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Sean Quah c675a18071 Track ongoing event fetches correctly (again) (#11376 ) The previous fix for the ongoing event fetches counter (`8eec25a1d9`) was both insufficient and incorrect. When the database is unreachable, `_do_fetch` never gets run and so `_event_fetch_ongoing` is never decremented. The previous fix also moved the `_event_fetch_ongoing` decrement outside of the `_event_fetch_lock` which allowed race conditions to corrupt the counter.	2021-11-26 13:47:24 +00:00
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main	…
__init__.py	…

Track ongoing event fetches correctly (again) (#11376 )

The previous fix for the ongoing event fetches counter
(8eec25a1d9) was both insufficient and
incorrect.

When the database is unreachable, `_do_fetch` never gets run and so
`_event_fetch_ongoing` is never decremented.

The previous fix also moved the `_event_fetch_ongoing` decrement outside
of the `_event_fetch_lock` which allowed race conditions to corrupt the
counter.

2021-11-26 13:47:24 +00:00

main

…

__init__.py

…