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author | Richard van der Hoff <richard@matrix.org> | 2018-04-27 11:07:40 +0100 |
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committer | Richard van der Hoff <richard@matrix.org> | 2018-04-27 11:07:40 +0100 |
commit | 9255a6cb17716c022ebae1dbe9c142b78ca86ea7 (patch) | |
tree | 185b1b00af216695daca391eb62a871e78d32e49 /MANIFEST.in | |
parent | Merge pull request #3134 from matrix-org/erikj/fix_admin_media_api (diff) | |
download | synapse-9255a6cb17716c022ebae1dbe9c142b78ca86ea7.tar.xz |
Improve exception handling for background processes
There were a bunch of places where we fire off a process to happen in the background, but don't have any exception handling on it - instead relying on the unhandled error being logged when the relevent deferred gets garbage-collected. This is unsatisfactory for a number of reasons: - logging on garbage collection is best-effort and may happen some time after the error, if at all - it can be hard to figure out where the error actually happened. - it is logged as a scary CRITICAL error which (a) I always forget to grep for and (b) it's not really CRITICAL if a background process we don't care about fails. So this is an attempt to add exception handling to everything we fire off into the background.
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