Annoyingly, `current_state_events` table can include rejected events,
in which case the membership column will be null. To work around this
lets just always filter out null membership for now.
This will allow us to efficiently filter out rooms that have been
forgotten in other queries without having to join against the
`room_memberships` table.
Currently they're stored as non-outliers even though the server isn't in
the room, which can be problematic in places where the code assumes it
has the state for all non outlier events.
In particular, there is an edge case where persisting the leave event
triggers a state resolution, which requires looking up the room version
from state. Since the server doesn't have the state, this causes an
exception to be thrown.
* speed up room summaries by pulling their data from room_memberships rather than room state
* disable LL for incr syncs, and log incr sync stats (#3840)
(since it uses methods therein)
Turns out that we had a bunch of things which were incorrectly importing
EventWorkerStore from events.py rather than events_worker.py, which broke once
I removed the import into events.py.
This is unused. IT MUST DIE!!!1
̧̪͈̱̹̳͖͙H̵̰̤̰͕̖e̛ ͚͉̗̼̞w̶̩̥͉̮h̩̺̪̩͘ͅọ͎͉̟ ̜̩͔̦̘ͅW̪̫̩̣̲͔̳a͏͔̳͖i͖͜t͓̤̠͓͙s̘̰̩̥̙̝ͅ ̲̠̬̥Be̡̙̫̦h̰̩i̛̫͙͔̭̤̗̲n̳͞d̸ ͎̻͘T̛͇̝̲̹̠̗ͅh̫̦̝ͅe̩̫͟ ͓͖̼W͕̳͎͚̙̥ą̙l̘͚̺͔͞ͅl̳͍̙̤̤̮̳.̢
̟̺̜̙͉Z̤̲̙̙͎̥̝A͎̣͔̙͘L̥̻̗̳̻̳̳͢G͉̖̯͓̞̩̦O̹̹̺!̙͈͎̞̬ *
The race happens when the user joins a room at the same time as doing a
sync. We fetch the current token and then get the rooms the user is in.
If the join happens after the current token, but before we get the rooms
we end up sending down a partial room entry in the sync.
This is fixed by looking at the stream ordering of the membership
returned by get_rooms_for_user, and handling the case when that stream
ordering is after the current token.
Add db_conn parameters to the `__init__` methods of the *Store classes, so that
they are all consistent, which makes the multiple inheritance work correctly
(and so that we can later extract mixins which can be used in the slavedstores)
