Commit Graph

167 Commits

Author SHA1 Message Date
Erik Johnston 8771b1337d
Export jemalloc stats to prometheus when used (#9882) 2021-05-06 15:54:07 +01:00
Erik Johnston 1fb9a2d0bf
Limit how often GC happens by time. (#9902)
Synapse can be quite memory intensive, and unless care is taken to tune
the GC thresholds it can end up thrashing, causing noticable performance
problems for large servers. We fix this by limiting how often we GC a
given generation, regardless of current counts/thresholds.

This does not help with the reverse problem where the thresholds are set
too high, but that should only happen in situations where they've been
manually configured.

Adds a `gc_min_seconds_between` config option to override the defaults.

Fixes #9890.
2021-05-05 16:53:45 +01:00
Andrew Morgan 4b2217ace2 Merge branch 'master' into develop 2021-04-21 14:55:06 +01:00
Richard van der Hoff 5d281c10dd
Stop BackgroundProcessLoggingContext making new prometheus timeseries (#9854)
This undoes part of b076bc276e.
2021-04-21 10:03:31 +01:00
Andrew Morgan 6982db9651 Merge branch 'master' into develop 2021-04-20 14:55:16 +01:00
Patrick Cloke b076bc276e
Always use the name as the log ID. (#9829)
As far as I can tell our logging contexts are meant to log the request ID, or sometimes the request ID followed by a suffix (this is generally stored in the name field of LoggingContext). There's also code to log the name@memory location, but I'm not sure this is ever used.

This simplifies the code paths to require every logging context to have a name and use that in logging. For sub-contexts (created via nested_logging_contexts, defer_to_threadpool, Measure) we use the current context's str (which becomes their name or the string "sentinel") and then potentially modify that (e.g. add a suffix).
2021-04-20 14:19:00 +01:00
Jonathan de Jong 4b965c862d
Remove redundant "coding: utf-8" lines (#9786)
Part of #9744

Removes all redundant `# -*- coding: utf-8 -*-` lines from files, as python 3 automatically reads source code as utf-8 now.

`Signed-off-by: Jonathan de Jong <jonathan@automatia.nl>`
2021-04-14 15:34:27 +01:00
Patrick Cloke 48d44ab142
Record more information into structured logs. (#9654)
Records additional request information into the structured logs,
e.g. the requester, IP address, etc.
2021-04-08 08:01:14 -04:00
Andrew Morgan 0d87c6bd12
Don't report anything from GaugeBucketCollector metrics until data is present (#8926)
This PR modifies `GaugeBucketCollector` to only report data once it has been updated, rather than initially reporting a value of 0. Fixes zero values being reported for some metrics on startup until a background job to update the metric's value runs later.
2021-04-06 16:32:04 +01:00
Patrick Cloke 33a02f0f52
Fix additional type hints from Twisted upgrade. (#9518) 2021-03-03 15:47:38 -05:00
Eric Eastwood 0a00b7ff14
Update black, and run auto formatting over the codebase (#9381)
- Update black version to the latest
 - Run black auto formatting over the codebase
    - Run autoformatting according to [`docs/code_style.md
`](80d6dc9783/docs/code_style.md)
 - Update `code_style.md` docs around installing black to use the correct version
2021-02-16 22:32:34 +00:00
Patrick Cloke 1619802228
Various clean-ups to the logging context code (#8935) 2020-12-14 14:19:47 -05:00
David Teller f14428b25c
Allow spam-checker modules to be provide async methods. (#8890)
Spam checker modules can now provide async methods. This is implemented
in a backwards-compatible manner.
2020-12-11 14:05:15 -05:00
Erik Johnston 427ede619f
Add metrics for tracking 3PID /requestToken requests. (#8712)
The main use case is to see how many requests are being made, and how
many are second/third/etc attempts. If there are large number of retries
then that likely indicates a delivery problem.
2020-11-13 12:03:51 +00:00
Erik Johnston 2b7c180879
Start fewer opentracing spans (#8640)
#8567 started a span for every background process. This is good as it means all Synapse code that gets run should be in a span (unless in the sentinel logging context), but it means we generate about 15x the number of spans as we did previously.

This PR attempts to reduce that number by a) not starting one for send commands to Redis, and b) deferring starting background processes until after we're sure they're necessary.

I don't really know how much this will help.
2020-10-26 09:30:19 +00:00
Patrick Cloke 34a5696f93
Fix typos and spelling errors. (#8639) 2020-10-23 12:38:40 -04:00
Erik Johnston 1fcdbeb3ab
Start an opentracing span for background processes. (#8567)
This should reduce the number of `There was no active span` errors we
see.

Fixes #8510.
2020-10-19 12:26:26 +01:00
Richard van der Hoff 6d2d42f8fb Rewrite BucketCollector
This was a bit unweildy for what I wanted: in particular, I wanted to assign
each measurement straight into a bucket, rather than storing an intermediate
Counter which didn't do any bucketing at all.

I've replaced it with something that is hopefully a bit easier to use.

(I'm not entirely sure what the difference between a HistogramMetricFamily and
a GaugeHistogramMetricFamily is, but given our counters can go down as well as
up the latter *sounds* more accurate?)
2020-09-30 16:49:15 +01:00
Richard van der Hoff 1c8ca2c543 Fix _exposition.py to stop stripping samples
Our hacked-up `_exposition.py` was stripping out some samples it shouldn't
have been. Put them back in, to more closely match the upstream
`exposition.py`.
2020-09-30 16:45:43 +01:00
Richard van der Hoff ceafb5a1c6
Drop support for ancient prometheus_client (#8426)
Drop compatibility hacks for prometheus-client pre 0.4.0. Debian stretch and
Fedora 31 both have newer versions, so hopefully this will be ok.
2020-09-30 16:42:05 +01:00
Patrick Cloke aec294ee0d
Use slots in attrs classes where possible (#8296)
slots use less memory (and attribute access is faster) while slightly
limiting the flexibility of the class attributes. This focuses on objects
which are instantiated "often" and for short periods of time.
2020-09-14 12:50:06 -04:00
Patrick Cloke c619253db8
Stop sub-classing object (#8249) 2020-09-04 06:54:56 -04:00
Patrick Cloke d89692ea84
Convert runWithConnection to async. (#8121) 2020-08-19 07:09:24 -04:00
Patrick Cloke c36228c403
Convert run_as_background_process inner function to async. (#8032) 2020-08-06 08:20:42 -04:00
Richard van der Hoff 8ca39bd2c3
Improve stacktraces from exceptions in background processes (#7808)
use `Failure()` to fish out the real exception.
2020-07-09 13:01:33 +01:00
Erik Johnston a99658074d
Add some metrics for inbound and outbound federation processing times (#7755) 2020-06-30 16:58:06 +01:00
Christian Svensson 8bbe87f42d
Set Content-Length for Metrics requests (#7730)
HTTP requires the response to contain a Content-Length header unless chunked encoding is being used.
Prometheus metrics endpoint did not set this, causing software such as prometheus-proxy to not be able to scrape synapse for metrics.

Signed-off-by: Christian Svensson <blue@cmd.nu>
2020-06-23 18:06:01 +01:00
Patrick Cloke bd6dc17221
Replace iteritems/itervalues/iterkeys with native versions. (#7692) 2020-06-15 07:03:36 -04:00
Erik Johnston f5353eff21
Make inflight background metrics more efficient. (#7597)
Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
2020-05-29 13:25:32 +01:00
Ivan Shapovalov ac481a738e
synapse.metrics: implement detailed memory usage reporting on PyPy (#7536)
PyPy's gc.get_stats() returns an object containing detailed allocator statistics
which could be beneficial to collect as metrics.

Signed-off-by: Ivan Shapovalov <intelfx@intelfx.name>
2020-05-22 11:08:41 +01:00
Amber Brown 7cb8b4bc67
Allow configuration of Synapse's cache without using synctl or environment variables (#6391) 2020-05-11 18:45:23 +01:00
Richard van der Hoff 8c75667ad7
Add prometheus metrics for the number of active pushers (#7103) 2020-03-19 10:00:24 +00:00
Patrick Cloke 509e381afa
Clarify list/set/dict/tuple comprehensions and enforce via flake8 (#6957)
Ensure good comprehension hygiene using flake8-comprehensions.
2020-02-21 07:15:07 -05:00
Amber Brown 864f144543
Fix up some typechecking (#6150)
* type checking fixes

* changelog
2019-10-02 05:29:01 -07:00
Richard van der Hoff a96318127d Update comments and docstring 2019-09-25 18:17:39 +01:00
Erik Johnston 367158a609 Add wrap_as_background_process decorator.
This does the same thing as `run_as_background_process` but means we
don't need to create superfluous functions.
2019-09-24 15:53:17 +01:00
Amber Brown b617864cd9
Fix for structured logging tests stomping on logs (#6023) 2019-09-13 02:29:55 +10:00
Amber Brown aeb9b2179e
Add a build info metric to Prometheus (#6005) 2019-09-10 00:14:58 +10:00
Amber Brown 7ad1d76356
Support Prometheus_client 0.4.0+ (#5636) 2019-07-18 23:57:15 +10:00
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 071150ce19
Don't log GC 0s at INFO (#5557) 2019-06-28 21:45:33 +10:00
Amber Brown 32e7c9e7f2
Run Black. (#5482) 2019-06-20 19:32:02 +10:00
Erik Johnston 3ed595e327 Prometheus histograms are cumalative 2019-06-14 14:07:32 +01:00
Amber H. Brown a10c8dae85 fix prometheus rendering error 2019-06-14 21:09:33 +10:00
Amber Brown 6312d6cc7c
Expose statistics on extrems to prometheus (#5384) 2019-06-13 22:40:52 +10:00
Richard van der Hoff 82ca6d1f9f
Add metrics for number of outgoing EDUs, by type (#4695) 2019-02-20 14:13:14 +00:00
Erik Johnston 7c570bff74 Fix exception in background metrics collection
We attempted to iterate through a list on a separate thread without
doing the necessary copying.
2018-10-03 11:28:01 +01:00
Erik Johnston 94ae1dea3c Add missing logger 2018-09-20 17:05:34 +01:00
Erik Johnston 9ea408441f Handle exceptions thrown by background tasks
Fixes #3921
2018-09-20 16:15:21 +01:00
Erik Johnston d0f6c1ce21 Remove spurious comment 2018-09-14 15:12:36 +01:00