Commit Graph

145 Commits

Author SHA1 Message Date
Erik Johnston
f053a1409e Make state caches cache in ascii 2017-04-25 17:22:55 +01:00
Erik Johnston
22f3d3ae76 Reduce _get_state_group_for_event cache size 2017-04-25 11:43:03 +01:00
Erik Johnston
e4f3431116 Remove unused cache 2017-04-24 13:27:38 +01:00
Erik Johnston
2a3e822f44 Comment 2017-04-07 13:47:04 +01:00
Erik Johnston
d72667fcce Speed up get_current_state_ids
Using _simple_select_list is fairly expensive for functions that return
a lot of rows and/or get called a lot. (This is because it carefully
constructs a list of dicts).

get_current_state_ids gets called a lot on startup and e.g. when the IRC
bridge decided to send tonnes of joins/leaves (as it invalidates the
cache). We therefore replace it with a custon txn function that builds
up the final result dict without building up and intermediate
representation.
2017-04-07 10:10:49 +01:00
Erik Johnston
3ce8d59176 Increase cache size for _get_state_group_for_event 2017-03-29 14:31:46 +01:00
Erik Johnston
d58b1ffe94 Replace some calls to cursor_to_dict
cursor_to_dict can be surprisinglh expensive for large result sets, so lets
only call it when we need to.
2017-03-24 11:07:02 +00:00
Erik Johnston
e71940aa64 Use iter(items|values) 2017-03-24 10:57:02 +00:00
Erik Johnston
00957d1aa4 User Cursor.__iter__ instead of fetchall
This prevents unnecessary construction of lists
2017-03-23 17:53:49 +00:00
Richard van der Hoff
0c01f829ae Avoid resetting state on rejected events
When we get a rejected event, give it the same state_group as its prev_event,
rather than no state_group at all.

This should fix https://github.com/matrix-org/synapse/issues/1935.
2017-03-17 15:06:08 +00:00
Erik Johnston
8ffbe43ba1 Get current state by using current_state_events table 2017-03-10 17:39:35 +00:00
Richard van der Hoff
fc2f29c1d0 Fix bugs in the /keys/changes api
* `get_forward_extremeties_for_room` takes a numeric `stream_ordering`. We were
  passing a `RoomStreamToken`, which meant that it returned the *current*
  extremities, rather than those corresponding to the `from_token`. However:
* `get_state_ids_for_events` required a second ('types') parameter; this meant
  that a `TypeError` was thrown and we ended up acting as though there was *no*
  prev state.
* `get_state_ids_for_events` actually returns a map from event_id to state
  dictionary - just looking up the state keys in it again meant that we acted
  as though there was no prev state. We now check if each member's state has
  changed since *any* of the extremities.

Also add/fix some comments.
2017-02-14 13:59:50 +00:00
Erik Johnston
21b7375778 Add an index to make membership queries faster 2017-01-31 15:15:57 +00:00
Erik Johnston
a55fa2047f Insert delta of current_state_events to be more efficient 2017-01-20 17:10:18 +00:00
Erik Johnston
897f8752da Up cache max entries for state 2017-01-16 15:08:17 +00:00
Erik Johnston
01521299c7 Increase cache size limit 2017-01-16 11:56:51 +00:00
Erik Johnston
2fae34bd2c Optionally measure size of cache by sum of length of values 2017-01-13 17:46:17 +00:00
Matthew Hodgson
8cfc0165e9 fix annoying typos 2017-01-05 13:39:43 +00:00
Erik Johnston
587d8ac60f Correctly intern keys in state cache 2016-11-08 11:53:25 +00:00
Erik Johnston
4974147aa3 Remove duplication 2016-09-27 09:27:54 +01:00
Erik Johnston
13122e5e24 Remove unused variable 2016-09-27 09:21:51 +01:00
Erik Johnston
cf3e1cc200 Fix perf of fetching state in SQLite 2016-09-26 17:16:24 +01:00
Erik Johnston
00f51493f5 Fix reindex 2016-09-14 10:18:30 +01:00
Erik Johnston
d5ae1f1291 Ensure we don't mutate state cache entries 2016-09-14 10:03:48 +01:00
Erik Johnston
03a98aff3c Create new index concurrently 2016-09-12 14:27:01 +01:00
Erik Johnston
897d57bc58 Change state fetch query for postgres to be faster
It turns out that postgres doesn't like doing a list of OR's and is
about 1000x slower, so we just issue a query for each specific type
seperately.
2016-09-12 10:05:07 +01:00
Erik Johnston
5beda10bbd Reindex state_groups_state after pruning 2016-09-08 16:18:01 +01:00
Erik Johnston
b568ca309c Temporarily disable sequential scans for state fetching 2016-09-08 09:38:54 +01:00
Erik Johnston
513188aa56 Comment 2016-09-07 14:53:23 +01:00
Erik Johnston
fadb01551a Add appopriate framing clause 2016-09-07 14:39:01 +01:00
Erik Johnston
d25c20ccbe Use windowing function to make use of index 2016-09-07 14:22:22 +01:00
Erik Johnston
0595413c0f Scale the batch size so that we're not bitten by the minimum 2016-09-05 15:49:57 +01:00
Erik Johnston
a7032abb2e Correctly handle reindexing state groups that already have an edge 2016-09-05 15:07:23 +01:00
Erik Johnston
70332a12dd Take value in a better way 2016-09-05 14:57:14 +01:00
Erik Johnston
373654c635 Comment about sqlite and WITH RECURSIVE 2016-09-05 14:50:36 +01:00
Erik Johnston
628e65721b Add comments 2016-09-05 10:41:27 +01:00
Erik Johnston
a99e933550 Add upgrade script that will slowly prune state_groups_state entries 2016-09-05 10:05:36 +01:00
Erik Johnston
598317927c Limit the length of state chains 2016-09-02 10:41:38 +01:00
Erik Johnston
9e25443db8 Move to storing state_groups_state as deltas 2016-09-01 14:31:26 +01:00
Erik Johnston
0cfd6c3161 Use state_groups table to test existence 2016-08-31 16:25:57 +01:00
Erik Johnston
c10cb581c6 Correctly handle the difference between prev and current state 2016-08-31 14:26:22 +01:00
Erik Johnston
1bb8ec296d Generate state group ids in state layer 2016-08-31 10:09:46 +01:00
Erik Johnston
5dc2a702cf Make _state_groups_id_gen a normal IdGenerator 2016-08-30 16:55:11 +01:00
Erik Johnston
778fa85f47 Make sync not pull out full state 2016-08-25 18:59:44 +01:00
Erik Johnston
a3dc1e9cbe Replace context.current_state with context.current_state_ids 2016-08-25 17:32:22 +01:00
Erik Johnston
17f4f14df7 Pull out event ids rather than full events for state 2016-08-25 13:42:44 +01:00
Erik Johnston
ba214a5e32 Remove lru option 2016-08-19 14:17:11 +01:00
Erik Johnston
61c7edfd34 Add cache to _get_state_groups_from_groups 2016-04-19 17:22:03 +01:00
Mark Haines
87f2dec8d4 Make the cache objects be per instance rather than being global 2016-04-06 13:08:05 +01:00
Mark Haines
89e6839a48 Merge pull request #686 from matrix-org/markjh/doc_strings
Use google style doc strings.
2016-04-01 16:20:09 +01:00