Commit Graph

3861 Commits

Author SHA1 Message Date
Erik Johnston
fa8934b175 Reduce serialization errors in MultiWriterIdGen (#8456)
We call `_update_stream_positions_table_txn` a lot, which is an UPSERT
that can conflict in `REPEATABLE READ` isolation level. Instead of doing
a transaction consisting of a single query we may as well run it outside
of a transaction.
2020-10-07 17:08:58 +01:00
Erik Johnston
695240d34a
Fix DB query on startup for negative streams. (#8447)
For negative streams we have to negate the internal stream ID before
querying the DB.

The effect of this bug was to query far too many rows, slowing start up
time, but we would correctly filter the results afterwards so there was
no ill effect.
2020-10-02 12:22:19 +01:00
Erik Johnston
7941372ec8
Make token serializing/deserializing async (#8427)
The idea is that in future tokens will encode a mapping of instance to position. However, we don't want to include the full instance name in the string representation, so instead we'll have a mapping between instance name and an immutable integer ID in the DB that we can use instead. We'll then do the lookup when we serialize/deserialize the token (we could alternatively pass around an `Instance` type that includes both the name and ID, but that turns out to be a lot more invasive).
2020-09-30 20:29:19 +01:00
Richard van der Hoff
20e7c4de26 Add an improved "forward extremities" metric
Hopefully, N(extremities) * N(state_events) is a more realistic approximation
to "how big a problem is this room?".
2020-09-30 16:49:15 +01:00
Richard van der Hoff
6d2d42f8fb Rewrite BucketCollector
This was a bit unweildy for what I wanted: in particular, I wanted to assign
each measurement straight into a bucket, rather than storing an intermediate
Counter which didn't do any bucketing at all.

I've replaced it with something that is hopefully a bit easier to use.

(I'm not entirely sure what the difference between a HistogramMetricFamily and
a GaugeHistogramMetricFamily is, but given our counters can go down as well as
up the latter *sounds* more accurate?)
2020-09-30 16:49:15 +01:00
Erik Johnston
ea70f1c362
Various clean ups to room stream tokens. (#8423) 2020-09-29 21:48:33 +01:00
Erik Johnston
b1433bf231
Don't table scan events on worker startup (#8419)
* Fix table scan of events on worker startup.

This happened because we assumed "new" writers had an initial stream
position of 0, so the replication code tried to fetch all events written
by the instance between 0 and the current position.

Instead, set the initial position of new writers to the current
persisted up to position, on the assumption that new writers won't have
written anything before that point.

* Consider old writers coming back as "new".

Otherwise we'd try and fetch entries between the old stale token and the
current position, even though it won't have written any rows.

Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>

Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
2020-09-29 16:42:19 +01:00
Richard van der Hoff
2649d545a5
Mypy fixes for synapse.handlers.federation (#8422)
For some reason, an apparently unrelated PR upset mypy about this module. Here are a number of little fixes.
2020-09-29 15:57:36 +01:00
Will Hunt
8676d8ab2e
Filter out appservices from mau count (#8404)
This is an attempt to fix #8403.
2020-09-29 13:11:02 +01:00
Erik Johnston
bd380d942f
Add checks for postgres sequence consistency (#8402) 2020-09-28 18:00:30 +01:00
Matthew Hodgson
4b3a1faa08 typo 2020-09-28 00:23:35 +01:00
Tdxdxoz
abd04b6af0
Allow existing users to login via OpenID Connect. (#8345)
Co-authored-by: Benjamin Koch <bbbsnowball@gmail.com>

This adds configuration flags that will match a user to pre-existing users
when logging in via OpenID Connect. This is useful when switching to
an existing SSO system.
2020-09-25 07:01:45 -04:00
Erik Johnston
3e87d79e1c
Fix schema delta for servers that have not backfilled (#8396)
Fixes #8395.
2020-09-25 09:58:32 +01:00
Erik Johnston
f112cfe5bb
Fix MultiWriteIdGenerator's handling of restarts. (#8374)
On startup `MultiWriteIdGenerator` fetches the maximum stream ID for
each instance from the table and uses that as its initial "current
position" for each writer. This is problematic as a) it involves either
a scan of events table or an index (neither of which is ideal), and b)
if rows are being persisted out of order elsewhere while the process
restarts then using the maximum stream ID is not correct. This could
theoretically lead to race conditions where e.g. events that are
persisted out of order are not sent down sync streams.

We fix this by creating a new table that tracks the current positions of
each writer to the stream, and update it each time we finish persisting
a new entry. This is a relatively small overhead when persisting events.
However for the cache invalidation stream this is a much bigger relative
overhead, so instead we note that for invalidation we don't actually
care about reliability over restarts (as there's no caches to
invalidate) and simply don't bother reading and writing to the new table
in that particular case.
2020-09-24 16:53:51 +01:00
Erik Johnston
ac11fcbbb8
Add EventStreamPosition type (#8388)
The idea is to remove some of the places we pass around `int`, where it can represent one of two things:

1. the position of an event in the stream; or
2. a token that partitions the stream, used as part of the stream tokens.

The valid operations are then:

1. did a position happen before or after a token;
2. get all events that happened before or after a token; and
3. get all events between two tokens.

(Note that we don't want to allow other operations as we want to change the tokens to be vector clocks rather than simple ints)
2020-09-24 13:24:17 +01:00
Richard van der Hoff
302dc89f6a
Fix bug which caused failure on join with malformed membership events (#8385) 2020-09-23 16:42:14 +01:00
Erik Johnston
cbabb312e0
Use async with for ID gens (#8383)
This will allow us to hit the DB after we've finished using the generated stream ID.
2020-09-23 16:11:18 +01:00
Mathieu Velten
916bb9d0d1
Don't push if an user account has expired (#8353) 2020-09-23 16:06:28 +01:00
Andrew Morgan
4325be1a52 Fix missing null character check on guest_access room state
When updating room_stats_state, we try to check for null bytes slipping
in to the
content for state events. It turns out we had added guest_access as a
field to
room_stats_state without including it in the null byte check.

Lo and behold, a null byte in a m.room.guest_access event then breaks
room_stats_state
updates.

This PR adds the check for guest_access. A further PR will improve this
function so that this hopefully does not happen again in future.
2020-09-22 19:39:29 +01:00
Dirk Klimpel
8998217540
Fixed a bug with reactivating users with the admin API (#8362)
Fixes: #8359 

Trying to reactivate a user with the admin API (`PUT /_synapse/admin/v2/users/<user_name>`) causes an internal server error.

Seems to be a regression in #8033.
2020-09-22 18:19:01 +01:00
Dirk Klimpel
4da01f9c61
Admin API for reported events (#8217)
Add an admin API to read entries of table `event_reports`. API: `GET /_synapse/admin/v1/event_reports`
2020-09-22 18:15:04 +01:00
Patrick Cloke
00db7786de Synapse 1.20.0rc5 (2020-09-18)
==============================
 
 In addition to the below, Synapse 1.20.0rc5 also includes the bug fix that was included in 1.19.3.
 
 Features
 --------
 
 - Add flags to the `/versions` endpoint for whether new rooms default to using E2EE. ([\#8343](https://github.com/matrix-org/synapse/issues/8343))
 
 Bugfixes
 --------
 
 - Fix rate limiting of federation `/send` requests. ([\#8342](https://github.com/matrix-org/synapse/issues/8342))
 - Fix a longstanding bug where back pagination over federation could get stuck if it failed to handle a received event. ([\#8349](https://github.com/matrix-org/synapse/issues/8349))
 
 Internal Changes
 ----------------
 
 - Blacklist [MSC2753](https://github.com/matrix-org/matrix-doc/pull/2753) SyTests until it is implemented. ([\#8285](https://github.com/matrix-org/synapse/issues/8285))
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Merge tag 'v1.20.0rc5' into develop

Synapse 1.20.0rc5 (2020-09-18)
==============================

In addition to the below, Synapse 1.20.0rc5 also includes the bug fix that was included in 1.19.3.

Features
--------

- Add flags to the `/versions` endpoint for whether new rooms default to using E2EE. ([\#8343](https://github.com/matrix-org/synapse/issues/8343))

Bugfixes
--------

- Fix rate limiting of federation `/send` requests. ([\#8342](https://github.com/matrix-org/synapse/issues/8342))
- Fix a longstanding bug where back pagination over federation could get stuck if it failed to handle a received event. ([\#8349](https://github.com/matrix-org/synapse/issues/8349))

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

- Blacklist [MSC2753](https://github.com/matrix-org/matrix-doc/pull/2753) SyTests until it is implemented. ([\#8285](https://github.com/matrix-org/synapse/issues/8285))
2020-09-18 11:17:58 -04:00
reivilibre
36efbcaf51
Catch-up after Federation Outage (bonus): Catch-up on Synapse Startup (#8322)
Signed-off-by: Olivier Wilkinson (reivilibre) <olivier@librepush.net>
Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>

* Fix _set_destination_retry_timings

This came about because the code assumed that retry_interval
could not be NULL — which has been challenged by catch-up.
2020-09-18 14:59:13 +01:00
Patrick Cloke
8a4a4186de
Simplify super() calls to Python 3 syntax. (#8344)
This converts calls like super(Foo, self) -> super().

Generated with:

    sed -i "" -Ee 's/super\([^\(]+\)/super()/g' **/*.py
2020-09-18 09:56:44 -04:00
Erik Johnston
43f2b67e4d
Intelligently select extremities used in backfill. (#8349)
Instead of just using the most recent extremities let's pick the
ones that will give us results that the pagination request cares about,
i.e. pick extremities only if they have a smaller depth than the
pagination token.

This is useful when we fail to backfill an extremity, as we no longer
get stuck requesting that same extremity repeatedly.
2020-09-18 14:25:52 +01:00
Jonathan de Jong
837293c314
Remove obsolete __future__ imports (#8337) 2020-09-17 08:37:01 -04:00
Jonathan de Jong
a3f124b821
Switch metaclass initialization to python 3-compatible syntax (#8326) 2020-09-16 15:15:55 -04:00
reivilibre
576bc37d31
Catch-up after Federation Outage (split, 4): catch-up loop (#8272) 2020-09-15 09:07:19 +01:00
Patrick Cloke
aec294ee0d
Use slots in attrs classes where possible (#8296)
slots use less memory (and attribute access is faster) while slightly
limiting the flexibility of the class attributes. This focuses on objects
which are instantiated "often" and for short periods of time.
2020-09-14 12:50:06 -04:00
Tulir Asokan
b82d68c0bd
Add the topic and avatar to the room details admin API (#8305) 2020-09-14 10:07:04 -04:00
Erik Johnston
04cc249b43
Add experimental support for sharding event persister. Again. (#8294)
This is *not* ready for production yet. Caveats:

1. We should write some tests...
2. The stream token that we use for events can get stalled at the minimum position of all writers. This means that new events may not be processed and e.g. sent down sync streams if a writer isn't writing or is slow.
2020-09-14 10:16:41 +01:00
Erik Johnston
fe8ed1b46f
Make StreamToken.room_key be a RoomStreamToken instance. (#8281) 2020-09-11 12:22:55 +01:00
Richard van der Hoff
e44e9ee518 Merge branch 'release-v1.20.0' into develop 2020-09-10 10:15:02 +01:00
reivilibre
a5370072b5
Don't remember enabled of deleted push rules and properly return 404 for missing push rules in .../actions and .../enabled (#7796)
Signed-off-by: Olivier Wilkinson (reivilibre) <olivier@librepush.net>

Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>
2020-09-09 11:39:39 +01:00
DeepBlueV7.X
560f3b8609
Include method in thumbnail media name (#7124)
This fixes an issue where different methods (crop/scale) overwrite each other.

This first tries the new path. If that fails and we are looking for a
remote thumbnail, it tries the old path. If that still isn't found, it
continues as normal.

This should probably be removed in the future, after some of the newer
thumbnails were generated with the new path on most deployments. Then
the overhead should be minimal if the other thumbnails need to be
regenerated.

Signed-off-by: Nicolas Werner <nicolas.werner@hotmail.de>
2020-09-08 17:19:50 +01:00
Erik Johnston
63c0e9e195
Add types to StreamToken and RoomStreamToken (#8279)
The intention here is to change `StreamToken.room_key` to be a `RoomStreamToken` in a future PR, but that is a big enough change without this refactoring too.
2020-09-08 16:48:15 +01:00
Brendan Abolivier
d4daff9b59
Fix /notifications and pushers misbehaving because of unread counts (#8280) 2020-09-08 15:26:06 +01:00
Erik Johnston
deedb91732
Fix MultiWriterIdGenerator.current_position. (#8257)
It did not correctly handle IDs finishing being persisted out of
order, resulting in the `current_position` lagging until new IDs are
persisted.
2020-09-08 14:26:54 +01:00
Andrew Morgan
68cdb3708e
Rename 'populate_stats_process_rooms_2' background job back to 'populate_stats_process_rooms' again (#8243)
Fixes https://github.com/matrix-org/synapse/issues/8238

Alongside the delta file, some changes were also necessary to the codebase to remove references to the now defunct `populate_stats_process_rooms_2` background job. Thankfully the latter doesn't seem to have made it into any documentation yet :)
2020-09-08 11:05:59 +01:00
Richard van der Hoff
8d6f97f932 Merge remote-tracking branch 'origin/release-v1.20.0' into develop 2020-09-08 09:58:07 +01:00
Richard van der Hoff
ef2804d27c
Avoid table-scanning users at startup (#8271)
This takes about 10 seconds in the best case; often more.
2020-09-07 16:48:52 +01:00
Brendan Abolivier
a55e2707d7
Fix unread count failing on NULL values (#8270)
Fix unread counts making sync fail if the value of the `unread_count`
column in `event_push_summary` is `None`.
2020-09-07 15:15:06 +01:00
Richard van der Hoff
0dae7d80bf
Add more logging to debug slow startup (#8264)
I'm hoping this will provide some pointers for debugging
https://github.com/matrix-org/synapse/issues/7968.
2020-09-07 13:36:02 +01:00
Richard van der Hoff
96312536f2
Refuse to upgrade database on worker processes (#8266) 2020-09-07 13:04:10 +01:00
Richard van der Hoff
5b452df23b
Run database updates in a transaction (#8265)
Fixes: #6467
2020-09-07 11:41:50 +01:00
Richard van der Hoff
77b4711bc2 Merge branch 'release-v1.20.0' into develop 2020-09-06 23:32:28 +01:00
reivilibre
7513006b09
In light of #8255, use BIGINTs for destination_rooms (#8256) 2020-09-04 15:07:29 +01:00
reivilibre
17fa4c7ca7
Catch up after Federation Outage (split, 2): Track last successful stream ordering after transmission (#8247)
Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>
2020-09-04 15:06:51 +01:00
Richard van der Hoff
f25af1f9c7
Add cross-signing sigs to the keys object (#8234)
All the callers want this info in the same place, so let's reduce the
duplication by doing it here.
2020-09-04 15:06:05 +01:00
Brendan Abolivier
041ee971c9
Unread counts fixes (#8254)
* Fixup `ALTER TABLE` database queries

Make the new columns nullable, because doing otherwise can wedge a
server with a big database, as setting a default value rewrites the
table.

* Switch back to using the notifications count in the push badge

Clients are likely to be confused if we send a push but the badge count
is the unread messages one, and not the notifications one.

* Changelog
2020-09-04 14:14:22 +01:00