Commit Graph

188 Commits

Author SHA1 Message Date
Erik Johnston
35f3c366ef
Merge pull request #6505 from matrix-org/erikj/make_deferred_yiedable
Fix `make_deferred_yieldable` to work with coroutines
2019-12-10 14:20:26 +00:00
Erik Johnston
9a2223d4c8 Fix make_deferred_yieldable to work with coroutines 2019-12-10 11:22:12 +00:00
Erik Johnston
f166a8d1f5 Remove SnapshotCache in favour of ResponseCache 2019-12-09 13:42:49 +00:00
Erik Johnston
326b3dace7 Make ObservableDeferred.observe() always return deferred.
This makes it easier to use in an async/await world.

Also fixes a bug where cache descriptors would occaisonally return a raw
value rather than a deferred.
2019-10-30 11:35:46 +00:00
Erik Johnston
d0d8a22c13 Quick fix to ensure cache descriptors always return deferreds 2019-10-28 13:33:04 +00:00
Richard van der Hoff
1e19ce00bf
Add 'failure_ts' column to 'destinations' table (#6016)
Track the time that a server started failing at, for general analysis purposes.
2019-09-17 11:41:54 +01:00
Erik Johnston
17e1e80726 Retry well-known lookup before expiry.
This gives a bit of a grace period where we can attempt to refetch a
remote `well-known`, while still using the cached result if that fails.

Hopefully this will make the well-known resolution a bit more torelant
of failures, rather than it immediately treating failures as "no result"
and caching that for an hour.
2019-08-13 16:20:38 +01:00
Richard van der Hoff
618bd1ee76
Fix some error cases in the caching layer. (#5749)
There was some inconsistent behaviour in the caching layer around how
exceptions were handled - particularly synchronously-thrown ones.

This seems to be most easily handled by pushing the creation of
ObservableDeferreds down from CacheDescriptor to the Cache.
2019-07-25 15:59:45 +01:00
Amber Brown
4806651744
Replace returnValue with return (#5736) 2019-07-23 23:00:55 +10:00
Richard van der Hoff
9481707a52
Fixes to the federation rate limiter (#5621)
- Put the default window_size back to 1000ms (broken by #5181)
- Make the `rc_federation` config actually do something
- fix an off-by-one error in the 'concurrent' limit
- Avoid creating an unused `_PerHostRatelimiter` object for every single
  incoming request
2019-07-05 11:10:19 +01:00
Amber Brown
463b072b12
Move logging utilities out of the side drawer of util/ and into logging/ (#5606) 2019-07-04 00:07:04 +10:00
Amber Brown
0ee9076ffe Fix media repo breaking (#5593) 2019-07-02 19:01:28 +01:00
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
Andrew Morgan
caa76e6021
Remove periods from copyright headers (#5046) 2019-04-11 17:08:13 +01:00
Richard van der Hoff
bc5f6e1797
Add a caching layer to .well-known responses (#4516) 2019-01-30 10:55:25 +00:00
Richard van der Hoff
676cf2ee26
Fix incorrect logcontexts after a Deferred was cancelled (#4407) 2019-01-17 14:00:23 +00:00
Richard van der Hoff
4a15a3e4d5
Include eventid in log lines when processing incoming federation transactions (#3959)
when processing incoming transactions, it can be hard to see what's going on,
because we process a bunch of stuff in parallel, and because we may end up
recursively working our way through a chain of three or four events.

This commit creates a way to use logcontexts to add the relevant event ids to
the log lines.
2018-09-27 11:25:34 +01:00
Erik Johnston
8601c24287 Fix some instances of ExpiringCache not expiring cache items
ExpiringCache required that `start()` be called before it would actually
start expiring entries. A number of places didn't do that.

This PR removes `start` from ExpiringCache, and automatically starts
backround reaping process on creation instead.
2018-09-21 14:19:46 +01:00
black
8b3d9b6b19 Run black. 2018-08-10 23:54:09 +10:00
Amber Brown
b37c472419
Rename async to async_helpers because async is a keyword on Python 3.7 (#3678) 2018-08-10 23:50:21 +10:00
Richard van der Hoff
a8cbce0ced fix invalidation 2018-07-27 16:17:17 +01:00
Richard van der Hoff
f102c05856 Rewrite cache list decorator
Because it was complicated and annoyed me. I suspect this will be more
efficient too.
2018-07-27 13:47:04 +01:00
Richard van der Hoff
3d6df84658 Test and fix support for cancellation in Linearizer 2018-07-20 13:59:55 +01:00
Richard van der Hoff
7c712f95bb Combine Limiter and Linearizer
Linearizer was effectively a Limiter with max_count=1, so rather than
maintaining two sets of code, let's combine them.
2018-07-20 13:11:43 +01:00
Richard van der Hoff
d7275eecf3 Add a sleep to the Limiter to fix stack overflows.
Fixes #3570
2018-07-20 12:37:12 +01:00
Erik Johnston
850238b4ef Add unit test 2018-07-17 10:59:02 +01:00
Erik Johnston
bc832f822f Fixup unit test 2018-07-13 17:03:04 +01:00
Amber Brown
49af402019 run isort 2018-07-09 16:09:20 +10:00
Richard van der Hoff
ea555d5633 Reinstate lost run_on_reactor in unit test
a61738b removed a call to run_on_reactor from a unit test, but that call was
doing something useful, in making the function in question asynchronous.

Reinstate the call and add a check that we are testing what we wanted to be
testing.
2018-07-04 09:40:01 +01:00
Richard van der Hoff
43e02c409d Disable partial state group caching for wildcard lookups
When _get_state_for_groups is given a wildcard filter, just do a complete
lookup. Hopefully this will give us the best of both worlds by not filling up
the ram if we only need one or two keys, but also making the cache still work
for the federation reader usecase.
2018-06-22 11:52:07 +01:00
Amber Brown
77ac14b960
Pass around the reactor explicitly (#3385) 2018-06-22 09:37:10 +01:00
Amber Brown
a61738b316
Remove run_on_reactor (#3395) 2018-06-14 18:27:37 +10:00
Amber Brown
f7869f8f8b
Port to sortedcontainers (with tests!) (#3332) 2018-06-06 00:13:57 +10:00
Matthew Hodgson
adb6bac4d5 fix another dumb typo 2018-05-29 02:29:22 +01:00
Richard van der Hoff
415c6b672e Merge branch 'develop' into rav/more_logcontext_leaks 2018-05-02 16:16:01 +01:00
Richard van der Hoff
11607006d9 Remove spurious unittest.DEBUG 2018-05-02 15:48:47 +01:00
Richard van der Hoff
f22e7cda2c Fix a class of logcontext leaks
So, it turns out that if you have a first `Deferred` `D1`, you can add a
callback which returns another `Deferred` `D2`, and `D2` must then complete
before any further callbacks on `D1` will execute (and later callbacks on `D1`
get the *result* of `D2` rather than `D2` itself).

So, `D1` might have `called=True` (as in, it has started running its
callbacks), but any new callbacks added to `D1` won't get run until `D2`
completes - so if you `yield D1` in an `inlineCallbacks` function, your `yield`
will 'block'.

In conclusion: some of our assumptions in `logcontext` were invalid. We need to
make sure that we don't optimise out the logcontext juggling when this
situation happens. Fortunately, it is easy to detect by checking `D1.paused`.
2018-05-02 11:58:00 +01:00
Richard van der Hoff
e482f8cd85 Fix incorrect reference to StringIO
This was introduced in 4f2f5171
2018-05-02 09:12:26 +01:00
Richard van der Hoff
3d1ae61399 Merge branch 'develop' into rav/deferred_timeout 2018-04-27 12:54:43 +01:00
Richard van der Hoff
1ea904b9f0 Use deferred.addTimeout instead of time_bound_deferred
This doesn't feel like a wheel we need to reinvent.
2018-04-23 00:53:18 +01:00
Adrian Tschira
a1a3c9660f Make tests py3 compatible
This is a mixed commit that fixes various small issues

 * print parentheses
 * 01 is invalid syntax (it was octal in py2)
 * [x for i in 1, 2] is invalid syntax
 * six moves

Signed-off-by: Adrian Tschira <nota@notafile.com>
2018-04-16 00:39:32 +02:00
Richard van der Hoff
01afc563c3 Fix overzealous cache invalidation
Fixes an issue where a cache invalidation would invalidate *all* pending
entries, rather than just the entry that we intended to invalidate.
2018-04-05 16:24:04 +01:00
Erik Johnston
b6dc7044a9
Merge pull request #2804 from matrix-org/erikj/file_consumer
Add decent impl of a FileConsumer
2018-01-18 16:31:33 +00:00
Erik Johnston
1432f7ccd5 Move test stuff to tests 2018-01-18 11:57:57 +00:00
Erik Johnston
bc67e7d260 Add decent impl of a FileConsumer
Twisted core doesn't have a general purpose one, so we need to write one
ourselves.

Features:
- All writing happens in background thread
- Supports both push and pull producers
- Push producers get paused if the consumer falls behind
2018-01-17 16:43:03 +00:00
Richard van der Hoff
44a498418c Optimise LoggingContext creation and copying
It turns out that the only thing we use the __dict__ of LoggingContext for is
`request`, and given we create lots of LoggingContexts and then copy them every
time we do a db transaction or log line, using the __dict__ seems a bit
redundant. Let's try to optimise things by making the request attribute
explicit.
2018-01-16 15:49:42 +00:00
Richard van der Hoff
a6ad8148b9 Fix name of test_logcontext
The file under test is logcontext.py, not log_context.py
2017-10-17 10:53:34 +01:00
Richard van der Hoff
5b5f35ccc0 Add some tests for make_deferred_yieldable 2017-10-17 10:52:31 +01:00
Richard van der Hoff
4fad8efbfb Fix stackoverflow and logcontexts from linearizer
1. make it not blow out the stack when there are more than 50 things waiting
   for a lock. Fixes https://github.com/matrix-org/synapse/issues/2505.

2. Make it not mess up the log contexts.
2017-10-11 15:05:05 +01:00
Erik Johnston
bbfe4e996c Make get_state_groups_from_groups faster.
Most of the time was spent copying a dict to filter out sentinel values
that indicated that keys did not exist in the dict. The sentinel values
were added to ensure that we cached the non-existence of keys.

By updating DictionaryCache to keep track of which keys were known to
not exist itself we can remove a dictionary copy.
2017-05-17 15:12:15 +01:00
Erik Johnston
eefd9fee81 Fix up tests 2017-03-30 14:14:46 +01:00
Richard van der Hoff
f9b4bb05e0 Fix the logcontext handling in the cache wrappers (#2077)
The cache wrappers had a habit of leaking the logcontext into the reactor while
the lookup function was running, and then not restoring it correctly when the
lookup function had completed. It's all the fault of
`preserve_context_over_{fn,deferred}` which are basically a bit broken.
2017-03-30 13:22:24 +01:00
Richard van der Hoff
06ce7335e9 Merge pull request #2052 from matrix-org/rav/time_bound_deferred
Fix time_bound_deferred to throw the right exception
2017-03-23 22:22:54 +00:00
Richard van der Hoff
b88a323ffb Fix time_bound_deferred to throw the right exception
Due to a failure to instantiate DeferredTimedOutError, time_bound_deferred
would throw a CancelledError when the deferred timed out, which was rather
confusing.
2017-03-23 12:07:11 +00:00
Richard van der Hoff
95f21c7a66 Fix caching of remote servers' signature keys
The `@cached` decorator on `KeyStore._get_server_verify_key` was missing
its `num_args` parameter, which meant that it was returning the wrong key for
any server which had more than one recorded key.

By way of a fix, change the default for `num_args` to be *all* arguments. To
implement that, factor out a common base class for `CacheDescriptor` and `CacheListDescriptor`.
2017-03-22 15:11:30 +00:00
Richard van der Hoff
f40c2db05a Stop preserve_fn leaking context into the reactor
Fix a bug in ``logcontext.preserve_fn`` which made it leak context into the
reactor, and add a test for it.

Also, get rid of ``logcontext.reset_context_after_deferred``, which tried to do
the same thing but had its own, different, set of bugs.
2017-03-18 00:07:43 +00:00
Erik Johnston
9e8e236d98 Tidy up test 2017-01-17 11:50:18 +00:00
Erik Johnston
f85b6ca494 Speed up cache size calculation
Instead of calculating the size of the cache repeatedly, which can take
a long time now that it can use a callback, instead cache the size and
update that on insertion and deletion.

This requires changing the cache descriptors to have two caches, one for
pending deferreds and the other for the actual values. There's no reason
to evict from the pending deferreds as they won't take up any more
memory.
2017-01-17 11:18:13 +00:00
Erik Johnston
f2f179dce2 Add ExpiringCache tests 2017-01-16 15:33:34 +00:00
Erik Johnston
2fae34bd2c Optionally measure size of cache by sum of length of values 2017-01-13 17:46:17 +00:00
Erik Johnston
d073cb7ead Add Limiter: limit concurrent access to resource 2016-11-10 16:29:51 +00:00
Erik Johnston
45fd2c8942 Ensure invalidation list does not grow unboundedly 2016-08-19 16:09:16 +01:00
Erik Johnston
4161ff2fc4 Add concept of cache contexts 2016-08-19 14:17:07 +01:00
Erik Johnston
7335f0adda Add ReadWriteLock 2016-07-05 15:23:17 +01:00
Erik Johnston
af03ecf352 Deduplicate joins 2016-04-07 14:19:02 +01:00
Mark Haines
7641a90c34 Add a test for TreeCache.__contains__ 2016-02-22 15:22:38 +00:00
Mark Haines
700487a7c7 Fix flake8 warnings for tests 2016-02-19 15:34:38 +00:00
Erik Johnston
9e7900da1e Add wheeltimer impl 2016-02-17 14:29:28 +00:00
Erik Johnston
e664e9737c Fix test 2016-02-09 14:57:43 +00:00
Erik Johnston
4fce59f274 Add tests 2016-01-29 11:33:11 +00:00
David Baker
d552861346 Revert all the bits changing keys of eeverything that used LRUCaches to tuples 2016-01-22 12:18:14 +00:00
David Baker
10f76dc5da Make LRU cache not default to treecache & add options to use it 2016-01-22 12:10:33 +00:00
David Baker
31a051b677 Test treecache directly 2016-01-22 11:22:00 +00:00
David Baker
4efcaa43c8 Add tests for treecache directly and test del_multi at the LruCache level too. 2016-01-22 10:37:37 +00:00
David Baker
f1f8122120 Change LRUCache to be tree-based so we can delete subtrees. 2016-01-21 19:16:25 +00:00
Matthew Hodgson
6c28ac260c copyrights 2016-01-07 04:26:29 +00:00
Mark Haines
7fa71e3267 Add a unit test for the snapshot cache 2015-12-23 11:48:03 +00:00
Mark Haines
c452dabc3d Remove the LockManager class because it wasn't being used 2015-11-04 14:08:15 +00:00
Erik Johnston
2df8dd9b37 Move all the caches into their own package, synapse.util.caches 2015-08-11 18:00:59 +01:00
Erik Johnston
c67ba143fa Move DictionaryCache 2015-08-04 15:58:28 +01:00
Erik Johnston
e7768e77f5 Add basic dictionary cache 2015-08-04 15:56:56 +01:00
Mark Haines
d8324d5a2b Add a lru cache class 2015-02-11 14:52:23 +00:00
Mark Haines
b29517bd01 Add a request-id to each log line 2014-10-30 01:21:33 +00:00
Paul "LeoNerd" Evans
cd62ee3f29 Have all unit tests import from our own subclass of trial's unittest TestCase; set up logging in ONE PLACE ONLY 2014-09-12 18:46:13 +01:00
Matthew Hodgson
8a7c1d6a00 fix the copyright holder from matrix.org to OpenMarket Ltd, as matrix.org hasn't been incorporated in time for launch. 2014-09-03 17:31:57 +01:00
Matthew Hodgson
3e35a9f96e add in copyrights to everything, not just the synapse subdir, and add a copyrighter.pl whilst we're at it 2014-08-13 03:32:18 +01:00
matrix.org
4f475c7697 Reference Matrix Home Server 2014-08-12 15:10:52 +01:00