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Fix logcontext spam on non-Linux platforms (#6059)

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This checks whether the current platform supports thread resource usage tracking
before logging a warning to avoid log spam.

Fixes https://github.com/matrix-org/synapse/issues/6055
This commit is contained in:
J. Ryan Stinnett 2019-09-18 21:55:37 +01:00 committed by Richard van der Hoff
parent 7100b5cc9d
commit a86a290850
2 changed files with 12 additions and 2 deletions
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1
changelog.d/6059.bugfix Normal file
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@ -0,0 +1 @@
Fix logcontext spam on non-Linux platforms.

13
synapse/logging/context.py
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@ -1,4 +1,5 @@
# Copyright 2014-2016 OpenMarket Ltd # Copyright 2014-2016 OpenMarket Ltd
# Copyright 2019 The Matrix.org Foundation C.I.C.
# #
# Licensed under the Apache License, Version 2.0 (the "License"); # Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License. # you may not use this file except in compliance with the License.
@ -42,13 +43,17 @@ try:
# exception. # exception.
resource.getrusage(RUSAGE_THREAD) resource.getrusage(RUSAGE_THREAD)
is_thread_resource_usage_supported = True
def get_thread_resource_usage(): def get_thread_resource_usage():
return resource.getrusage(RUSAGE_THREAD) return resource.getrusage(RUSAGE_THREAD)
except Exception: except Exception:
# If the system doesn't support resource.getrusage(RUSAGE_THREAD) then we # If the system doesn't support resource.getrusage(RUSAGE_THREAD) then we
# won't track resource usage by returning None. # won't track resource usage.
is_thread_resource_usage_supported = False
def get_thread_resource_usage(): def get_thread_resource_usage():
return None return None
@ -359,7 +364,11 @@ class LoggingContext(object):
# When we stop, let's record the cpu used since we started # When we stop, let's record the cpu used since we started
if not self.usage_start: if not self.usage_start:
logger.warning("Called stop on logcontext %s without calling start", self) # Log a warning on platforms that support thread usage tracking
if is_thread_resource_usage_supported:
logger.warning(
"Called stop on logcontext %s without calling start", self
)
return return
utime_delta, stime_delta = self._get_cputime() utime_delta, stime_delta = self._get_cputime()