forked-synapse/synapse/storage
Eric Eastwood 29269d9d3f
Fix have_seen_event cache not being invalidated (#13863)
Fix https://github.com/matrix-org/synapse/issues/13856
Fix https://github.com/matrix-org/synapse/issues/13865

> Discovered while trying to make Synapse fast enough for [this MSC2716 test for importing many batches](https://github.com/matrix-org/complement/pull/214#discussion_r741678240). As an example, disabling the `have_seen_event` cache saves 10 seconds for each `/messages` request in that MSC2716 Complement test because we're not making as many federation requests for `/state` (speeding up `have_seen_event` itself is related to https://github.com/matrix-org/synapse/issues/13625) 
> 
> But this will also make `/messages` faster in general so we can include it in the [faster `/messages` milestone](https://github.com/matrix-org/synapse/milestone/11).
> 
> *-- https://github.com/matrix-org/synapse/issues/13856*


### The problem

`_invalidate_caches_for_event` doesn't run in monolith mode which means we never even tried to clear the `have_seen_event` and other caches. And even in worker mode, it only runs on the workers, not the master (AFAICT).

Additionally there was bug with the key being wrong so `_invalidate_caches_for_event` never invalidates the `have_seen_event` cache even when it does run.

Because we were using the `@cachedList` wrong, it was putting items in the cache under keys like `((room_id, event_id),)` with a `set` in a `set` (ex. `(('!TnCIJPKzdQdUlIyXdQ:test', '$Iu0eqEBN7qcyF1S9B3oNB3I91v2o5YOgRNPwi_78s-k'),)`) and we we're trying to invalidate with just `(room_id, event_id)` which did nothing.
2022-09-27 15:55:43 -05:00
..
controllers Handle the case of remote users leaving a partial join room for device lists (#13885) 2022-09-27 13:01:08 +01:00
databases Fix have_seen_event cache not being invalidated (#13863) 2022-09-27 15:55:43 -05:00
engines Snapshot schema 72 (#13873) 2022-09-26 18:28:32 +01:00
schema Add new columns tracking when we partial-joined (#13892) 2022-09-27 17:26:35 +01:00
util Cancel the processing of key query requests when they time out. (#13680) 2022-09-07 12:03:32 +01:00
__init__.py Rename storage classes (#12913) 2022-05-31 12:17:50 +00:00
_base.py Simplify cache invalidation after event persist txn (#13796) 2022-09-26 16:26:35 +01:00
background_updates.py Generate separate snapshots for logical databases (#13792) 2022-09-20 14:14:12 +01:00
database.py Snapshot schema 72 (#13873) 2022-09-26 18:28:32 +01:00
keys.py Use auto_attribs/native type hints for attrs classes. (#11692) 2022-01-13 13:49:28 +00:00
prepare_database.py Snapshot schema 72 (#13873) 2022-09-26 18:28:32 +01:00
push_rule.py Remove redundant "coding: utf-8" lines (#9786) 2021-04-14 15:34:27 +01:00
roommember.py Do not include rooms with an unknown room version in a sync response. (#10644) 2021-08-19 11:12:55 -04:00
state.py Update the rejected state of events during resync (#13459) 2022-08-11 10:42:24 +00:00
types.py Tidy up and type-hint the database engine modules (#12734) 2022-05-17 00:34:38 +01:00