Commit Graph

15 Commits

Author SHA1 Message Date
Erik Johnston
0e719f2398
Thread through instance name to replication client. (#7369)
For in memory streams when fetching updates on workers we need to query the source of the stream, which currently is hard coded to be master. This PR threads through the source instance we received via `POSITION` through to the update function in each stream, which can then be passed to the replication client for in memory streams.
2020-05-01 17:19:56 +01:00
Erik Johnston
3085cde577
Use stream.current_token() and remove stream_positions() (#7172)
We move the processing of typing and federation replication traffic into their handlers so that `Stream.current_token()` points to a valid token. This allows us to remove `get_streams_to_replicate()` and `stream_positions()`.
2020-05-01 15:21:35 +01:00
Erik Johnston
37f6823f5b
Add instance name to RDATA/POSITION commands (#7364)
This is primarily for allowing us to send those commands from workers, but for now simply allows us to ignore echoed RDATA/POSITION commands that we sent (we get echoes of sent commands when using redis). Currently we log a WARNING on the master process every time we receive an echoed RDATA.
2020-04-29 16:23:08 +01:00
Erik Johnston
3eab76ad43
Don't relay REMOTE_SERVER_UP cmds to same conn. (#7352)
For direct TCP connections we need the master to relay REMOTE_SERVER_UP
commands to the other connections so that all instances get notified
about it. The old implementation just relayed to all connections,
assuming that sending back to the original sender of the command was
safe. This is not true for redis, where commands sent get echoed back to
the sender, which was causing master to effectively infinite loop
sending and then re-receiving REMOTE_SERVER_UP commands that it sent.

The fix is to ensure that we only relay to *other* connections and not
to the connection we received the notification from.

Fixes #7334.
2020-04-29 14:10:59 +01:00
Richard van der Hoff
c2e1a2110f
Fix limit logic for EventsStream (#7358)
* Factor out functions for injecting events into database

I want to add some more flexibility to the tools for injecting events into the
database, and I don't want to clutter up HomeserverTestCase with them, so let's
factor them out to a new file.

* Rework TestReplicationDataHandler

This wasn't very easy to work with: the mock wrapping was largely superfluous,
and it's useful to be able to inspect the received rows, and clear out the
received list.

* Fix AssertionErrors being thrown by EventsStream

Part of the problem was that there was an off-by-one error in the assertion,
but also the limit logic was too simple. Fix it all up and add some tests.
2020-04-29 12:30:36 +01:00
Erik Johnston
fce663889b
Add some replication tests (#7278)
Specifically some tests for the typing stream, which means we test streams that fetch missing updates via HTTP (rather than via the DB).

We also shuffle things around a bit so that we create two separate `HomeServer` objects, rather than trying to insert a slaved store into places.

Note: `test_typing.py` is heavily inspired by `test_receipts.py`
2020-04-28 17:42:03 +01:00
Richard van der Hoff
82d8b1dd1f
Another go at fixing one-word commands (#7326)
I messed this up last time I tried (#7239 / e13c6c7).
2020-04-22 14:34:31 +01:00
Erik Johnston
5016b162fc
Move client command handling out of TCP protocol (#7185)
The aim here is to move the command handling out of the TCP protocol classes and to also merge the client and server command handling (so that we can reuse them for redis protocol). This PR simply moves the client paths to the new `ReplicationCommandHandler`, a future PR will move the server paths too.
2020-04-06 09:58:42 +01:00
Erik Johnston
4cff617df1
Move catchup of replication streams to worker. (#7024)
This changes the replication protocol so that the server does not send down `RDATA` for rows that happened before the client connected. Instead, the server will send a `POSITION` and clients then query the database (or master out of band) to get up to date.
2020-03-25 14:54:01 +00:00
Richard van der Hoff
a564b92d37
Convert *StreamRow classes to inner classes (#7116)
This just helps keep the rows closer to their streams, so that it's easier to
see what the format of each stream is.
2020-03-23 13:59:11 +00:00
Erik Johnston
48c3a96886
Port synapse.replication.tcp to async/await (#6666)
* Port synapse.replication.tcp to async/await

* Newsfile

* Correctly document type of on_<FOO> functions as async

* Don't be overenthusiastic with the asyncing....
2020-01-16 09:16:12 +00:00
Amber Brown
0f87b912ab
Implementation of MSC2314 (#6176) 2019-11-28 08:54:07 +11:00
Amber Brown
b36c82576e
Run Black on the tests again (#5170) 2019-05-10 00:12:11 -05:00
Richard van der Hoff
a5798de067 Move replication.tcp.streams into a package 2019-03-27 21:13:14 +00:00
Richard van der Hoff
9bde730ef8
Fix bug where read-receipts lost their timestamps (#4927)
Make sure that they are sent correctly over the replication stream.

Fixes: #4898
2019-03-25 16:38:05 +00:00