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Speed up get_unread_event_push_actions_by_room #13005

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@erikjohnston erikjohnston commented Jun 9, 2022

Fixes #11887 hopefully.

The core change here is that event_push_summary now holds a summary of counts up until a much more recent point, meaning that the range of rows we need to count in event_push_actions is much smaller.

This needs two major changes:

  1. When we get a receipt we need to recalculate event_push_summary rather than just delete it
  2. The logic for deleting event_push_actions is now divorced from calculating event_push_summary.

In future it would be good to calculate event_push_summary while we persist a new event (it should just be a case of adding one to the relevant rows in event_push_summary), as that will further simplify the get counts logic and remove the need for us to periodically update event_push_summary in a background job.


Reviewable commit-by-commit.

Complement test failure should be fixed by: matrix-org/complement#393

@erikjohnston erikjohnston force-pushed the erikj/more_aggressive_push_summaries branch 6 times, most recently from 03eb606 to 53a6974 Compare June 9, 2022 13:44
@erikjohnston erikjohnston force-pushed the erikj/more_aggressive_push_summaries branch from 53a6974 to f72464e Compare June 10, 2022 15:46
@erikjohnston erikjohnston marked this pull request as ready for review June 13, 2022 09:13
@erikjohnston erikjohnston requested a review from a team as a code owner June 13, 2022 09:13
@squahtx squahtx self-assigned this Jun 13, 2022
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Comment on lines 162 to 163
receipt_type: The receipt types to fetch. Earlier receipt types
are given priority if multiple receipts point to the same event.
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It's no longer true that earlier receipt types in receipt_types get priority.
Same for the docstring for get_last_receipt_event_id_for_user.

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Not that it matters anyway, since we don't return the receipt type.

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Woops

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Could we update the docstring for get_last_receipt_event_id_for_user as well?

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And woops that I missed this comment

@erikjohnston erikjohnston requested a review from squahtx June 15, 2022 09:23
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One last docstring suggestion: #13005 (comment)

otherwise I think it's good to merge!

@erikjohnston erikjohnston enabled auto-merge (squash) June 15, 2022 14:35
@erikjohnston erikjohnston merged commit 0d1d3e0 into develop Jun 15, 2022
@erikjohnston erikjohnston deleted the erikj/more_aggressive_push_summaries branch June 15, 2022 15:17
erikjohnston added a commit that referenced this pull request Jul 8, 2022
erikjohnston added a commit that referenced this pull request Jul 8, 2022
Fizzadar added a commit to beeper/synapse-legacy-fork that referenced this pull request Aug 23, 2022
Synapse 1.62.0 (2022-07-05)
===========================

No significant changes since 1.62.0rc3.

Authors of spam-checker plugins should consult the [upgrade notes](https://github.com/matrix-org/synapse/blob/release-v1.62/docs/upgrade.md#upgrading-to-v1620) to learn about the enriched signatures for spam checker callbacks, which are supported with this release of Synapse.

Synapse 1.62.0rc3 (2022-07-04)
==============================

Bugfixes
--------

- Update the version of the [ldap3 plugin](https://github.com/matrix-org/matrix-synapse-ldap3/) included in the `matrixdotorg/synapse` DockerHub images and the Debian packages hosted on `packages.matrix.org` to 0.2.1. This fixes [a bug](matrix-org/matrix-synapse-ldap3#163) with usernames containing uppercase characters. ([\matrix-org#13156](matrix-org#13156))
- Fix a bug introduced in Synapse 1.62.0rc1 affecting unread counts for users on small servers. ([\matrix-org#13168](matrix-org#13168))

Synapse 1.62.0rc2 (2022-07-01)
==============================

Bugfixes
--------

- Fix unread counts for users on large servers. Introduced in v1.62.0rc1. ([\matrix-org#13140](matrix-org#13140))
- Fix DB performance when deleting old push notifications. Introduced in v1.62.0rc1. ([\matrix-org#13141](matrix-org#13141))

Synapse 1.62.0rc1 (2022-06-28)
==============================

Features
--------

- Port the spam-checker API callbacks to a new, richer API. This is part of an ongoing change to let spam-checker modules inform users of the reason their event or operation is rejected. ([\matrix-org#12857](matrix-org#12857), [\matrix-org#13047](matrix-org#13047))
- Allow server admins to customise the response of the `/.well-known/matrix/client` endpoint. ([\matrix-org#13035](matrix-org#13035))
- Add metrics measuring the CPU and DB time spent in state resolution. ([\matrix-org#13036](matrix-org#13036))
- Speed up fetching of device list changes in `/sync` and `/keys/changes`. ([\matrix-org#13045](matrix-org#13045), [\matrix-org#13098](matrix-org#13098))
- Improve URL previews for sites which only provide Twitter Card metadata, e.g. LWN.net. ([\matrix-org#13056](matrix-org#13056))

Bugfixes
--------

- Update [MSC3786](matrix-org/matrix-spec-proposals#3786) implementation to check `state_key`. ([\matrix-org#12939](matrix-org#12939))
- Fix a bug introduced in Synapse 1.58 where Synapse would not report full version information when installed from a git checkout. This is a best-effort affair and not guaranteed to be stable. ([\matrix-org#12973](matrix-org#12973))
- Fix a bug introduced in Synapse 1.60 where Synapse would fail to start if the `sqlite3` module was not available. ([\matrix-org#12979](matrix-org#12979))
- Fix a bug where non-standard information was required when requesting the `/hierarchy` API over federation. Introduced
  in Synapse v1.41.0. ([\matrix-org#12991](matrix-org#12991))
- Fix a long-standing bug which meant that rate limiting was not restrictive enough in some cases. ([\matrix-org#13018](matrix-org#13018))
- Fix a bug introduced in Synapse 1.58 where profile requests for a malformed user ID would ccause an internal error. Synapse now returns 400 Bad Request in this situation. ([\matrix-org#13041](matrix-org#13041))
- Fix some inconsistencies in the event authentication code. ([\matrix-org#13087](matrix-org#13087), [\matrix-org#13088](matrix-org#13088))
- Fix a long-standing bug where room directory requests would cause an internal server error if given a malformed room alias. ([\matrix-org#13106](matrix-org#13106))

Improved Documentation
----------------------

- Add documentation for how to configure Synapse with Workers using Docker Compose. Includes example worker config and docker-compose.yaml. Contributed by @Thumbscrew. ([\matrix-org#12737](matrix-org#12737))
- Ensure the [Poetry cheat sheet](https://matrix-org.github.io/synapse/develop/development/dependencies.html) is available in the online documentation. ([\matrix-org#13022](matrix-org#13022))
- Mention removed community/group worker endpoints in upgrade.md. Contributed by @olmari. ([\matrix-org#13023](matrix-org#13023))
- Add instructions for running Complement with `gotestfmt`-formatted output locally. ([\matrix-org#13073](matrix-org#13073))
- Update OpenTracing docs to reference the configuration manual rather than the configuration file. ([\matrix-org#13076](matrix-org#13076))
- Update information on downstream Debian packages. ([\matrix-org#13095](matrix-org#13095))
- Remove documentation for the Delete Group Admin API which no longer exists. ([\matrix-org#13112](matrix-org#13112))

Deprecations and Removals
-------------------------

- Remove the unspecced `DELETE /directory/list/room/{roomId}` endpoint, which hid rooms from the [public room directory](https://spec.matrix.org/v1.3/client-server-api/#listing-rooms). Instead, `PUT` to the same URL with a visibility of `"private"`. ([\matrix-org#13123](matrix-org#13123))

Internal Changes
----------------

- Add tests for cancellation of `GET /rooms/$room_id/members` and `GET /rooms/$room_id/state` requests. ([\matrix-org#12674](matrix-org#12674))
- Report login failures due to unknown third party identifiers in the same way as failures due to invalid passwords. This prevents an attacker from using the error response to determine if the identifier exists. Contributed by Daniel Aloni. ([\matrix-org#12738](matrix-org#12738))
- Merge the Complement testing Docker images into a single, multi-purpose image. ([\matrix-org#12881](matrix-org#12881), [\matrix-org#13075](matrix-org#13075))
- Simplify the database schema for `event_edges`. ([\matrix-org#12893](matrix-org#12893))
- Clean up the test code for client disconnection. ([\matrix-org#12929](matrix-org#12929))
- Remove code generating comments in configuration. ([\matrix-org#12941](matrix-org#12941))
- Add `Cross-Origin-Resource-Policy: cross-origin` header to content repository's thumbnail and download endpoints. ([\matrix-org#12944](matrix-org#12944))
- Replace noop background updates with `DELETE` delta. ([\matrix-org#12954](matrix-org#12954), [\matrix-org#13050](matrix-org#13050))
- Use lower isolation level when inserting read receipts to avoid serialization errors. Contributed by Nick @ Beeper. ([\matrix-org#12957](matrix-org#12957))
- Reduce the amount of state we pull from the DB. ([\matrix-org#12963](matrix-org#12963))
- Enable testing against PostgreSQL databases in Complement CI. ([\matrix-org#12965](matrix-org#12965), [\matrix-org#13034](matrix-org#13034))
- Fix an inaccurate comment. ([\matrix-org#12969](matrix-org#12969))
- Remove the `delete_device` method and always call `delete_devices`. ([\matrix-org#12970](matrix-org#12970))
- Use a GitHub form for issues rather than a hard-to-read, easy-to-ignore template. ([\matrix-org#12982](matrix-org#12982))
- Move [MSC3715](matrix-org/matrix-spec-proposals#3715) behind an experimental config flag. ([\matrix-org#12984](matrix-org#12984))
- Add type hints to tests. ([\matrix-org#12985](matrix-org#12985), [\matrix-org#13099](matrix-org#13099))
- Refactor macaroon tokens generation and move the unsubscribe link in notification emails to `/_synapse/client/unsubscribe`. ([\matrix-org#12986](matrix-org#12986))
- Fix documentation for running complement tests. ([\matrix-org#12990](matrix-org#12990))
- Faster joins: add issue links to the TODO comments in the code. ([\matrix-org#13004](matrix-org#13004))
- Reduce DB usage of `/sync` when a large number of unread messages have recently been sent in a room. ([\matrix-org#13005](matrix-org#13005), [\matrix-org#13096](matrix-org#13096), [\matrix-org#13118](matrix-org#13118))
- Replaced usage of PyJWT with methods from Authlib in `org.matrix.login.jwt`. Contributed by Hannes Lerchl. ([\matrix-org#13011](matrix-org#13011))
- Modernize the `contrib/graph/` scripts. ([\matrix-org#13013](matrix-org#13013))
- Remove redundant `room_version` parameters from event auth functions. ([\matrix-org#13017](matrix-org#13017))
- Decouple `synapse.api.auth_blocking.AuthBlocking` from `synapse.api.auth.Auth`. ([\matrix-org#13021](matrix-org#13021))
- Add type annotations to `synapse.storage.databases.main.devices`. ([\matrix-org#13025](matrix-org#13025))
- Set default `sync_response_cache_duration` to two minutes. ([\matrix-org#13042](matrix-org#13042))
- Rename CI test runs. ([\matrix-org#13046](matrix-org#13046))
- Increase timeout of complement CI test runs. ([\matrix-org#13048](matrix-org#13048))
- Refactor entry points so that they all have a `main` function. ([\matrix-org#13052](matrix-org#13052))
- Refactor the Dockerfile-workers configuration script to use Jinja2 templates in Synapse workers' Supervisord blocks. ([\matrix-org#13054](matrix-org#13054))
- Add headers to individual options in config documentation to allow for linking. ([\matrix-org#13055](matrix-org#13055))
- Make Complement CI logs easier to read. ([\matrix-org#13057](matrix-org#13057), [\matrix-org#13058](matrix-org#13058), [\matrix-org#13069](matrix-org#13069))
- Don't instantiate modules with keyword arguments. ([\matrix-org#13060](matrix-org#13060))
- Fix type checking errors against Twisted trunk. ([\matrix-org#13061](matrix-org#13061))
- Allow MSC3030 `timestamp_to_event` calls from anyone on world-readable rooms. ([\matrix-org#13062](matrix-org#13062))
- Add a CI job to check that schema deltas are in the correct folder. ([\matrix-org#13063](matrix-org#13063))
- Avoid rechecking event auth rules which are independent of room state. ([\matrix-org#13065](matrix-org#13065))
- Reduce the duplication of code that invokes the rate limiter. ([\matrix-org#13070](matrix-org#13070))
- Add a Subject Alternative Name to the certificate generated for Complement tests. ([\matrix-org#13071](matrix-org#13071))
- Add more tests for room upgrades. ([\matrix-org#13074](matrix-org#13074))
- Pin dependencies maintained by matrix.org to [semantic version](https://semver.org/) bounds. ([\matrix-org#13082](matrix-org#13082))
- Correctly report prometheus DB stats for `get_earliest_token_for_stats`. ([\matrix-org#13085](matrix-org#13085))
- Fix a long-standing bug where a finished logging context would be re-started when Synapse failed to persist an event from federation. ([\matrix-org#13089](matrix-org#13089))
- Simplify the alias deletion logic as an application service. ([\matrix-org#13093](matrix-org#13093))
- Add type annotations to `tests.test_server`. ([\matrix-org#13124](matrix-org#13124))
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Database transaction get_unread_event_push_actions_by_room churns database CPU
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