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authorRichard van der Hoff <1389908+richvdh@users.noreply.github.com>2022-04-26 10:27:11 +0100
committerGitHub <noreply@github.com>2022-04-26 10:27:11 +0100
commit17d99f758a768b886842cf496ff236fbe3829236 (patch)
treebd2c3b7f5cf2386d33d4224f9e2533611f288f08 /changelog.d
parentAdd a table of contents to config manual (#12527) (diff)
downloadsynapse-17d99f758a768b886842cf496ff236fbe3829236.tar.xz
Optimise backfill calculation (#12522)
Try to avoid an OOM by checking fewer extremities.

Generally this is a big rewrite of _maybe_backfill, to try and fix some of the TODOs and other problems in it. It's best reviewed commit-by-commit.
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+Fix a bug introduced in Synapse 0.99.3 which could cause Synapse to consume large amounts of RAM when back-paginating in a large room.