diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/http/server.py | 10 | ||||
| -rw-r--r-- | synapse/push/__init__.py | 84 | ||||
| -rw-r--r-- | synapse/util/metrics.py | 86 |
3 files changed, 149 insertions, 31 deletions
diff --git a/synapse/http/server.py b/synapse/http/server.py index c250a4604f..06935783ca 100644 --- a/synapse/http/server.py +++ b/synapse/http/server.py @@ -208,6 +208,9 @@ class JsonResource(HttpServer, resource.Resource): if request.method == "OPTIONS": self._send_response(request, 200, {}) return + + start_context = LoggingContext.current_context() + # Loop through all the registered callbacks to check if the method # and path regex match for path_entry in self.path_regexs.get(request.method, []): @@ -243,6 +246,13 @@ class JsonResource(HttpServer, resource.Resource): if context: tag = context.tag + if context != start_context: + logger.warn( + "Context have unexpectedly changed %r, %r", + context, self.start_context + ) + return + incoming_requests_counter.inc(request.method, servlet_classname, tag) response_timer.inc_by( diff --git a/synapse/push/__init__.py b/synapse/push/__init__.py index 8b9d0f03e5..64e581b8ba 100644 --- a/synapse/push/__init__.py +++ b/synapse/push/__init__.py @@ -17,6 +17,8 @@ from twisted.internet import defer from synapse.streams.config import PaginationConfig from synapse.types import StreamToken +from synapse.util.logcontext import LoggingContext +from synapse.util.metrics import Measure import synapse.util.async import push_rule_evaluator as push_rule_evaluator @@ -27,6 +29,16 @@ import random logger = logging.getLogger(__name__) +_NEXT_ID = 1 + + +def _get_next_id(): + global _NEXT_ID + _id = _NEXT_ID + _NEXT_ID += 1 + return _id + + # Pushers could now be moved to pull out of the event_push_actions table instead # of listening on the event stream: this would avoid them having to run the # rules again. @@ -57,6 +69,8 @@ class Pusher(object): self.alive = True self.badge = None + self.name = "Pusher-%d" % (_get_next_id(),) + # The last value of last_active_time that we saw self.last_last_active_time = 0 self.has_unread = True @@ -86,38 +100,46 @@ class Pusher(object): @defer.inlineCallbacks def start(self): - if not self.last_token: - # First-time setup: get a token to start from (we can't - # just start from no token, ie. 'now' - # because we need the result to be reproduceable in case - # we fail to dispatch the push) - config = PaginationConfig(from_token=None, limit='1') - chunk = yield self.evStreamHandler.get_stream( - self.user_id, config, timeout=0, affect_presence=False - ) - self.last_token = chunk['end'] - self.store.update_pusher_last_token( - self.app_id, self.pushkey, self.user_id, self.last_token - ) - logger.info("Pusher %s for user %s starting from token %s", - self.pushkey, self.user_id, self.last_token) - - wait = 0 - while self.alive: - try: - if wait > 0: - yield synapse.util.async.sleep(wait) - yield self.get_and_dispatch() - wait = 0 - except: - if wait == 0: - wait = 1 - else: - wait = min(wait * 2, 1800) - logger.exception( - "Exception in pusher loop for pushkey %s. Pausing for %ds", - self.pushkey, wait + with LoggingContext(self.name): + if not self.last_token: + # First-time setup: get a token to start from (we can't + # just start from no token, ie. 'now' + # because we need the result to be reproduceable in case + # we fail to dispatch the push) + config = PaginationConfig(from_token=None, limit='1') + chunk = yield self.evStreamHandler.get_stream( + self.user_id, config, timeout=0, affect_presence=False ) + self.last_token = chunk['end'] + 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", + self.pushkey, self.user_id, self.last_token) + + else: + logger.info( + "Old pusher %s for user %s starting", + self.pushkey, self.user_id, + ) + + wait = 0 + while self.alive: + try: + if wait > 0: + yield synapse.util.async.sleep(wait) + with Measure(self.clock, "push"): + yield self.get_and_dispatch() + wait = 0 + except: + if wait == 0: + wait = 1 + else: + wait = min(wait * 2, 1800) + logger.exception( + "Exception in pusher loop for pushkey %s. Pausing for %ds", + self.pushkey, wait + ) @defer.inlineCallbacks def get_and_dispatch(self): diff --git a/synapse/util/metrics.py b/synapse/util/metrics.py new file mode 100644 index 0000000000..daf6087fe0 --- /dev/null +++ b/synapse/util/metrics.py @@ -0,0 +1,86 @@ +# -*- coding: utf-8 -*- +# Copyright 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. + + +from synapse.util.logcontext import LoggingContext +import synapse.metrics + +import logging + + +logger = logging.getLogger(__name__) + + +metrics = synapse.metrics.get_metrics_for(__name__) + +block_timer = metrics.register_distribution( + "block_timer", + labels=["block_name"] +) + +block_ru_utime = metrics.register_distribution( + "block_ru_utime", labels=["block_name"] +) + +block_ru_stime = metrics.register_distribution( + "block_ru_stime", labels=["block_name"] +) + +block_db_txn_count = metrics.register_distribution( + "block_db_txn_count", labels=["block_name"] +) + +block_db_txn_duration = metrics.register_distribution( + "block_db_txn_duration", labels=["block_name"] +) + + +class Measure(object): + __slots__ = ["clock", "name", "start_context", "start"] + + def __init__(self, clock, name): + self.clock = clock + self.name = name + self.start_context = None + self.start = None + + def __enter__(self): + self.start = self.clock.time_msec() + self.start_context = LoggingContext.current_context() + + def __exit__(self, exc_type, exc_val, exc_tb): + if exc_type is not None: + return + + duration = self.clock.time_msec() - self.start + 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 + ) + return + + ru_utime, ru_stime = context.get_resource_usage() + + block_ru_utime.inc_by(ru_utime, self.name) + block_ru_stime.inc_by(ru_stime, self.name) + block_db_txn_count.inc_by(context.db_txn_count, self.name) + block_db_txn_duration.inc_by(context.db_txn_duration, self.name) |