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Check that gc method is available before using in synapse/app/_base (#11816)

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* add check that gc.freeze is available before calling

* newsfragment

* lint

* Update comment

Co-authored-by: Dan Callahan <danc@element.io>

Co-authored-by: Dan Callahan <danc@element.io>
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Shay 2022-01-25 10:35:18 -08:00 committed by GitHub
parent 6a72c910f1
commit b8bf600700
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2 changed files with 8 additions and 5 deletions
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1
changelog.d/11816.misc Normal file
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@ -0,0 +1 @@
Drop support for Python 3.6, which is EOL.

12
synapse/app/_base.py
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@ -468,12 +468,14 @@ async def start(hs: "HomeServer") -> None:
# everything currently allocated are things that will be used for the # everything currently allocated are things that will be used for the
# rest of time. Doing so means less work each GC (hopefully). # rest of time. Doing so means less work each GC (hopefully).
# #
gc.collect() # PyPy does not (yet?) implement gc.freeze()
gc.freeze() if hasattr(gc, "freeze"):
gc.collect()
gc.freeze()
# Speed up shutdowns by freezing all allocated objects. This moves everything # Speed up shutdowns by freezing all allocated objects. This moves everything
# into the permanent generation and excludes them from the final GC. # into the permanent generation and excludes them from the final GC.
atexit.register(gc.freeze) atexit.register(gc.freeze)
def setup_sentry(hs: "HomeServer") -> None: def setup_sentry(hs: "HomeServer") -> None: