Sean Quah c675a18071

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

The previous fix for the ongoing event fetches counter
(8eec25a1d9d656905db18a2c62a5552e63db2667) 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

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

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

__init__.py

add a cache to have_seen_event (#9953)

2021-06-01 12:04:47 +01:00