Commit Graph

4626 Commits

Author SHA1 Message Date
Patrick Cloke
b2b0c85279
Support providing an index predicate for upserts. (#13822)
This is useful to upsert against a table which has a unique
partial index while avoiding conflicts.
2022-09-15 18:28:48 +00:00
Eric Eastwood
957e3d74fc
Keep track when we try and fail to process a pulled event (#13589)
We can follow-up this PR with:

 1. Only try to backfill from an event if we haven't tried recently -> https://github.com/matrix-org/synapse/issues/13622
 1. When we decide to backfill that event again, process it in the background so it doesn't block and make `/messages` slow when we know it will probably fail again -> https://github.com/matrix-org/synapse/issues/13623
 1. Generally track failures everywhere we try and fail to pull an event over federation -> https://github.com/matrix-org/synapse/issues/13700

Fix https://github.com/matrix-org/synapse/issues/13621

Part of https://github.com/matrix-org/synapse/issues/13356

Mentioned in [internal doc](https://docs.google.com/document/d/1lvUoVfYUiy6UaHB6Rb4HicjaJAU40-APue9Q4vzuW3c/edit#bookmark=id.qv7cj51sv9i5)
2022-09-14 13:57:50 -05:00
Patrick Cloke
666ae87729
Update event push action and receipt tables to support threads. (#13753)
Adds a `thread_id` column to the `event_push_actions`, `event_push_actions_staging`,
and `event_push_summary` tables. This will notifications to be segmented by the thread
in a future pull request. The `thread_id` column stores the root event ID or the special
value `"main"`.

The `thread_id` column for `event_push_actions` and `event_push_summary` is
backfilled with `"main"` for all existing rows. New entries into `event_push_actions`
and `event_push_actions_staging` will get the proper thread ID.

`receipts_linearized` and `receipts_graph` also gain a `thread_id` column, which is similar,
except `NULL` is a special value meaning the receipt is "unthreaded".

See MSC3771 and MSC3773 for where this data will be useful.
2022-09-14 17:11:16 +00:00
Patrick Cloke
f2d12ccabe
Use partial indices on SQLIte. (#13802)
Partial indices have been supported since SQLite 3.8, but Synapse
now requires >= 3.27, so we can enable support for them.

This requires rebuilding previous indices which were partial on
PostgreSQL, but not on SQLite.
2022-09-14 12:01:42 -04:00
reivilibre
6302753012
Deduplicate is_server_notices_room. (#13780) 2022-09-14 15:53:18 +00:00
David Robertson
51a77e990b
Remove incorrect migration file from state logical DB (#13788)
* Remove incorrect migration file from `state` logical DB

The table `ex_outlier_stream` is part of the `main` logical DB; it
should not have been created in the `state` logical DB. We remove this
migration now as a tidy-up.

Note: we cannot `DROP TABLE IF EXISTS ex_outlier_stream` in a new
migration, because some (most) instances of Synapse host both of these
logical DBs on the same DB cluster.

* Changelog
2022-09-14 14:16:12 +01:00
Sean Quah
c73774467e
Fix bug in device list caching when remote users leave rooms (#13749)
When a remote user leaves the last room shared with the homeserver, we
have to mark their device list as unsubscribed, otherwise we would hold
on to a stale device list in our cache. Crucially, the device list would
remain cached even after the remote user rejoined the room, which could
lead to E2EE failures until the next change to the remote user's device
list.

Fixes #13651.

Signed-off-by: Sean Quah <seanq@matrix.org>
2022-09-14 10:42:57 +01:00
Mathieu Velten
12dacecabd
Make sequence cache_invalidation_stream_seq begin at 2 (#13766)
Signed-off-by: Mathieu Velten <mathieuv@matrix.org>
Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
2022-09-13 16:14:28 +02:00
David Robertson
b60d47ab2c
Updates to the schema dump script (#13770) 2022-09-13 10:53:11 +01:00
Nick Mills-Barrett
cdbb641232
Add receipts event stream ordering (#13703) 2022-09-13 08:16:37 +01:00
Nick Mills-Barrett
da41a7cd61
Remove check current state membership up to date (#13745)
* Remove checks for membership column in current_state_events
* Add schema script to force through the
  `current_state_events_membership` background job

Contributed by Nick @ Beeper (@fizzadar).
2022-09-12 12:58:33 +01:00
Patrick Cloke
3d9f82efcb
Use an upsert for receipts_graph. (#13752)
Instead of a delete, then insert.

This was previously done for `receipts_linearized` in
2dc430d36e (#7607).
2022-09-09 07:08:41 -04:00
David Robertson
f2d2481e56
Require SQLite >= 3.27.0 (#13760) 2022-09-09 11:14:10 +01:00
Dirk Klimpel
f799eac7ea
Add timestamp to user's consent (#13741)
Co-authored-by: reivilibre <olivier@librepush.net>
2022-09-08 15:41:48 +00:00
Sean Quah
906cead9ca
Update docstrings to explain the impact of partial state (#13750)
Update the docstrings for `get_users_in_room` and
`get_current_hosts_in_room` to explain the impact of partial state.

Signed-off-by: Sean Quah <seanq@matrix.org>
2022-09-08 15:55:29 +01:00
Sean Quah
89e8b98b65
Avoid raising errors due to malformed IDs in get_current_hosts_in_room (#13748)
Handle malformed user IDs with no colons in `get_current_hosts_in_room`.
It's not currently possible for a malformed user ID to join a room, so
this error would never be hit.

Signed-off-by: Sean Quah <seanq@matrix.org>
2022-09-08 15:55:03 +01:00
Eric Eastwood
d4d3249ded
Instrument get_metadata_for_events for tracing (#13730)
When backfilling, `_get_state_ids_after_missing_prev_event` calls [`get_metadata_for_events`](26bc26586b/synapse/handlers/federation_event.py (L1133)). For `#matrix:matrix.org`, it's called with 77k `state_events` which means 77 calls to the database and takes 28 seconds.
2022-09-07 11:41:52 -05:00
reivilibre
d3d9ca156e
Cancel the processing of key query requests when they time out. (#13680) 2022-09-07 12:03:32 +01:00
reivilibre
c2fe48a6ff
Rename the EventFormatVersions enum values so that they line up with room version numbers. (#13706) 2022-09-07 11:08:20 +01:00
Patrick Cloke
48a5c47a9f
Add a schema delta to drop unstable private read receipts. (#13692)
Otherwise they'll be leaked due to the filtering code only respecting
the stable identifiers for private read receipts.
2022-09-01 14:57:47 -04:00
Erik Johnston
9d2823ab70
Cache is_partial_state_room (#13693)
Fixes #13613.
2022-09-01 16:07:01 +01:00
Šimon Brandner
0e99f07952
Remove support for unstable private read receipts (#13653)
Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>
2022-09-01 13:31:54 +01:00
Nick Mills-Barrett
42b11d5565
Remove cached wrap on _get_joined_users_from_context method (#13569)
The method doesn't actually do any data fetching and the method that
does, `_get_joined_profile_from_event_id`, has its own cache.

Signed off by Nick @ Beeper (@Fizzadar).
2022-08-31 12:19:39 +01:00
David Robertson
a160406d24
Fix admin List Room API return type on sqlite (#13509) 2022-08-31 10:38:16 +00:00
Eric Eastwood
92c5817e34
Give the correct next event when the message timestamps are the same - MSC3030 (#13658)
Discovered while working on https://github.com/matrix-org/synapse/pull/13589 and I had all the messages at the same timestamp in the tests.

Part of https://github.com/matrix-org/matrix-spec-proposals/pull/3030

Complement tests: https://github.com/matrix-org/complement/pull/457
2022-08-30 14:50:06 -05:00
Shay
20c76cecb9
Drop unused column application_services_state.last_txn (#13627) 2022-08-30 10:29:16 -07:00
Patrick Cloke
20df96a7a7
Speed up inserting event_push_actions_staging. (#13634)
By using `execute_values` instead of `execute_batch`.
2022-08-30 07:12:48 -04:00
Eric Eastwood
51d732db3b
Optimize how we calculate likely_domains during backfill (#13575)
Optimize how we calculate `likely_domains` during backfill because I've seen this take 17s in production just to `get_current_state` which is used to `get_domains_from_state` (see case [*2. Loading tons of events* in the `/messages` investigation issue](https://github.com/matrix-org/synapse/issues/13356)).

There are 3 ways we currently calculate hosts that are in the room:

 1. `get_current_state` -> `get_domains_from_state`
    - Used in `backfill` to calculate `likely_domains` and `/timestamp_to_event` because it was cargo-culted from `backfill`
    - This one is being eliminated in favor of `get_current_hosts_in_room` in this PR 🕳
 1. `get_current_hosts_in_room`
    - Used for other federation things like sending read receipts and typing indicators
 1. `get_hosts_in_room_at_events`
    - Used when pushing out events over federation to other servers in the `_process_event_queue_loop`

Fix https://github.com/matrix-org/synapse/issues/13626

Part of https://github.com/matrix-org/synapse/issues/13356

Mentioned in [internal doc](https://docs.google.com/document/d/1lvUoVfYUiy6UaHB6Rb4HicjaJAU40-APue9Q4vzuW3c/edit#bookmark=id.2tvwz3yhcafh)


### Query performance

#### Before

The query from `get_current_state` sucks just because we have to get all 80k events. And we see almost the exact same performance locally trying to get all of these events (16s vs 17s):
```
synapse=# SELECT type, state_key, event_id FROM current_state_events WHERE room_id = '!OGEhHVWSdvArJzumhm:matrix.org';
Time: 16035.612 ms (00:16.036)

synapse=# SELECT type, state_key, event_id FROM current_state_events WHERE room_id = '!OGEhHVWSdvArJzumhm:matrix.org';
Time: 4243.237 ms (00:04.243)
```

But what about `get_current_hosts_in_room`: When there is 8M rows in the `current_state_events` table, the previous query in `get_current_hosts_in_room` took 13s from complete freshness (when the events were first added). But takes 930ms after a Postgres restart or 390ms if running back to back to back.

```sh
$ psql synapse
synapse=# \timing on
synapse=# SELECT COUNT(DISTINCT substring(state_key FROM '@[^:]*:(.*)$'))
FROM current_state_events
WHERE
    type = 'm.room.member'
    AND membership = 'join'
    AND room_id = '!OGEhHVWSdvArJzumhm:matrix.org';
 count
-------
  4130
(1 row)

Time: 13181.598 ms (00:13.182)

synapse=# SELECT COUNT(*) from current_state_events where room_id = '!OGEhHVWSdvArJzumhm:matrix.org';
 count
-------
 80814

synapse=# SELECT COUNT(*) from current_state_events;
  count
---------
 8162847

synapse=# SELECT pg_size_pretty( pg_total_relation_size('current_state_events') );
 pg_size_pretty
----------------
 4702 MB
```

#### After

I'm not sure how long it takes from complete freshness as I only really get that opportunity once (maybe restarting computer but that's cumbersome) and it's not really relevant to normal operating times. Maybe you get closer to the fresh times the more access variability there is so that Postgres caches aren't as exact. Update: The longest I've seen this run for is 6.4s and 4.5s after a computer restart.

After a Postgres restart, it takes 330ms and running back to back takes 260ms.

```sh
$ psql synapse
synapse=# \timing on
Timing is on.
synapse=# SELECT
    substring(c.state_key FROM '@[^:]*:(.*)$') as host
FROM current_state_events c
/* Get the depth of the event from the events table */
INNER JOIN events AS e USING (event_id)
WHERE
    c.type = 'm.room.member'
    AND c.membership = 'join'
    AND c.room_id = '!OGEhHVWSdvArJzumhm:matrix.org'
GROUP BY host
ORDER BY min(e.depth) ASC;
Time: 333.800 ms
```

#### Going further

To improve things further we could add a `limit` parameter to `get_current_hosts_in_room`. Realistically, we don't need 4k domains to choose from because there is no way we're going to query that many before we a) probably get an answer or b) we give up. 

Another thing we can do is optimize the query to use a index skip scan:

 - https://wiki.postgresql.org/wiki/Loose_indexscan
 - Index Skip Scan, https://commitfest.postgresql.org/37/1741/
 - https://www.timescale.com/blog/how-we-made-distinct-queries-up-to-8000x-faster-on-postgresql/
2022-08-30 01:38:14 -05:00
Eric Eastwood
d58615c82c
Directly lookup local membership instead of getting all members in a room first (get_users_in_room mis-use) (#13608)
See https://github.com/matrix-org/synapse/pull/13575#discussion_r953023755
2022-08-24 14:13:12 -05:00
Eric Eastwood
b93bd95e8a
When loading current ids, sort by stream_id to avoid incorrect overwrite and avoid errors caused by sorting alphabetical instance name which can be null (#13585)
When loading current ids, sort by stream ID so that we don't want to overwrite the `current_position` of an instance to a lower stream ID than we're actually at ([discussion](https://github.com/matrix-org/synapse/pull/13585#discussion_r951795379)). Previously, it sorted alphabetically by instance name which can be `null` and throw errors but more importantly, accomplishes nothing.

Fixes the following startup error which is why I started looking into this area:

```
$ poetry run synapse_homeserver --config-path homeserver.yaml
****************************************************************
 Error during initialisation:
    '<' not supported between instances of 'NoneType' and 'str'
 There may be more information in the logs.
****************************************************************
```

Somehow my database ended up looking like the following, notice the `instance_name` is `null` in the db, and we can't sort `NoneType` things. Another question is why do we see the `instance_name` as `null` sometimes instead of `master` in monolith mode?
```
$ psql synapse
synapse=# SELECT * FROM stream_positions;
   stream_name   | instance_name | stream_id
-----------------+---------------+-----------
 account_data    | master        |      1242
 events          | master        |      1787
 to_device       | master        |        58
 presence_stream | master        |    485638
 receipts        | master        |       341
 backfill        | master        |   -139106
(6 rows)
synapse=# SELECT instance_name, stream_id FROM receipts_linearized;
 instance_name | stream_id
---------------+-----------
               |       211
               |         3
               |         4
               |       212
               |       213
               |       224
               |       228
               |       164
               |       313
               |       253
               |        38
               |       321
               |       324
               |       189
               |       192
               |       193
               |       194
               |       195
               |       197
               |       198
               |       275
               |        79
               |       339
               |       340
               |        82
               |       341
               |        84
               |        85
               |        91
               |       119
```
2022-08-24 12:53:46 -05:00
Nick Mills-Barrett
b687010f89
Rewrite get push actions queries (#13597) 2022-08-24 10:12:51 +01:00
Erik Johnston
05c9c7363b
Fix regression caused by #13573 (#13600)
Broke in #13573.
2022-08-23 14:14:05 +00:00
Erik Johnston
aec87a0f93
Speed up fetching large numbers of push rules (#13592) 2022-08-23 13:15:43 +01:00
Nick Mills-Barrett
5e7847dc92
Cache user IDs instead of profile objects (#13573)
The profile objects are never used and increase cache size significantly.
2022-08-23 09:49:59 +00:00
Quentin Gliech
3dd175b628
synapse.api.auth.Auth cleanup: make permission-related methods use Requester instead of the UserID (#13024)
Part of #13019

This changes all the permission-related methods to rely on the Requester instead of the UserID. This is a first step towards enabling scoped access tokens at some point, since I expect the Requester to have scope-related informations in it.

It also changes methods which figure out the user/device/appservice out of the access token to return a Requester instead of something else. This avoids having store-related objects in the methods signatures.
2022-08-22 14:17:59 +01:00
Sean Quah
84169a82dc
Avoid blocking lazy-loading /syncs during partial joins (#13477)
Use a state filter or accept partial state in a few places where we
request state, to avoid blocking.

To make lazy-loading `/sync`s work, we need to provide the memberships
of event senders, which are not guaranteed to be in the room state.
Instead we dig through auth events for memberships to present to
clients. The auth events of an event are guaranteed to contain a
passable membership event, otherwise the event would have been rejected.

Note that this only covers the common code paths encountered during
testing. There has been no exhaustive checking of all sync code paths.

Fixes #13146.

Signed-off-by: Sean Quah <seanq@matrix.org>
2022-08-18 11:53:02 +01:00
reivilibre
8bdf2bd31e
Fix a bug in the /event_reports Admin API which meant that the total count could be larger than the number of results you can actually query for. (#13525)
Co-authored-by: Brendan Abolivier <babolivier@matrix.org>
2022-08-17 18:08:23 +00:00
Dirk Klimpel
d75512d19e
Add forgotten status to Room Details API (#13503) 2022-08-17 09:42:01 +00:00
Eric Eastwood
0a4efbc1dd
Instrument the federation/backfill part of /messages (#13489)
Instrument the federation/backfill part of `/messages` so it's easier to follow what's going on in Jaeger when viewing a trace.

Split out from https://github.com/matrix-org/synapse/pull/13440

Follow-up from https://github.com/matrix-org/synapse/pull/13368

Part of https://github.com/matrix-org/synapse/issues/13356
2022-08-16 12:39:40 -05:00
reivilibre
c3516e9dec
Faster room joins: make /joined_members block whilst the room is partial stated. (#13514) 2022-08-16 13:16:56 +01:00
Erik Johnston
5442891cbc
Make push rules use proper structures. (#13522)
This improves load times for push rules:

| Version              | Time per user | Time for 1k users | 
| -------------------- | ------------- | ----------------- |
| Before               |       138 µs  |             138ms |
| Now (with custom)    |       2.11 µs |            2.11ms |
| Now (without custom) |       49.7 ns |           0.05 ms |

This therefore has a large impact on send times for rooms
with large numbers of local users in the room.
2022-08-16 12:22:17 +01:00
Eric Eastwood
344a2f767c
Instrument FederationStateIdsServlet - /state_ids (#13499)
Instrument FederationStateIdsServlet - `/state_ids` so it's easier to follow what's going on in Jaeger when viewing a trace.
2022-08-15 19:41:23 +01:00
David Robertson
19e5d44886
Revert "Update locked versions of mypy and mypy-zope (#13521)"
This reverts commit f383b9b3ec. Other PRs
were seeing mypy failures that looked to be related to mypy-zope.
Confusingly, we didn't see this on #13521.

Revert this for now and investigate later.
2022-08-15 14:51:05 +01:00
Patrick Cloke
46bd7f4ed9
Clarifications for event push action processing. (#13485)
* Clarifies comments.
* Fixes an erroneous comment (about return type) added in #13455
  (ec24813220).
* Clarifies the name of a variable.
* Simplifies logic of pulling out the latest join for the requesting user.
2022-08-15 09:33:17 -04:00
David Robertson
f383b9b3ec
Update locked versions of mypy and mypy-zope (#13521) 2022-08-15 11:32:30 +01:00
Richard van der Hoff
507c1cb330
Update the rejected state of events during resync (#13459)
Events can be un-rejected or newly-rejected during resync, so ensure we update
the database and caches when that happens.
2022-08-11 10:42:24 +00:00
Šimon Brandner
ab18441573
Support stable identifiers for MSC2285: private read receipts. (#13273)
This adds support for the stable identifiers of MSC2285 while
continuing to support the unstable identifiers behind the configuration
flag. These will be removed in a future version.
2022-08-05 11:09:33 -04:00
Erik Johnston
b6a6bb4027
Add comments about how event push actions are stored. (#13445) 2022-08-04 19:38:08 +00:00
Patrick Cloke
ec24813220
Improve comments (& avoid a duplicate query) in push actions processing. (#13455)
* Adds docstrings and inline comments.
* Formats SQL queries using triple quoted strings.
* Minor formatting changes.
* Avoid fetching `event_push_summary_stream_ordering` multiple times
  in the same transactions.
2022-08-04 19:24:44 +00:00
Richard van der Hoff
96d92156d0
Update type of EventContext.rejected (#13460) 2022-08-04 17:45:01 +01:00