synapse/changelog.d/11240.bugfix at 9799c569bb481622b5882b2008a24e6c4658c431 - mirrors/synapse - Sadium Git

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Sean Quah 8eec25a1d9

Track ongoing event fetches correctly in the presence of failure (#11240 )

When an event fetcher aborts due to an exception, `_event_fetch_ongoing`
must be decremented, otherwise the event fetcher would never be
replaced. If enough event fetchers were to fail, no more events would be
fetched and requests would get stuck waiting for events.

2021-11-04 10:33:53 +00:00

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Fix a long-standing bug where all requests that read events from the database could get stuck as a result of losing the database connection.