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Merge branch 'erikj/fix_stalled_catchup' into matrix-org-hotfixes

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Erik Johnston 2021-04-08 18:05:22 +01:00
parent fbcc8703dc 3a569fb200
commit 053c8c019f
2 changed files with 5 additions and 2 deletions
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1
changelog.d/9770.bugfix Normal file
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@ -0,0 +1 @@
Fix bug where sharded federation senders could get stuck repeatedly querying the DB in a loop, using lots of CPU.

6
synapse/federation/sender/__init__.py
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@ -734,16 +734,18 @@ class FederationSender(AbstractFederationSender):
self._catchup_after_startup_timer = None
break
last_processed = destinations_to_wake[-1]
destinations_to_wake = [
d
for d in destinations_to_wake
if self._federation_shard_config.should_handle(self._instance_name, d)
]
for last_processed in destinations_to_wake:
for destination in destinations_to_wake:
logger.info(
"Destination %s has outstanding catch-up, waking up.",
last_processed,
)
self.wake_destination(last_processed)
self.wake_destination(destination)
await self.clock.sleep(CATCH_UP_STARTUP_INTERVAL_SEC)