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authorRichard van der Hoff <richard@matrix.org>2018-06-21 06:15:03 +0100
committerRichard van der Hoff <richard@matrix.org>2018-06-21 06:15:03 +0100
commitb088aafcae71fa61433f92ce0b139802a9cbd304 (patch)
treec3f8063a1a10ce58f78c0f457bd65e394838ffe5 /synapse/util/metrics.py
parentMerge pull request #3416 from matrix-org/rav/restart_indicator (diff)
downloadsynapse-b088aafcae71fa61433f92ce0b139802a9cbd304.tar.xz
Log number of events fetched from DB
When we finish processing a request, log the number of events we fetched from
the database to handle it.

[I'm trying to figure out which requests are responsible for large amounts of
event cache churn. It may turn out to be more helpful to add counts to the
prometheus per-request/block metrics, but that is an extension to this code
anyway.]
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