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authorRichard van der Hoff <richard@matrix.org>2018-01-27 14:00:11 +0000
committerRichard van der Hoff <richard@matrix.org>2018-01-29 17:05:33 +0000
commitb387ee17b68e4398a8fa26fdf122b773a046e429 (patch)
tree840e680214beee50fe117150ddc1847db27d3be2 /UPGRADE.rst
parentMerge pull request #2831 from matrix-org/rav/fix-userdir-search-again (diff)
downloadsynapse-b387ee17b68e4398a8fa26fdf122b773a046e429.tar.xz
Improve exception handling in persist_event
1. use `deferred.errback()` instead of `deferred.errback(e)`, which means that
a Failure object will be constructed using the current exception state,
*including* its stack trace - so the stack trace is saved in the Failure,
leading to better exception reports.

2. Set `consumeErrors=True` on the ObservableDeferred, because we know that
there will always be at least one observer - which avoids a spurious "CRITICAL:
unhandled exception in Deferred" error in the logs
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