Commit Graph

18 Commits

Author SHA1 Message Date
Erik Johnston
c5b6abd53d
Correctly handle unpersisted events when calculating auth chain difference. (#8827)
We do state res with unpersisted events when calculating the new current state of the room, so that should be the only thing impacted. I don't think this is tooooo big of a deal as:

1. the next time a state event happens in the room the current state should correct itself;
2. in the common case all the unpersisted events' auth events will be pulled in by other state, so will still return the correct result (or one which is sufficiently close to not affect the result); and
3. we mostly use the state at an event to do important operations, which isn't affected by this.
2020-12-02 15:22:37 +00:00
Patrick Cloke
c619253db8
Stop sub-classing object (#8249) 2020-09-04 06:54:56 -04:00
Patrick Cloke
b975fa2e99
Convert state resolution to async/await (#7942) 2020-07-24 10:59:51 -04:00
Erik Johnston
0e0a2817a2
Yield during large v2 state res. (#7735)
State res v2 across large data sets can be very CPU intensive, and if
all the relevant events are in the cache the algorithm will run from
start to finish within a single reactor tick. This can result in
blocking the reactor tick for several seconds, which can have major
repercussions on other requests.

To fix this we simply add the occaisonal `sleep(0)` during iterations to
yield execution until the next reactor tick. The aim is to only do this
for large data sets so that we don't impact otherwise quick resolutions.=
2020-06-24 18:48:18 +01:00
Dagfinn Ilmari Mannsåker
a3f11567d9
Replace all remaining six usage with native Python 3 equivalents (#7704) 2020-06-16 08:51:47 -04:00
Erik Johnston
4a17a647a9
Improve get auth chain difference algorithm. (#7095)
It was originally implemented by pulling the full auth chain of all
state sets out of the database and doing set comparison. However, that
can take a lot work if the state and auth chains are large.

Instead, lets try and fetch the auth chains at the same time and
calculate the difference on the fly, allowing us to bail early if all
the auth chains converge. Assuming that the auth chains do converge more
often than not, this should improve performance. Hopefully.
2020-03-18 16:46:41 +00:00
Erik Johnston
2b37eabca1
Reduce auth chains fetched during v2 state res. (#6952)
The state res v2 algorithm only cares about the difference between auth
chains, so we can pass in the known common state to the `get_auth_chain`
storage function so that it can ignore those events.
2020-02-19 15:04:47 +00:00
Richard van der Hoff
799001f2c0
Add a make_event_from_dict method (#6858)
... and use it in places where it's trivial to do so.

This will make it easier to pass room versions into the FrozenEvent
constructors.
2020-02-07 15:30:04 +00:00
Richard van der Hoff
1da15f05f5
sanity-checking for events used in state res (#6531)
When we perform state resolution, check that all of the events involved are in
the right room.
2019-12-13 12:55:32 +00:00
Amber Brown
32e7c9e7f2
Run Black. (#5482) 2019-06-20 19:32:02 +10:00
Amber Brown
b36c82576e
Run Black on the tests again (#5170) 2019-05-10 00:12:11 -05:00
Richard van der Hoff
54a87a7b08
Collect room-version variations into one place (#4969)
Collect all the things that make room-versions different to one another into
one place, so that it's easier to define new room versions.
2019-04-01 10:24:38 +01:00
Erik Johnston
ae2a957dba Pass through room version to event auth 2019-01-25 18:31:41 +00:00
Erik Johnston
bc80b3f454 Add helpers for getting prev and auth events (#4139)
* Add helpers for getting prev and auth events

This is in preparation for allowing the event format to change between
room versions.
2018-11-06 00:35:15 +11:00
Erik Johnston
54aec35867 Fix None exception in state res v2 2018-11-02 10:29:19 +00:00
Erik Johnston
b313b9b009 isort 2018-10-24 10:02:41 +01:00
Erik Johnston
810715f79a Rename resolve_events_with_factory 2018-10-24 09:44:22 +01:00
Erik Johnston
947c7443eb Add some state res v2 tests 2018-10-16 16:28:39 +01:00