - - Creates a new logcontext for `f`, which is created as a child of the current - logcontext (so its CPU usage metrics will get attributed to the current - logcontext). `f` should preserve the logcontext it is given. - - The result deferred follows the Synapse logcontext rules: you should `yield` - on it. - - Args: - reactor (twisted.internet.base.ReactorBase): The reactor in whose main thread - the Deferred will be invoked, and whose threadpool we should use for the - function. - - Normally this will be hs.get_reactor(). - - f (callable): The function to call. - - args: positional arguments to pass to f. - - kwargs: keyword arguments to pass to f. - - Returns: - Deferred: A Deferred which fires a callback with the result of `f`, or an - errback if `f` throws an exception. - """ - return defer_to_threadpool(reactor, reactor.getThreadPool(), f, *args, **kwargs) - - -def defer_to_threadpool(reactor, threadpool, f, *args, **kwargs): - """ - A wrapper for twisted.internet.threads.deferToThreadpool, which handles - logcontexts correctly. - - Calls the function `f` using a thread from the given threadpool and returns - the result as a Deferred. - - Creates a new logcontext for `f`, which is created as a child of the current - logcontext (so its CPU usage metrics will get attributed to the current - logcontext). `f` should preserve the logcontext it is given. - - The result deferred follows the Synapse logcontext rules: you should `yield` - on it. - - Args: - reactor (twisted.internet.base.ReactorBase): The reactor in whose main thread - the Deferred will be invoked. Normally this will be hs.get_reactor(). - - threadpool (twisted.python.threadpool.ThreadPool): The threadpool to use for - running `f`. Normally this will be hs.get_reactor().getThreadPool(). - - f (callable): The function to call. - - args: positional arguments to pass to f. - - kwargs: keyword arguments to pass to f. - - Returns: - Deferred: A Deferred which fires a callback with the result of `f`, or an - errback if `f` throws an exception. - """ - logcontext = LoggingContext.current_context() - - def g(): - with LoggingContext(parent_context=logcontext): - return f(*args, **kwargs) - - return make_deferred_yieldable(threads.deferToThreadPool(reactor, threadpool, g)) diff --git a/synapse/util/logformatter.py b/synapse/util/logformatter.py deleted file mode 100644 index fbf570c756..0000000000 --- a/synapse/util/logformatter.py +++ /dev/null @@ -1,53 +0,0 @@ -# -*- coding: utf-8 -*- -# Copyright 2017 New Vector Ltd -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - - -import logging -import traceback - -from six import StringIO - - -class LogFormatter(logging.Formatter): - """Log formatter which gives more detail for exceptions - - This is the same as the standard log formatter, except that when logging - exceptions [typically via log.foo("msg", exc_info=1)], it prints the - sequence that led up to the point at which the exception was caught. - (Normally only stack frames between the point the exception was raised and - where it was caught are logged). - """ - - def __init__(self, *args, **kwargs): - super(LogFormatter, self).__init__(*args, **kwargs) - - def formatException(self, ei): - sio = StringIO() - (typ, val, tb) = ei - - # log the stack above the exception capture point if possible, but - # check that we actually have an f_back attribute to work around - # https://twistedmatrix.com/trac/ticket/9305 - - if tb and hasattr(tb.tb_frame, "f_back"): - sio.write("Capture point (most recent call last):\n") - traceback.print_stack(tb.tb_frame.f_back, None, sio) - - traceback.print_exception(typ, val, tb, None, sio) - s = sio.getvalue() - sio.close() - if s[-1:] == "\n": - s = s[:-1] - return s diff --git a/synapse/util/logutils.py b/synapse/util/logutils.py deleted file mode 100644 index 7df0fa6087..0000000000 --- a/synapse/util/logutils.py +++ /dev/null @@ -1,194 +0,0 @@ -# -*- coding: utf-8 -*- -# Copyright 2014-2016 OpenMarket Ltd -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - - -import inspect -import logging -import time -from functools import wraps -from inspect import getcallargs - -from six import PY3 - -_TIME_FUNC_ID = 0 - - -def _log_debug_as_f(f, msg, msg_args): - name = f.__module__ - logger = logging.getLogger(name) - - if logger.isEnabledFor(logging.DEBUG): - if PY3: - lineno = f.__code__.co_firstlineno - pathname = f.__code__.co_filename - else: - lineno = f.func_code.co_firstlineno - pathname = f.func_code.co_filename - - record = logging.LogRecord( - name=name, - level=logging.DEBUG, - pathname=pathname, - lineno=lineno, - msg=msg, - args=msg_args, - exc_info=None, - ) - - logger.handle(record) - - -def log_function(f): - """ Function decorator that logs every call to that function. - """ - func_name = f.__name__ - - @wraps(f) - def wrapped(*args, **kwargs): - name = f.__module__ - logger = logging.getLogger(name) - level = logging.DEBUG - - if logger.isEnabledFor(level): - bound_args = getcallargs(f, *args, **kwargs) - - def format(value): - r = str(value) - if len(r) > 50: - r = r[:50] + "..." - return r - - func_args = ["%s=%s" % (k, format(v)) for k, v in bound_args.items()] - - msg_args = {"func_name": func_name, "args": ", ".join(func_args)} - - _log_debug_as_f(f, "Invoked '%(func_name)s' with args: %(args)s", msg_args) - - return f(*args, **kwargs) - - wrapped.__name__ = func_name - return wrapped - - -def time_function(f): - func_name = f.__name__ - - @wraps(f) - def wrapped(*args, **kwargs): - global _TIME_FUNC_ID - id = _TIME_FUNC_ID - _TIME_FUNC_ID += 1 - - start = time.clock() - - try: - _log_debug_as_f(f, "[FUNC START] {%s-%d}", (func_name, id)) - - r = f(*args, **kwargs) - finally: - end = time.clock() - _log_debug_as_f( - f, "[FUNC END] {%s-%d} %.3f sec", (func_name, id, end - start) - ) - - return r - - return wrapped - - -def trace_function(f): - func_name = f.__name__ - linenum = f.func_code.co_firstlineno - pathname = f.func_code.co_filename - - @wraps(f) - def wrapped(*args, **kwargs): - name = f.__module__ - logger = logging.getLogger(name) - level = logging.DEBUG - - s = inspect.currentframe().f_back - - to_print = [ - "\t%s:%s %s. Args: args=%s, kwargs=%s" - % (pathname, linenum, func_name, args, kwargs) - ] - while s: - if True or s.f_globals["__name__"].startswith("synapse"): - filename, lineno, function, _, _ = inspect.getframeinfo(s) - args_string = inspect.formatargvalues(*inspect.getargvalues(s)) - - to_print.append( - "\t%s:%d %s. Args: %s" % (filename, lineno, function, args_string) - ) - - s = s.f_back - - msg = "\nTraceback for %s:\n" % (func_name,) + "\n".join(to_print) - - record = logging.LogRecord( - name=name, - level=level, - pathname=pathname, - lineno=lineno, - msg=msg, - args=None, - exc_info=None, - ) - - logger.handle(record) - - return f(*args, **kwargs) - - wrapped.__name__ = func_name - return wrapped - - -def get_previous_frames(): - s = inspect.currentframe().f_back.f_back - to_return = [] - while s: - if s.f_globals["__name__"].startswith("synapse"): - filename, lineno, function, _, _ = inspect.getframeinfo(s) - args_string = inspect.formatargvalues(*inspect.getargvalues(s)) - - to_return.append( - "{{ %s:%d %s - Args: %s }}" % (filename, lineno, function, args_string) - ) - - s = s.f_back - - return ", ".join(to_return) - - -def get_previous_frame(ignore=[]): - s = inspect.currentframe().f_back.f_back - - while s: - if s.f_globals["__name__"].startswith("synapse"): - if not any(s.f_globals["__name__"].startswith(ig) for ig in ignore): - filename, lineno, function, _, _ = inspect.getframeinfo(s) - args_string = inspect.formatargvalues(*inspect.getargvalues(s)) - - return "{{ %s:%d %s - Args: %s }}" % ( - filename, - lineno, - function, - args_string, - ) - - s = s.f_back - - return None diff --git a/synapse/util/metrics.py b/synapse/util/metrics.py index 01284d3cf8..c30b6de19c 100644 --- a/synapse/util/metrics.py +++ b/synapse/util/metrics.py @@ -20,8 +20,8 @@ from prometheus_client import Counter from twisted.internet import defer +from synapse.logging.context import LoggingContext from synapse.metrics import InFlightGauge -from synapse.util.logcontext import LoggingContext logger = logging.getLogger(__name__) diff --git a/synapse/util/ratelimitutils.py b/synapse/util/ratelimitutils.py index 06defa8199..27bceac00e 100644 --- a/synapse/util/ratelimitutils.py +++ b/synapse/util/ratelimitutils.py @@ -20,7 +20,7 @@ import logging from twisted.internet import defer from synapse.api.errors import LimitExceededError -from synapse.util.logcontext import ( +from synapse.logging.context import ( PreserveLoggingContext, make_deferred_yieldable, run_in_background, diff --git a/synapse/util/retryutils.py b/synapse/util/retryutils.py index 1a77456498..d8d0ceae51 100644 --- a/synapse/util/retryutils.py +++ b/synapse/util/retryutils.py @@ -17,7 +17,7 @@ import random from twisted.internet import defer -import synapse.util.logcontext +import synapse.logging.context from synapse.api.errors import CodeMessageException logger = logging.getLogger(__name__) @@ -225,4 +225,4 @@ class RetryDestinationLimiter(object): logger.exception("Failed to store destination_retry_timings") # we deliberately do this in the background. - synapse.util.logcontext.run_in_background(store_retry_timings) + synapse.logging.context.run_in_background(store_retry_timings) -- cgit 1.4.1