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Fix "Starting metrics collection from sentinel context" errors (#9053)

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Erik Johnston 2021-01-08 14:33:53 +00:00 committed by GitHub
parent 12f79da587
commit a03d71dc9d
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3 changed files with 22 additions and 21 deletions
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1
changelog.d/9053.bugfix Normal file
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@ -0,0 +1 @@
Fix bug where we didn't correctly record CPU time spent in 'on_new_event' block.

39
synapse/notifier.py
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@ -396,31 +396,30 @@ class Notifier:
Will wake up all listeners for the given users and rooms.
"""
with PreserveLoggingContext():
with Measure(self.clock, "on_new_event"):
user_streams = set()
with Measure(self.clock, "on_new_event"):
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 Exception:
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 Exception:
logger.exception("Failed to notify listener")
self.notify_replication()
self.notify_replication()
# Notify appservices
self._notify_app_services_ephemeral(
stream_key, new_token, users,
)
# Notify appservices
self._notify_app_services_ephemeral(
stream_key, new_token, users,
)
def on_new_replication_data(self) -> None:
"""Used to inform replication listeners that something has happened

3
synapse/util/metrics.py
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@ -111,7 +111,8 @@ class Measure:
curr_context = current_context()
if not curr_context:
logger.warning(
"Starting metrics collection from sentinel context: metrics will be lost"
"Starting metrics collection %r from sentinel context: metrics will be lost",
name,
)
parent_context = None
else: