diff options
31 files changed, 356 insertions, 229 deletions
diff --git a/synapse/api/auth.py b/synapse/api/auth.py index 5bba9343f6..e2f84c4d57 100644 --- a/synapse/api/auth.py +++ b/synapse/api/auth.py @@ -24,6 +24,7 @@ from synapse.api.constants import EventTypes, Membership, JoinRules from synapse.api.errors import AuthError, Codes, SynapseError, EventSizeError from synapse.types import Requester, RoomID, UserID, EventID from synapse.util.logutils import log_function +from synapse.util.logcontext import preserve_context_over_fn from unpaddedbase64 import decode_base64 import logging @@ -529,7 +530,8 @@ class Auth(object): default=[""] )[0] if user and access_token and ip_addr: - self.store.insert_client_ip( + preserve_context_over_fn( + self.store.insert_client_ip, user=user, access_token=access_token, ip=ip_addr, diff --git a/synapse/app/homeserver.py b/synapse/app/homeserver.py index e5c7e39cf9..2b4be7bdd0 100755 --- a/synapse/app/homeserver.py +++ b/synapse/app/homeserver.py @@ -709,6 +709,8 @@ def run(hs): phone_home_task.start(60 * 60 * 24, now=False) def in_thread(): + # Uncomment to enable tracing of log context changes. + # sys.settrace(logcontext_tracer) with LoggingContext("run"): change_resource_limit(hs.config.soft_file_limit) reactor.run() diff --git a/synapse/crypto/keyring.py b/synapse/crypto/keyring.py index cddec0b2bc..d08ee0aa91 100644 --- a/synapse/crypto/keyring.py +++ b/synapse/crypto/keyring.py @@ -18,6 +18,10 @@ from synapse.api.errors import SynapseError, Codes from synapse.util.retryutils import get_retry_limiter from synapse.util import unwrapFirstError from synapse.util.async import ObservableDeferred +from synapse.util.logcontext import ( + preserve_context_over_deferred, preserve_context_over_fn, PreserveLoggingContext, + preserve_fn +) from twisted.internet import defer @@ -142,40 +146,43 @@ class Keyring(object): for server_name, _ in server_and_json } - # We want to wait for any previous lookups to complete before - # proceeding. - wait_on_deferred = self.wait_for_previous_lookups( - [server_name for server_name, _ in server_and_json], - server_to_deferred, - ) + with PreserveLoggingContext(): - # Actually start fetching keys. - wait_on_deferred.addBoth( - lambda _: self.get_server_verify_keys(group_id_to_group, deferreds) - ) + # We want to wait for any previous lookups to complete before + # proceeding. + wait_on_deferred = self.wait_for_previous_lookups( + [server_name for server_name, _ in server_and_json], + server_to_deferred, + ) - # When we've finished fetching all the keys for a given server_name, - # resolve the deferred passed to `wait_for_previous_lookups` so that - # any lookups waiting will proceed. - server_to_gids = {} + # Actually start fetching keys. + wait_on_deferred.addBoth( + lambda _: self.get_server_verify_keys(group_id_to_group, deferreds) + ) + + # When we've finished fetching all the keys for a given server_name, + # resolve the deferred passed to `wait_for_previous_lookups` so that + # any lookups waiting will proceed. + server_to_gids = {} - def remove_deferreds(res, server_name, group_id): - server_to_gids[server_name].discard(group_id) - if not server_to_gids[server_name]: - d = server_to_deferred.pop(server_name, None) - if d: - d.callback(None) - return res + def remove_deferreds(res, server_name, group_id): + server_to_gids[server_name].discard(group_id) + if not server_to_gids[server_name]: + d = server_to_deferred.pop(server_name, None) + if d: + d.callback(None) + return res - for g_id, deferred in deferreds.items(): - server_name = group_id_to_group[g_id].server_name - server_to_gids.setdefault(server_name, set()).add(g_id) - deferred.addBoth(remove_deferreds, server_name, g_id) + for g_id, deferred in deferreds.items(): + server_name = group_id_to_group[g_id].server_name + server_to_gids.setdefault(server_name, set()).add(g_id) + deferred.addBoth(remove_deferreds, server_name, g_id) # Pass those keys to handle_key_deferred so that the json object # signatures can be verified return [ - handle_key_deferred( + preserve_context_over_fn( + handle_key_deferred, group_id_to_group[g_id], deferreds[g_id], ) @@ -198,12 +205,13 @@ class Keyring(object): if server_name in self.key_downloads ] if wait_on: - yield defer.DeferredList(wait_on) + with PreserveLoggingContext(): + yield defer.DeferredList(wait_on) else: break for server_name, deferred in server_to_deferred.items(): - d = ObservableDeferred(deferred) + d = ObservableDeferred(preserve_context_over_deferred(deferred)) self.key_downloads[server_name] = d def rm(r, server_name): @@ -244,12 +252,13 @@ class Keyring(object): for group in group_id_to_group.values(): for key_id in group.key_ids: if key_id in merged_results[group.server_name]: - group_id_to_deferred[group.group_id].callback(( - group.group_id, - group.server_name, - key_id, - merged_results[group.server_name][key_id], - )) + with PreserveLoggingContext(): + group_id_to_deferred[group.group_id].callback(( + group.group_id, + group.server_name, + key_id, + merged_results[group.server_name][key_id], + )) break else: missing_groups.setdefault( @@ -504,7 +513,7 @@ class Keyring(object): yield defer.gatherResults( [ - self.store_keys( + preserve_fn(self.store_keys)( server_name=key_server_name, from_server=server_name, verify_keys=verify_keys, @@ -573,7 +582,7 @@ class Keyring(object): yield defer.gatherResults( [ - self.store.store_server_keys_json( + preserve_fn(self.store.store_server_keys_json)( server_name=server_name, key_id=key_id, from_server=server_name, @@ -675,7 +684,7 @@ class Keyring(object): # TODO(markjh): Store whether the keys have expired. yield defer.gatherResults( [ - self.store.store_server_verify_key( + preserve_fn(self.store.store_server_verify_key)( server_name, server_name, key.time_added, key ) for key_id, key in verify_keys.items() diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py index a97aa0c94a..90718192dd 100644 --- a/synapse/federation/federation_server.py +++ b/synapse/federation/federation_server.py @@ -126,10 +126,8 @@ class FederationServer(FederationBase): results = [] for pdu in pdu_list: - d = self._handle_new_pdu(transaction.origin, pdu) - try: - yield d + yield self._handle_new_pdu(transaction.origin, pdu) results.append({}) except FederationError as e: self.send_failure(e, transaction.origin) diff --git a/synapse/federation/transaction_queue.py b/synapse/federation/transaction_queue.py index 622adad3ae..1928da03b3 100644 --- a/synapse/federation/transaction_queue.py +++ b/synapse/federation/transaction_queue.py @@ -103,7 +103,6 @@ class TransactionQueue(object): else: return not destination.startswith("localhost") - @defer.inlineCallbacks def enqueue_pdu(self, pdu, destinations, order): # We loop through all destinations to see whether we already have # a transaction in progress. If we do, stick it in the pending_pdus @@ -141,8 +140,6 @@ class TransactionQueue(object): deferreds.append(deferred) - yield defer.DeferredList(deferreds, consumeErrors=True) - # NO inlineCallbacks def enqueue_edu(self, edu): destination = edu.destination diff --git a/synapse/handlers/_base.py b/synapse/handlers/_base.py index 1423df6cf3..fa83d3e464 100644 --- a/synapse/handlers/_base.py +++ b/synapse/handlers/_base.py @@ -293,19 +293,11 @@ class BaseHandler(object): with PreserveLoggingContext(): # Don't block waiting on waking up all the listeners. - notify_d = self.notifier.on_new_room_event( + self.notifier.on_new_room_event( event, event_stream_id, max_stream_id, extra_users=extra_users ) - def log_failure(f): - logger.warn( - "Failed to notify about %s: %s", - event.event_id, f.value - ) - - notify_d.addErrback(log_failure) - # If invite, remove room_state from unsigned before sending. event.unsigned.pop("invite_room_state", None) diff --git a/synapse/handlers/events.py b/synapse/handlers/events.py index 5ad8f3779a..4933c31c19 100644 --- a/synapse/handlers/events.py +++ b/synapse/handlers/events.py @@ -18,6 +18,7 @@ from twisted.internet import defer from synapse.util.logutils import log_function from synapse.types import UserID from synapse.events.utils import serialize_event +from synapse.util.logcontext import preserve_context_over_fn from ._base import BaseHandler @@ -29,11 +30,17 @@ logger = logging.getLogger(__name__) def started_user_eventstream(distributor, user): - return distributor.fire("started_user_eventstream", user) + return preserve_context_over_fn( + distributor.fire, + "started_user_eventstream", user + ) def stopped_user_eventstream(distributor, user): - return distributor.fire("stopped_user_eventstream", user) + return preserve_context_over_fn( + distributor.fire, + "stopped_user_eventstream", user + ) class EventStreamHandler(BaseHandler): diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 2ce1e9d6c7..b78b0502d9 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -221,19 +221,11 @@ class FederationHandler(BaseHandler): extra_users.append(target_user) with PreserveLoggingContext(): - d = self.notifier.on_new_room_event( + self.notifier.on_new_room_event( event, event_stream_id, max_stream_id, extra_users=extra_users ) - def log_failure(f): - logger.warn( - "Failed to notify about %s: %s", - event.event_id, f.value - ) - - d.addErrback(log_failure) - if event.type == EventTypes.Member: if event.membership == Membership.JOIN: prev_state = context.current_state.get((event.type, event.state_key)) @@ -643,19 +635,11 @@ class FederationHandler(BaseHandler): ) with PreserveLoggingContext(): - d = self.notifier.on_new_room_event( + self.notifier.on_new_room_event( event, event_stream_id, max_stream_id, extra_users=[joinee] ) - def log_failure(f): - logger.warn( - "Failed to notify about %s: %s", - event.event_id, f.value - ) - - d.addErrback(log_failure) - logger.debug("Finished joining %s to %s", joinee, room_id) finally: room_queue = self.room_queues[room_id] @@ -730,18 +714,10 @@ class FederationHandler(BaseHandler): extra_users.append(target_user) with PreserveLoggingContext(): - d = self.notifier.on_new_room_event( + self.notifier.on_new_room_event( event, event_stream_id, max_stream_id, extra_users=extra_users ) - def log_failure(f): - logger.warn( - "Failed to notify about %s: %s", - event.event_id, f.value - ) - - d.addErrback(log_failure) - if event.type == EventTypes.Member: if event.content["membership"] == Membership.JOIN: user = UserID.from_string(event.state_key) @@ -811,19 +787,11 @@ class FederationHandler(BaseHandler): target_user = UserID.from_string(event.state_key) with PreserveLoggingContext(): - d = self.notifier.on_new_room_event( + self.notifier.on_new_room_event( event, event_stream_id, max_stream_id, extra_users=[target_user], ) - def log_failure(f): - logger.warn( - "Failed to notify about %s: %s", - event.event_id, f.value - ) - - d.addErrback(log_failure) - defer.returnValue(event) @defer.inlineCallbacks @@ -948,18 +916,10 @@ class FederationHandler(BaseHandler): extra_users.append(target_user) with PreserveLoggingContext(): - d = self.notifier.on_new_room_event( + self.notifier.on_new_room_event( event, event_stream_id, max_stream_id, extra_users=extra_users ) - def log_failure(f): - logger.warn( - "Failed to notify about %s: %s", - event.event_id, f.value - ) - - d.addErrback(log_failure) - new_pdu = event destinations = set() diff --git a/synapse/handlers/presence.py b/synapse/handlers/presence.py index d0c21ff5c9..b61394f2b5 100644 --- a/synapse/handlers/presence.py +++ b/synapse/handlers/presence.py @@ -378,9 +378,9 @@ class PresenceHandler(BaseHandler): was_polling = target_user in self._user_cachemap if now_online and not was_polling: - self.start_polling_presence(target_user, state=state) + yield self.start_polling_presence(target_user, state=state) elif not now_online and was_polling: - self.stop_polling_presence(target_user) + yield self.stop_polling_presence(target_user) # TODO(paul): perform a presence push as part of start/stop poll so # we don't have to do this all the time @@ -394,7 +394,8 @@ class PresenceHandler(BaseHandler): if now - prev_state.state.get("last_active", 0) < LAST_ACTIVE_GRANULARITY: return - self.changed_presencelike_data(user, {"last_active": now}) + with PreserveLoggingContext(): + self.changed_presencelike_data(user, {"last_active": now}) def get_joined_rooms_for_user(self, user): """Get the list of rooms a user is joined to. @@ -466,11 +467,12 @@ class PresenceHandler(BaseHandler): local_user, room_ids=[room_id], add_to_cache=False ) - self.push_update_to_local_and_remote( - observed_user=local_user, - users_to_push=[user], - statuscache=statuscache, - ) + with PreserveLoggingContext(): + self.push_update_to_local_and_remote( + observed_user=local_user, + users_to_push=[user], + statuscache=statuscache, + ) @defer.inlineCallbacks def send_presence_invite(self, observer_user, observed_user): @@ -556,7 +558,7 @@ class PresenceHandler(BaseHandler): observer_user.localpart, observed_user.to_string() ) - self.start_polling_presence( + yield self.start_polling_presence( observer_user, target_user=observed_user ) diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py index 2660fd21a2..24c850ae9b 100644 --- a/synapse/handlers/register.py +++ b/synapse/handlers/register.py @@ -186,7 +186,7 @@ class RegistrationHandler(BaseHandler): token=token, password_hash="" ) - registered_user(self.distributor, user) + yield registered_user(self.distributor, user) defer.returnValue((user_id, token)) @defer.inlineCallbacks diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py index bfd7e44e9f..a8e3a9029c 100644 --- a/synapse/handlers/room.py +++ b/synapse/handlers/room.py @@ -25,6 +25,7 @@ from synapse.api.constants import ( from synapse.api.errors import AuthError, StoreError, SynapseError, Codes from synapse.util import stringutils, unwrapFirstError from synapse.util.async import run_on_reactor +from synapse.util.logcontext import preserve_context_over_fn from signedjson.sign import verify_signed_json from signedjson.key import decode_verify_key_bytes @@ -46,11 +47,17 @@ def collect_presencelike_data(distributor, user, content): def user_left_room(distributor, user, room_id): - return distributor.fire("user_left_room", user=user, room_id=room_id) + return preserve_context_over_fn( + distributor.fire, + "user_left_room", user=user, room_id=room_id + ) def user_joined_room(distributor, user, room_id): - return distributor.fire("user_joined_room", user=user, room_id=room_id) + return preserve_context_over_fn( + distributor.fire, + "user_joined_room", user=user, room_id=room_id + ) class RoomCreationHandler(BaseHandler): diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py index 72271f2626..3f1cda5b0b 100644 --- a/synapse/handlers/sync.py +++ b/synapse/handlers/sync.py @@ -18,7 +18,7 @@ from ._base import BaseHandler from synapse.streams.config import PaginationConfig from synapse.api.constants import Membership, EventTypes from synapse.util import unwrapFirstError -from synapse.util.logcontext import LoggingContext +from synapse.util.logcontext import LoggingContext, PreserveLoggingContext from twisted.internet import defer @@ -241,15 +241,16 @@ class SyncHandler(BaseHandler): deferreds = [] for event in room_list: if event.membership == Membership.JOIN: - room_sync_deferred = self.full_state_sync_for_joined_room( - room_id=event.room_id, - sync_config=sync_config, - now_token=now_token, - timeline_since_token=timeline_since_token, - ephemeral_by_room=ephemeral_by_room, - tags_by_room=tags_by_room, - account_data_by_room=account_data_by_room, - ) + with PreserveLoggingContext(LoggingContext.current_context()): + room_sync_deferred = self.full_state_sync_for_joined_room( + room_id=event.room_id, + sync_config=sync_config, + now_token=now_token, + timeline_since_token=timeline_since_token, + ephemeral_by_room=ephemeral_by_room, + tags_by_room=tags_by_room, + account_data_by_room=account_data_by_room, + ) room_sync_deferred.addCallback(joined.append) deferreds.append(room_sync_deferred) elif event.membership == Membership.INVITE: @@ -262,15 +263,16 @@ class SyncHandler(BaseHandler): leave_token = now_token.copy_and_replace( "room_key", "s%d" % (event.stream_ordering,) ) - room_sync_deferred = self.full_state_sync_for_archived_room( - sync_config=sync_config, - room_id=event.room_id, - leave_event_id=event.event_id, - leave_token=leave_token, - timeline_since_token=timeline_since_token, - tags_by_room=tags_by_room, - account_data_by_room=account_data_by_room, - ) + with PreserveLoggingContext(LoggingContext.current_context()): + room_sync_deferred = self.full_state_sync_for_archived_room( + sync_config=sync_config, + room_id=event.room_id, + leave_event_id=event.event_id, + leave_token=leave_token, + timeline_since_token=timeline_since_token, + tags_by_room=tags_by_room, + account_data_by_room=account_data_by_room, + ) room_sync_deferred.addCallback(archived.append) deferreds.append(room_sync_deferred) diff --git a/synapse/http/server.py b/synapse/http/server.py index 06935783ca..a90e2e1125 100644 --- a/synapse/http/server.py +++ b/synapse/http/server.py @@ -99,9 +99,8 @@ def request_handler(request_handler): request_context.request = request_id with request.processing(): try: - d = request_handler(self, request) - with PreserveLoggingContext(): - yield d + with PreserveLoggingContext(request_context): + yield request_handler(self, request) except CodeMessageException as e: code = e.code if isinstance(e, SynapseError): diff --git a/synapse/notifier.py b/synapse/notifier.py index 1a90bd55cd..560866b26e 100644 --- a/synapse/notifier.py +++ b/synapse/notifier.py @@ -18,7 +18,8 @@ from synapse.api.constants import EventTypes from synapse.api.errors import AuthError from synapse.util.logutils import log_function -from synapse.util.async import run_on_reactor, ObservableDeferred +from synapse.util.async import ObservableDeferred +from synapse.util.logcontext import PreserveLoggingContext from synapse.types import StreamToken import synapse.metrics @@ -73,7 +74,8 @@ class _NotifierUserStream(object): self.current_token = current_token self.last_notified_ms = time_now_ms - self.notify_deferred = ObservableDeferred(defer.Deferred()) + with PreserveLoggingContext(): + self.notify_deferred = ObservableDeferred(defer.Deferred()) def notify(self, stream_key, stream_id, time_now_ms): """Notify any listeners for this user of a new event from an @@ -88,8 +90,10 @@ class _NotifierUserStream(object): ) self.last_notified_ms = time_now_ms noify_deferred = self.notify_deferred - self.notify_deferred = ObservableDeferred(defer.Deferred()) - noify_deferred.callback(self.current_token) + + with PreserveLoggingContext(): + self.notify_deferred = ObservableDeferred(defer.Deferred()) + noify_deferred.callback(self.current_token) def remove(self, notifier): """ Remove this listener from all the indexes in the Notifier @@ -184,8 +188,6 @@ class Notifier(object): lambda: count(bool, self.appservice_to_user_streams.values()), ) - @log_function - @defer.inlineCallbacks def on_new_room_event(self, event, room_stream_id, max_room_stream_id, extra_users=[]): """ Used by handlers to inform the notifier something has happened @@ -199,12 +201,11 @@ class Notifier(object): until all previous events have been persisted before notifying the client streams. """ - yield run_on_reactor() - - self.pending_new_room_events.append(( - room_stream_id, event, extra_users - )) - self._notify_pending_new_room_events(max_room_stream_id) + with PreserveLoggingContext(): + self.pending_new_room_events.append(( + room_stream_id, event, extra_users + )) + self._notify_pending_new_room_events(max_room_stream_id) def _notify_pending_new_room_events(self, max_room_stream_id): """Notify for the room events that were queued waiting for a previous @@ -251,31 +252,29 @@ class Notifier(object): extra_streams=app_streams, ) - @defer.inlineCallbacks - @log_function def on_new_event(self, stream_key, new_token, users=[], rooms=[], extra_streams=set()): """ Used to inform listeners that something has happend event wise. Will wake up all listeners for the given users and rooms. """ - yield run_on_reactor() - user_streams = set() + with PreserveLoggingContext(): + user_streams = set() - for user in users: - user_stream = self.user_to_user_stream.get(str(user)) - if user_stream is not None: - user_streams.add(user_stream) + for user in users: + user_stream = self.user_to_user_stream.get(str(user)) + if user_stream is not None: + user_streams.add(user_stream) - for room in rooms: - user_streams |= self.room_to_user_streams.get(room, set()) + for room in rooms: + user_streams |= self.room_to_user_streams.get(room, set()) - time_now_ms = self.clock.time_msec() - for user_stream in user_streams: - try: - user_stream.notify(stream_key, new_token, time_now_ms) - except: - logger.exception("Failed to notify listener") + time_now_ms = self.clock.time_msec() + for user_stream in user_streams: + try: + user_stream.notify(stream_key, new_token, time_now_ms) + except: + logger.exception("Failed to notify listener") @defer.inlineCallbacks def wait_for_events(self, user_id, timeout, callback, room_ids=None, @@ -325,7 +324,8 @@ class Notifier(object): # that we don't miss any current_token updates. prev_token = current_token listener = user_stream.new_listener(prev_token) - yield listener.deferred + with PreserveLoggingContext(): + yield listener.deferred except defer.CancelledError: break diff --git a/synapse/push/__init__.py b/synapse/push/__init__.py index 64e581b8ba..8da2d8716c 100644 --- a/synapse/push/__init__.py +++ b/synapse/push/__init__.py @@ -111,7 +111,7 @@ class Pusher(object): self.user_id, config, timeout=0, affect_presence=False ) self.last_token = chunk['end'] - self.store.update_pusher_last_token( + yield self.store.update_pusher_last_token( self.app_id, self.pushkey, self.user_id, self.last_token ) logger.info("New pusher %s for user %s starting from token %s", diff --git a/synapse/push/pusherpool.py b/synapse/push/pusherpool.py index d1b7c0802f..d7dcb2de4b 100644 --- a/synapse/push/pusherpool.py +++ b/synapse/push/pusherpool.py @@ -18,6 +18,7 @@ from twisted.internet import defer from httppusher import HttpPusher from synapse.push import PusherConfigException +from synapse.util.logcontext import preserve_fn import logging @@ -76,7 +77,7 @@ class PusherPool: "Removing pusher for app id %s, pushkey %s, user %s", app_id, pushkey, p['user_name'] ) - self.remove_pusher(p['app_id'], p['pushkey'], p['user_name']) + yield self.remove_pusher(p['app_id'], p['pushkey'], p['user_name']) @defer.inlineCallbacks def remove_pushers_by_user(self, user_id): @@ -91,7 +92,7 @@ class PusherPool: "Removing pusher for app id %s, pushkey %s, user %s", p['app_id'], p['pushkey'], p['user_name'] ) - self.remove_pusher(p['app_id'], p['pushkey'], p['user_name']) + yield self.remove_pusher(p['app_id'], p['pushkey'], p['user_name']) @defer.inlineCallbacks def _add_pusher_to_store(self, user_id, access_token, profile_tag, kind, @@ -110,7 +111,7 @@ class PusherPool: lang=lang, data=data, ) - self._refresh_pusher(app_id, pushkey, user_id) + yield self._refresh_pusher(app_id, pushkey, user_id) def _create_pusher(self, pusherdict): if pusherdict['kind'] == 'http': @@ -166,7 +167,7 @@ class PusherPool: if fullid in self.pushers: self.pushers[fullid].stop() self.pushers[fullid] = p - p.start() + preserve_fn(p.start)() logger.info("Started pushers") diff --git a/synapse/rest/client/v2_alpha/account_data.py b/synapse/rest/client/v2_alpha/account_data.py index 985efe2a62..1456881c1a 100644 --- a/synapse/rest/client/v2_alpha/account_data.py +++ b/synapse/rest/client/v2_alpha/account_data.py @@ -57,7 +57,7 @@ class AccountDataServlet(RestServlet): user_id, account_data_type, body ) - yield self.notifier.on_new_event( + self.notifier.on_new_event( "account_data_key", max_id, users=[user_id] ) @@ -99,7 +99,7 @@ class RoomAccountDataServlet(RestServlet): user_id, room_id, account_data_type, body ) - yield self.notifier.on_new_event( + self.notifier.on_new_event( "account_data_key", max_id, users=[user_id] ) diff --git a/synapse/rest/client/v2_alpha/tags.py b/synapse/rest/client/v2_alpha/tags.py index 42f2203f3d..79c436a8cf 100644 --- a/synapse/rest/client/v2_alpha/tags.py +++ b/synapse/rest/client/v2_alpha/tags.py @@ -80,7 +80,7 @@ class TagServlet(RestServlet): max_id = yield self.store.add_tag_to_room(user_id, room_id, tag, body) - yield self.notifier.on_new_event( + self.notifier.on_new_event( "account_data_key", max_id, users=[user_id] ) @@ -94,7 +94,7 @@ class TagServlet(RestServlet): max_id = yield self.store.remove_tag_from_room(user_id, room_id, tag) - yield self.notifier.on_new_event( + self.notifier.on_new_event( "account_data_key", max_id, users=[user_id] ) diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py index cfb87d9328..2e97ac84a8 100644 --- a/synapse/storage/_base.py +++ b/synapse/storage/_base.py @@ -15,7 +15,7 @@ import logging from synapse.api.errors import StoreError -from synapse.util.logcontext import preserve_context_over_fn, LoggingContext +from synapse.util.logcontext import LoggingContext, PreserveLoggingContext from synapse.util.caches.dictionary_cache import DictionaryCache from synapse.util.caches.descriptors import Cache import synapse.metrics @@ -298,10 +298,10 @@ class SQLBaseStore(object): func, *args, **kwargs ) - result = yield preserve_context_over_fn( - self._db_pool.runWithConnection, - inner_func, *args, **kwargs - ) + with PreserveLoggingContext(): + result = yield self._db_pool.runWithConnection( + inner_func, *args, **kwargs + ) for after_callback, after_args in after_callbacks: after_callback(*after_args) @@ -326,10 +326,10 @@ class SQLBaseStore(object): return func(conn, *args, **kwargs) - result = yield preserve_context_over_fn( - self._db_pool.runWithConnection, - inner_func, *args, **kwargs - ) + with PreserveLoggingContext(): + result = yield self._db_pool.runWithConnection( + inner_func, *args, **kwargs + ) defer.returnValue(result) diff --git a/synapse/storage/events.py b/synapse/storage/events.py index 4d7cdd00d0..c6ed54721c 100644 --- a/synapse/storage/events.py +++ b/synapse/storage/events.py @@ -19,7 +19,7 @@ from twisted.internet import defer, reactor from synapse.events import FrozenEvent, USE_FROZEN_DICTS from synapse.events.utils import prune_event -from synapse.util.logcontext import preserve_context_over_deferred +from synapse.util.logcontext import preserve_fn, PreserveLoggingContext from synapse.util.logutils import log_function from synapse.api.constants import EventTypes @@ -664,14 +664,16 @@ class EventsStore(SQLBaseStore): for ids, d in lst: if not d.called: try: - d.callback([ - res[i] - for i in ids - if i in res - ]) + with PreserveLoggingContext(): + d.callback([ + res[i] + for i in ids + if i in res + ]) except: logger.exception("Failed to callback") - reactor.callFromThread(fire, event_list, row_dict) + with PreserveLoggingContext(): + reactor.callFromThread(fire, event_list, row_dict) except Exception as e: logger.exception("do_fetch") @@ -679,10 +681,12 @@ class EventsStore(SQLBaseStore): def fire(evs): for _, d in evs: if not d.called: - d.errback(e) + with PreserveLoggingContext(): + d.errback(e) if event_list: - reactor.callFromThread(fire, event_list) + with PreserveLoggingContext(): + reactor.callFromThread(fire, event_list) @defer.inlineCallbacks def _enqueue_events(self, events, check_redacted=True, @@ -709,18 +713,20 @@ class EventsStore(SQLBaseStore): should_start = False if should_start: - self.runWithConnection( - self._do_fetch - ) + with PreserveLoggingContext(): + self.runWithConnection( + self._do_fetch + ) - rows = yield preserve_context_over_deferred(events_d) + with PreserveLoggingContext(): + rows = yield events_d if not allow_rejected: rows[:] = [r for r in rows if not r["rejects"]] res = yield defer.gatherResults( [ - self._get_event_from_row( + preserve_fn(self._get_event_from_row)( row["internal_metadata"], row["json"], row["redacts"], check_redacted=check_redacted, get_prev_content=get_prev_content, diff --git a/synapse/storage/presence.py b/synapse/storage/presence.py index 9b3aecaf8c..ef525f34c5 100644 --- a/synapse/storage/presence.py +++ b/synapse/storage/presence.py @@ -68,8 +68,9 @@ class PresenceStore(SQLBaseStore): for row in rows }) + @defer.inlineCallbacks def set_presence_state(self, user_localpart, new_state): - res = self._simple_update_one( + res = yield self._simple_update_one( table="presence", keyvalues={"user_id": user_localpart}, updatevalues={"state": new_state["state"], @@ -79,7 +80,7 @@ class PresenceStore(SQLBaseStore): ) self.get_presence_state.invalidate((user_localpart,)) - return res + defer.returnValue(res) def allow_presence_visible(self, observed_localpart, observer_userid): return self._simple_insert( diff --git a/synapse/storage/stream.py b/synapse/storage/stream.py index 50436cb2d2..367ffc9543 100644 --- a/synapse/storage/stream.py +++ b/synapse/storage/stream.py @@ -39,6 +39,7 @@ from ._base import SQLBaseStore from synapse.util.caches.descriptors import cachedInlineCallbacks from synapse.api.constants import EventTypes from synapse.types import RoomStreamToken +from synapse.util.logcontext import preserve_fn import logging @@ -170,12 +171,12 @@ class StreamStore(SQLBaseStore): room_ids = list(room_ids) for rm_ids in (room_ids[i:i + 20] for i in xrange(0, len(room_ids), 20)): res = yield defer.gatherResults([ - self.get_room_events_stream_for_room( - room_id, from_key, to_key, limit - ).addCallback(lambda r, rm: (rm, r), room_id) + preserve_fn(self.get_room_events_stream_for_room)( + room_id, from_key, to_key, limit, + ) for room_id in room_ids ]) - results.update(dict(res)) + results.update(dict(zip(rm_ids, res))) defer.returnValue(results) diff --git a/synapse/util/__init__.py b/synapse/util/__init__.py index 7566d9eb33..133671e238 100644 --- a/synapse/util/__init__.py +++ b/synapse/util/__init__.py @@ -13,7 +13,7 @@ # See the License for the specific language governing permissions and # limitations under the License. -from synapse.util.logcontext import LoggingContext, PreserveLoggingContext +from synapse.util.logcontext import PreserveLoggingContext from twisted.internet import defer, reactor, task @@ -61,10 +61,8 @@ class Clock(object): *args: Postional arguments to pass to function. **kwargs: Key arguments to pass to function. """ - current_context = LoggingContext.current_context() - def wrapped_callback(*args, **kwargs): - with PreserveLoggingContext(current_context): + with PreserveLoggingContext(): callback(*args, **kwargs) with PreserveLoggingContext(): diff --git a/synapse/util/async.py b/synapse/util/async.py index 200edd404c..640fae3890 100644 --- a/synapse/util/async.py +++ b/synapse/util/async.py @@ -16,13 +16,16 @@ from twisted.internet import defer, reactor -from .logcontext import preserve_context_over_deferred +from .logcontext import PreserveLoggingContext +@defer.inlineCallbacks def sleep(seconds): d = defer.Deferred() - reactor.callLater(seconds, d.callback, seconds) - return preserve_context_over_deferred(d) + with PreserveLoggingContext(): + reactor.callLater(seconds, d.callback, seconds) + res = yield d + defer.returnValue(res) def run_on_reactor(): @@ -54,6 +57,7 @@ class ObservableDeferred(object): object.__setattr__(self, "_result", (True, r)) while self._observers: try: + # TODO: Handle errors here. self._observers.pop().callback(r) except: pass @@ -63,6 +67,7 @@ class ObservableDeferred(object): object.__setattr__(self, "_result", (False, f)) while self._observers: try: + # TODO: Handle errors here. self._observers.pop().errback(f) except: pass diff --git a/synapse/util/caches/descriptors.py b/synapse/util/caches/descriptors.py index e27917c63a..277854ccbc 100644 --- a/synapse/util/caches/descriptors.py +++ b/synapse/util/caches/descriptors.py @@ -18,6 +18,9 @@ from synapse.util.async import ObservableDeferred from synapse.util import unwrapFirstError from synapse.util.caches.lrucache import LruCache from synapse.util.caches.treecache import TreeCache +from synapse.util.logcontext import ( + PreserveLoggingContext, preserve_context_over_deferred, preserve_context_over_fn +) from . import caches_by_name, DEBUG_CACHES, cache_counter @@ -190,7 +193,7 @@ class CacheDescriptor(object): defer.returnValue(cached_result) observer.addCallback(check_result) - return observer + return preserve_context_over_deferred(observer) except KeyError: # Get the sequence number of the cache before reading from the # database so that we can tell if the cache is invalidated @@ -198,6 +201,7 @@ class CacheDescriptor(object): sequence = self.cache.sequence ret = defer.maybeDeferred( + preserve_context_over_fn, self.function_to_call, obj, *args, **kwargs ) @@ -211,7 +215,7 @@ class CacheDescriptor(object): ret = ObservableDeferred(ret, consumeErrors=True) self.cache.update(sequence, cache_key, ret) - return ret.observe() + return preserve_context_over_deferred(ret.observe()) wrapped.invalidate = self.cache.invalidate wrapped.invalidate_all = self.cache.invalidate_all @@ -299,6 +303,7 @@ class CacheListDescriptor(object): args_to_call[self.list_name] = missing ret_d = defer.maybeDeferred( + preserve_context_over_fn, self.function_to_call, **args_to_call ) @@ -308,7 +313,8 @@ class CacheListDescriptor(object): # We need to create deferreds for each arg in the list so that # we can insert the new deferred into the cache. for arg in missing: - observer = ret_d.observe() + with PreserveLoggingContext(): + observer = ret_d.observe() observer.addCallback(lambda r, arg: r.get(arg, None), arg) observer = ObservableDeferred(observer) @@ -327,10 +333,10 @@ class CacheListDescriptor(object): cached[arg] = res - return defer.gatherResults( + return preserve_context_over_deferred(defer.gatherResults( cached.values(), consumeErrors=True, - ).addErrback(unwrapFirstError).addCallback(lambda res: dict(res)) + ).addErrback(unwrapFirstError).addCallback(lambda res: dict(res))) obj.__dict__[self.orig.__name__] = wrapped diff --git a/synapse/util/caches/snapshot_cache.py b/synapse/util/caches/snapshot_cache.py index b1e40417fd..d03678b8c8 100644 --- a/synapse/util/caches/snapshot_cache.py +++ b/synapse/util/caches/snapshot_cache.py @@ -87,7 +87,8 @@ class SnapshotCache(object): # expire from the rotation of that cache. self.next_result_cache[key] = result self.pending_result_cache.pop(key, None) + return r - result.observe().addBoth(shuffle_along) + result.addBoth(shuffle_along) return result.observe() diff --git a/synapse/util/distributor.py b/synapse/util/distributor.py index 4ebfebf701..8875813de4 100644 --- a/synapse/util/distributor.py +++ b/synapse/util/distributor.py @@ -15,9 +15,7 @@ from twisted.internet import defer -from synapse.util.logcontext import ( - PreserveLoggingContext, preserve_context_over_deferred, -) +from synapse.util.logcontext import PreserveLoggingContext from synapse.util import unwrapFirstError @@ -97,6 +95,7 @@ class Signal(object): Each observer callable may return a Deferred.""" self.observers.append(observer) + @defer.inlineCallbacks def fire(self, *args, **kwargs): """Invokes every callable in the observer list, passing in the args and kwargs. Exceptions thrown by observers are logged but ignored. It is @@ -116,6 +115,7 @@ class Signal(object): failure.getTracebackObject())) if not self.suppress_failures: return failure + return defer.maybeDeferred(observer, *args, **kwargs).addErrback(eb) with PreserveLoggingContext(): @@ -124,8 +124,11 @@ class Signal(object): for observer in self.observers ] - d = defer.gatherResults(deferreds, consumeErrors=True) + res = yield defer.gatherResults( + deferreds, consumeErrors=True + ).addErrback(unwrapFirstError) - d.addErrback(unwrapFirstError) + defer.returnValue(res) - return preserve_context_over_deferred(d) + def __repr__(self): + return "<Signal name=%r>" % (self.name,) diff --git a/synapse/util/logcontext.py b/synapse/util/logcontext.py index e701092cd8..9134e67908 100644 --- a/synapse/util/logcontext.py +++ b/synapse/util/logcontext.py @@ -48,7 +48,7 @@ class LoggingContext(object): __slots__ = [ "parent_context", "name", "usage_start", "usage_end", "main_thread", - "__dict__", "tag", + "__dict__", "tag", "alive", ] thread_local = threading.local() @@ -88,6 +88,7 @@ class LoggingContext(object): self.usage_start = None self.main_thread = threading.current_thread() self.tag = "" + self.alive = True def __str__(self): return "%s@%x" % (self.name, id(self)) @@ -106,6 +107,7 @@ class LoggingContext(object): The context that was previously active """ current = cls.current_context() + if current is not context: current.stop() cls.thread_local.current_context = context @@ -117,6 +119,7 @@ class LoggingContext(object): if self.parent_context is not None: raise Exception("Attempt to enter logging context multiple times") self.parent_context = self.set_current_context(self) + self.alive = True return self def __exit__(self, type, value, traceback): @@ -136,6 +139,7 @@ class LoggingContext(object): self ) self.parent_context = None + self.alive = False def __getattr__(self, name): """Delegate member lookup to parent context""" @@ -213,7 +217,7 @@ class PreserveLoggingContext(object): 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"] + __slots__ = ["current_context", "new_context", "has_parent"] def __init__(self, new_context=LoggingContext.sentinel): self.new_context = new_context @@ -224,11 +228,26 @@ class PreserveLoggingContext(object): self.new_context ) + if self.current_context: + self.has_parent = self.current_context.parent_context is not None + if not self.current_context.alive: + logger.warn( + "Entering dead context: %s", + self.current_context, + ) + def __exit__(self, type, value, traceback): """Restores the current logging context""" - LoggingContext.set_current_context(self.current_context) + context = LoggingContext.set_current_context(self.current_context) + + if context != self.new_context: + logger.warn( + "Unexpected logging context: %s is not %s", + context, self.new_context, + ) + if self.current_context is not LoggingContext.sentinel: - if self.current_context.parent_context is None: + if not self.current_context.alive: logger.warn( "Restoring dead context: %s", self.current_context, @@ -289,3 +308,74 @@ def preserve_context_over_deferred(deferred): d = _PreservingContextDeferred(current_context) deferred.chainDeferred(d) return d + + +def preserve_fn(f): + """Ensures that function is called with correct context and that context is + restored after return. Useful for wrapping functions that return a deferred + which you don't yield on. + """ + current = LoggingContext.current_context() + + def g(*args, **kwargs): + with PreserveLoggingContext(current): + return f(*args, **kwargs) + + return g + + +# modules to ignore in `logcontext_tracer` +_to_ignore = [ + "synapse.util.logcontext", + "synapse.http.server", + "synapse.storage._base", + "synapse.util.async", +] + + +def logcontext_tracer(frame, event, arg): + """A tracer that logs whenever a logcontext "unexpectedly" changes within + a function. Probably inaccurate. + + Use by calling `sys.settrace(logcontext_tracer)` in the main thread. + """ + if event == 'call': + name = frame.f_globals["__name__"] + if name.startswith("synapse"): + if name == "synapse.util.logcontext": + if frame.f_code.co_name in ["__enter__", "__exit__"]: + tracer = frame.f_back.f_trace + if tracer: + tracer.just_changed = True + + tracer = frame.f_trace + if tracer: + return tracer + + if not any(name.startswith(ig) for ig in _to_ignore): + return LineTracer() + + +class LineTracer(object): + __slots__ = ["context", "just_changed"] + + def __init__(self): + self.context = LoggingContext.current_context() + self.just_changed = False + + def __call__(self, frame, event, arg): + if event in 'line': + if self.just_changed: + self.context = LoggingContext.current_context() + self.just_changed = False + else: + c = LoggingContext.current_context() + if c != self.context: + logger.info( + "Context changed! %s -> %s, %s, %s", + self.context, c, + frame.f_code.co_filename, frame.f_lineno + ) + self.context = c + + return self diff --git a/synapse/util/logutils.py b/synapse/util/logutils.py index c37a157787..3a83828d25 100644 --- a/synapse/util/logutils.py +++ b/synapse/util/logutils.py @@ -168,3 +168,38 @@ def trace_function(f): 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 daf6087fe0..ca48007218 100644 --- a/synapse/util/metrics.py +++ b/synapse/util/metrics.py @@ -68,16 +68,18 @@ class Measure(object): block_timer.inc_by(duration, self.name) context = LoggingContext.current_context() - if not context: - return if context != self.start_context: logger.warn( - "Context have unexpectedly changed %r, %r", - context, self.start_context + "Context have unexpectedly changed from '%s' to '%s'. (%r)", + context, self.start_context, self.name ) return + if not context: + logger.warn("Expected context. (%r)", self.name) + return + ru_utime, ru_stime = context.get_resource_usage() block_ru_utime.inc_by(ru_utime, self.name) diff --git a/synapse/util/ratelimitutils.py b/synapse/util/ratelimitutils.py index ea321bc6a9..4076eed269 100644 --- a/synapse/util/ratelimitutils.py +++ b/synapse/util/ratelimitutils.py @@ -18,6 +18,7 @@ from twisted.internet import defer from synapse.api.errors import LimitExceededError from synapse.util.async import sleep +from synapse.util.logcontext import preserve_fn import collections import contextlib @@ -163,7 +164,7 @@ class _PerHostRatelimiter(object): "Ratelimit [%s]: sleeping req", id(request_id), ) - ret_defer = sleep(self.sleep_msec / 1000.0) + ret_defer = preserve_fn(sleep)(self.sleep_msec / 1000.0) self.sleeping_requests.add(request_id) |