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* Add a metric which increments when a request is receivedRichard van der Hoff2018-03-091-0/+16
| | | | | | It's useful to know when there are peaks in incoming requests - which isn't quite the same as there being peaks in outgoing responses, due to the time taken to handle requests.
* report metrics on number of cache evictionsRichard van der Hoff2018-02-051-1/+10
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* Add some comments about the reactor tick time metricRichard van der Hoff2018-01-191-1/+6
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* better exception logging in callbackmetricsRichard van der Hoff2018-01-181-1/+8
| | | | when we fail to render a metric, give a clue as to which metric it was
* mechanism to render metrics with alternative namesRichard van der Hoff2018-01-151-13/+40
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* Add some comments to metrics classesRichard van der Hoff2018-01-151-1/+27
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* Make Counter render floatsRichard van der Hoff2018-01-121-3/+10
| | | | | | | | Prometheus handles all metrics as floats, and sometimes we store non-integer values in them (notably, durations in seconds), so let's render them as floats too. (Note that the standard client libraries also treat Counters as floats.)
* Rename the python-specific metrics now the docs claim that we have donePaul "LeoNerd" Evans2016-11-031-7/+9
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* Since we don't export per-filetype fd counts any more, delete all the code ↵Paul "LeoNerd" Evans2016-11-031-36/+4
| | | | related to that too
* Remove now-unused 'resource' importPaul "LeoNerd" Evans2016-11-031-8/+0
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* Now we have new-style metrics don't bother exporting legacy-named process onesPaul "LeoNerd" Evans2016-11-031-16/+1
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* Set up the process collector during metrics __init__; that way all ↵Paul "LeoNerd" Evans2016-10-271-0/+3
| | | | split-process workers have it
* Pass the Metrics group into the process collector instead of having it find ↵Paul "LeoNerd" Evans2016-10-271-7/+3
| | | | its own one; this avoids it needing to import from synapse.metrics
* Allow creation of a 'subspace' within a Metrics object, returning another onePaul "LeoNerd" Evans2016-10-271-0/+3
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* Split callback metric lambda functions down onto their own lines to keep ↵Paul "LeoNerd" Evans2016-10-191-8/+16
| | | | line lengths under 90
* Adjust code for <100 char line limitPaul "LeoNerd" Evans2016-10-191-1/+1
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* Cut the raw /proc/self/stat line up into named fields at collection timePaul "LeoNerd" Evans2016-10-191-8/+22
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* Move the process metrics collector code into its own filePaul "LeoNerd" Evans2016-10-192-141/+159
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* A slightly neater way to manage metric collector functionsPaul "LeoNerd" Evans2016-10-191-2/+8
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* appease pep8Paul "LeoNerd" Evans2016-10-191-3/+5
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* Also guard /proc/self/fds-related code with a suitable psuedoconstantPaul "LeoNerd" Evans2016-10-191-3/+5
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* Guard registration of process-wide metrics by existence of the requisite ↵Paul "LeoNerd" Evans2016-10-191-45/+50
| | | | /proc entries
* Add standard process_start_time_seconds metricPaul "LeoNerd" Evans2016-10-191-0/+15
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* Add standard process_max_fds metricPaul "LeoNerd" Evans2016-10-191-0/+13
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* Add standard process_open_fds metricPaul "LeoNerd" Evans2016-10-191-20/+29
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* Add standard process_*_memory_bytes metricsPaul "LeoNerd" Evans2016-10-191-0/+8
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* Use /proc/self/stat to generate the new process_cpu_*_seconds_total metricsPaul "LeoNerd" Evans2016-10-191-4/+12
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* Export CPU usage metrics also under prometheus-standard metric namePaul "LeoNerd" Evans2016-10-191-0/+15
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* Callback metric values might not just be integers - allow floatsPaul "LeoNerd" Evans2016-10-191-2/+2
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* Make psutil optionalErik Johnston2016-08-082-5/+13
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* Don't explode if we have no snapshots yetErik Johnston2016-07-201-0/+3
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* Add metrics for psutil derived memory usageErik Johnston2016-07-202-1/+46
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* Don't track total objects as its too expensive to calculateErik Johnston2016-06-071-1/+0
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* Record some more GC metricsErik Johnston2016-06-071-0/+5
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* Also record number of unreachable objectsErik Johnston2016-06-071-2/+4
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* Change the way we do statsErik Johnston2016-06-071-7/+3
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* Merge pull request #771 from matrix-org/erikj/gc_tickErik Johnston2016-06-071-0/+26
|\ | | | | Manually run GC on reactor tick.
| * Count number of GC collectsErik Johnston2016-05-161-5/+11
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| * Add a commentErik Johnston2016-05-131-0/+5
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| * Manually run GC on reactor tick.Erik Johnston2016-05-091-0/+15
| | | | | | | | This also adds a metric for amount of time spent in GC.
* | Change CacheMetrics to be quickerErik Johnston2016-06-032-32/+28
|/ | | | | | We change it so that each cache has an individual CacheMetric, instead of having one global CacheMetric. This means that when a cache tries to increment a counter it does not need to go through so many indirections.
* copyrightsMatthew Hodgson2016-01-073-3/+3
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* Check that /proc/self/fd exists before listing itMark Haines2015-09-071-0/+4
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* The maxrss reported by getrusage is in kilobytes, not pagesMark Haines2015-09-071-4/+3
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* Also check for presence of 'threadCallQueue' in reactorErik Johnston2015-08-181-1/+8
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* Use more helpful variable namesErik Johnston2015-08-181-3/+3
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* Fix pending_calls metric to not lieErik Johnston2015-08-141-3/+18
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* Don't time getDelayedCallsErik Johnston2015-08-131-1/+1
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* Add some metrics about the reactorErik Johnston2015-08-131-0/+29
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* Appease pep8Paul "LeoNerd" Evans2015-04-011-0/+1
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* Report process open filehandles in metricsPaul "LeoNerd" Evans2015-04-011-0/+34
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* Appease pyflakesPaul "LeoNerd" Evans2015-03-121-1/+1
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* Delete unused import of NOT_READY_YETPaul "LeoNerd" Evans2015-03-121-1/+0
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* Appease pep8Paul "LeoNerd" Evans2015-03-123-7/+9
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* Replace the @metrics.counted annotations in federation with ↵Paul "LeoNerd" Evans2015-03-121-17/+0
| | | | specifically-written counters and distributions
* Add an .inc_by() method to CounterMetric; implement DistributionMetric a ↵Paul "LeoNerd" Evans2015-03-121-23/+14
| | | | neater way
* Don't forbid '_' in metric basenames any more, to allow things like foo_timePaul "LeoNerd" Evans2015-03-121-5/+0
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* Rename TimerMetric to DistributionMetric; as it could count more than just timePaul "LeoNerd" Evans2015-03-122-14/+18
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* Export CacheMetric as hits+total, rather than hits+misses, as it's easier to ↵Paul "LeoNerd" Evans2015-03-121-5/+6
| | | | derive hit ratio from that
* Remember to emit final linefeed from /metrics page, or Prometheus gets upsetPaul "LeoNerd" Evans2015-03-121-0/+2
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* Prometheus needs "escaped" label valuesPaul "LeoNerd" Evans2015-03-121-2/+6
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* Kill unused CounterMetric.fetch() methodPaul "LeoNerd" Evans2015-03-121-3/+0
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* Use _ instead of . as a metric namespacing separator, for PrometheusPaul "LeoNerd" Evans2015-03-121-3/+11
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* Have all @metrics.counted use a single metric name vectored on the method ↵Paul "LeoNerd" Evans2015-03-121-2/+9
| | | | name, rather than a brand new scalar counter per counted method
* Bugfix to rendering output of vectored TimerMetricsPaul "LeoNerd" Evans2015-03-121-3/+2
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* Rename Metrics' "keys" to "labels"Paul "LeoNerd" Evans2015-03-121-12/+12
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* Provide some process resource usage metricsPaul "LeoNerd" Evans2015-03-121-0/+27
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* Neater register_* methods on overall Metrics containerPaul "LeoNerd" Evans2015-03-121-22/+12
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* Neater implementation of metric render methods by pulling out 'render' as a ↵Paul "LeoNerd" Evans2015-03-121-18/+15
| | | | base method that calls self.render_item
* Initial hack at a TimerMetric; for storing counts + duration accumulatorsPaul "LeoNerd" Evans2015-03-121-0/+48
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* Ensure that /_synapse/metrics response is UTF-8 encodedPaul "LeoNerd" Evans2015-03-121-1/+2
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* Implement vector CallbackMetricsPaul "LeoNerd" Evans2015-03-121-2/+6
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* Neater introspection methods on BaseMetric so that subclasses don't need to ↵Paul "LeoNerd" Evans2015-03-121-4/+11
| | | | touch self.keys directly
* Rename CacheCounterMetric to just CacheMetric; add a CallbackMetric ↵Paul "LeoNerd" Evans2015-03-122-7/+12
| | | | component to give the size of the cache
* Ensure that exceptions while rendering individual metrics don't stop others ↵Paul "LeoNerd" Evans2015-03-121-1/+10
| | | | from being rendered anyway - especially useful for CallbackMetric
* Initial attempt at a scalar callback-based metric to give instantaneous ↵Paul "LeoNerd" Evans2015-03-122-1/+24
| | | | snapshot gauges
* Create the concept of a cachecounter metric; generating two counters ↵Paul "LeoNerd" Evans2015-03-122-7/+47
| | | | specific to caches
* Have the MetricsResource actually render metric countersPaul "LeoNerd" Evans2015-03-121-1/+3
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* An initial implementation of a 'metrics' instance, similar to a 'logger' for ↵Paul "LeoNerd" Evans2015-03-121-0/+69
| | | | keeping counter stats on method calls
* Initial tiny attempt at (vectorable) counter metricsPaul "LeoNerd" Evans2015-03-121-0/+54
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* A trivial 'hello world'-style resource on /_synapse/metrics, with optional ↵Paul "LeoNerd" Evans2015-03-121-0/+37
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