Don't invalidate the entire event cache when we purge history #16905
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This allows tracking extra indices in a cache, so that we can invalidate based information other than the key.
anoadragon453
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Feb 13, 2024
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Sounds like you may have quickly solved a huge chunk of #13916?
Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
Ermh, maybe sorta? |
anoadragon453
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Feb 13, 2024
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# Synapse 1.102.0 (2024-03-05) ### Bugfixes - Revert element-hq/synapse#16756, which caused incorrect notification counts on mobile clients since v1.100.0. ([\#16979](element-hq/synapse#16979)) # Synapse 1.102.0rc1 (2024-02-20) ### Features - A metric was added for emails sent by Synapse, broken down by type: `synapse_emails_sent_total`. Contributed by Remi Rampin. ([\#16881](element-hq/synapse#16881)) ### Bugfixes - Do not send multiple concurrent requests for keys for the same server. ([\#16894](element-hq/synapse#16894)) - Fix performance issue when joining very large rooms that can cause the server to lock up. Introduced in v1.100.0. ([\#16903](element-hq/synapse#16903)) - Always prefer unthreaded receipt when >1 exist ([MSC4102](matrix-org/matrix-spec-proposals#4102)). ([\#16927](element-hq/synapse#16927)) ### Improved Documentation - Fix a small typo in the Rooms section of the Admin API documentation. Contributed by @RainerZufall187. ([\#16857](element-hq/synapse#16857)) ### Internal Changes - Don't invalidate the entire event cache when we purge history. ([\#16905](element-hq/synapse#16905)) - Add experimental config option to not send device list updates for specific users. ([\#16909](element-hq/synapse#16909)) - Fix incorrect docker hub link in release script. ([\#16910](element-hq/synapse#16910)) ### Updates to locked dependencies * Bump attrs from 23.1.0 to 23.2.0. ([\#16899](element-hq/synapse#16899)) * Bump bcrypt from 4.0.1 to 4.1.2. ([\#16900](element-hq/synapse#16900)) * Bump pygithub from 2.1.1 to 2.2.0. ([\#16902](element-hq/synapse#16902)) * Bump sentry-sdk from 1.40.0 to 1.40.3. ([\#16898](element-hq/synapse#16898))
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We do this by adding support to the LRU cache for "extra indices" based on the cached value. This allows us to efficiently map from room ID to the cached events and only invalidate those.