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369 commits

Author SHA1 Message Date
Aliaksandr Valialkin
512addc608 app/{vminsert,vmagent}: add -sortLabels command-line option for sorting time series labels before ingesting them in the storage 
This option can be useful when samples for the same time series are ingested with distinct order of labels.
For example, metric{k1="v1",k2="v2"} and metric{k2="v2",k1="v1"}.
 2021-03-31 23:27:21 +03:00
Aliaksandr Valialkin
ae1c653d55 lib/storage: reduce memory usage when ingesting samples for the same time series with distinct order of labels 2021-03-31 21:22:40 +03:00
Aliaksandr Valialkin
940a547116 lib/storage: do not update b.nextIdx if no samples are removed because of retention 2021-03-29 12:13:38 +03:00
Aliaksandr Valialkin
9c2be144cf app/vmselect: log the metric which trigger rollup result cache reset 
This should help finding the source of stale metrics
 2021-03-25 21:32:28 +02:00
Aliaksandr Valialkin
f971fe86cd lib/storage: tune loopsCountPerMetricNameMatch according to production workload 2021-03-25 13:48:17 +02:00
Aliaksandr Valialkin
9947c65df3 lib/storage: do not reload metricName for the same metricID in Search.NextMetricBlock 
This should speed up Search.NextMetricBlock a bit
 2021-03-23 17:59:34 +02:00
Aliaksandr Valialkin
12ca0efc19 lib/storage: respect the deadline passed to Storage.SearchMetricNames 2021-03-22 23:03:00 +02:00
Aliaksandr Valialkin
40e47935e7 lib/storage: improve Search.NextMetricBlock performance by using MetricID->MetricName cache 2021-03-22 23:02:59 +02:00
Aliaksandr Valialkin
1618b0ca6d lib/storage: tune loopsCountPerMetricNameMatch 2021-03-22 12:57:54 +02:00
Aliaksandr Valialkin
7503111feb lib/storage: small code simplification after 6cee5338b2 2021-03-18 15:22:39 +02:00
Aliaksandr Valialkin
4443254fb9 lib/storage: prevent from infinite loop if {__graphite__="..."} filter matches a metric name with *, [ or { chars 
The idea has been borrowed from https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1137
 2021-03-18 14:57:39 +02:00
Aliaksandr Valialkin
b859fe7879 lib/storage: faster move heavy filters to the end of list 2021-03-17 15:11:56 +02:00
Aliaksandr Valialkin
41fe707bec lib/storage: limit loops count in order to reduce max CPU usage during filter search 2021-03-17 00:48:44 +02:00
Aliaksandr Valialkin
e2a0c8bd72 lib/storage: do not modify filterLoopsCount stats with loopsCount stats 
Such a modification can result in incorrect filter sorting later
 2021-03-17 00:48:44 +02:00
Aliaksandr Valialkin
727ded9d4e lib/storage: time series search optimization according to production workload profiling 
Do not pass filter metric ids to getMetricIDsForTagFilter, since it has been appeared that this slows down
the function by multiple times when it finds big number of metricIDs (tens of millions).
 2021-03-16 20:08:43 +02:00
Aliaksandr Valialkin
f4a44d6c0d lib/storage: further tuning for time series search 2021-03-16 18:47:29 +02:00
Aliaksandr Valialkin
d074326970 app/vmstorage: add -logNewSeries command-line flag for determining the source of series churn rate 2021-03-15 22:40:28 +02:00
Aliaksandr Valialkin
fc902734d9 lib/storage: further tuning for time series selector code 2021-03-15 20:32:37 +02:00
Aliaksandr Valialkin
1c26020080 lib/storage: tune per-day index search 2021-03-15 13:36:36 +02:00
Aliaksandr Valialkin
b2732575f7 lib/storage: further tune filters sorting logic 2021-03-12 00:51:35 +02:00
John Belmonte
edf39aa225 spelling fix: adjacent (#1115) 2021-03-09 09:19:16 +02:00
Aliaksandr Valialkin
c4a0bd5eac lib/storage: go fmt 2021-03-08 11:59:31 +02:00
Aliaksandr Valialkin
c76a904bb0 lib/storage: tune loopsCount estimations in getMetricIDsForTagFilterSlow 
The adjusted estmations give up to 2x lower median response times on 200qps /api/v1/query_range workload
 2021-03-07 21:17:48 +02:00
Aliaksandr Valialkin
c8dde1fd6b lib/storage: typo fix: umarshal -> unmarshal 2021-03-02 20:48:44 +02:00
Aliaksandr Valialkin
06676c8feb lib/storage: consistency renaming: durationsPerDateTagFilterCache -> loopsPerDateTagFilterCache 2021-02-23 15:50:08 +02:00
faceair
b1409a7413 lib/storage: correct tagfilter match cost (#1079) 2021-02-22 21:54:37 +02:00
Aliaksandr Valialkin
587132555f lib/mergeset: reduce memory usage for inmemoryBlock by using more compact items representation 
This also should reduce CPU time spent by GC, since inmemoryBlock.items don't have pointers now,
so GC doesn't need visiting them.
 2021-02-21 22:09:10 +02:00
Aliaksandr Valialkin
bd3bcdc43c lib/storage: do not re-calculate stats for heavy tag filters 
This should reduce the number of slow queries when stats for heavy tag filters was recalculated.
 2021-02-21 21:43:37 +02:00
Aliaksandr Valialkin
b8a5ee2e93 lib/{mergeset,storage}: allow merging smaller number of small parts 
While this may increase CPU and disk IO usage needed for background merge,
this also recudes CPU usage during queries in production. This is because
such queries tend to read recently added data and it is better to have lower number
of parts for such data in order to reduce CPU usage.

This partially reverts ebf8da3730
 2021-02-21 21:43:37 +02:00
Aliaksandr Valialkin
34195218e1 lib/{mergeset,storage}: do not use pools for indexBlock and inmemoryBlock during their caching, since this results in higher memory usage in production without any performance gains 2021-02-21 21:43:37 +02:00
Aliaksandr Valialkin
10ccb92e4d lib/storage: use composite index for a query with a name filter and negative filters 2021-02-18 18:57:45 +02:00
Aliaksandr Valialkin
418de71509 lib/storage: properly handle queries containing a filter on metric name plus any number of negative filters and zero non-negative filters 
Example: `node_cpu_seconds_total{mode!="idle"}`
 2021-02-18 18:33:05 +02:00
Aliaksandr Valialkin
628b8eb55e lib/storage: prevent from running identical heavy tag filters in concurrent queries when measuring the number of loops for such tag filter. 
This should reduce CPU usage spikes when measuring the number of loops needed for heavy tag filters
 2021-02-18 14:01:18 +02:00
Aliaksandr Valialkin
fd41f070db lib/storage: sort tag filters by the number of loops they need for the execution 
This metric should work better than the filter execution duration, since it cannot be distorted
by concurrently running queries.
 2021-02-18 12:52:29 +02:00
Aliaksandr Valialkin
9566015a36 Revert "lib/mergeset: tune lifetime for entries inside block caches" 
This reverts commit 458c89324d.

Production testing revealed zero improvements for memory usage with reduced lifetime for entries in block caches.
 2021-02-17 20:42:15 +02:00
Aliaksandr Valialkin
b4c7d5992b lib/storage: move composite filters to the top during sorting 2021-02-17 20:26:32 +02:00
Aliaksandr Valialkin
2005d8212a lib/storage: return back filter arg to getMetricIDsForTagFilter function 
The filter arg has been removed in the commit c7ee2fabb8
because it was preventing from caching the number of matching time series per each tf.

Now the cache contains duration for tf execution, so the filter shouldn't break such caching.
 2021-02-17 19:33:15 +02:00
Aliaksandr Valialkin
83da939947 app/vmstorage: export vm_composite_filter_success_conversions_total and vm_composite_filter_missing_conversions_total metrics 2021-02-17 19:13:49 +02:00
Aliaksandr Valialkin
0c5bb2a397 lib/storage: revert ecf132933e, since negative filters require the same amount of work as non-negative filters 2021-02-17 18:56:13 +02:00
Aliaksandr Valialkin
bbc287ea6a lib/storage: tag filters sorting... 2021-02-17 18:56:12 +02:00
Aliaksandr Valialkin
f5e841c1e9 lib/storage: further tune tag filters sorting 2021-02-17 17:28:36 +02:00
Aliaksandr Valialkin
9d1f14d94c lib/storage: tune the logic for sorting tag filters according the their exeuction times 2021-02-17 15:02:19 +02:00
Aliaksandr Valialkin
1a19702d92 lib/storage: make sure that nobody uses partitions when closing the table 2021-02-17 15:02:18 +02:00
Aliaksandr Valialkin
1ab7a8dfd5 lib/storage: more tuning for tag filters sorting according the time they take 2021-02-16 21:27:27 +02:00
Aliaksandr Valialkin
35a23234ca lib/mergeset: tune lifetime for entries inside block caches 
This should reduce memory usage in general case without significant CPU usage increase
 2021-02-16 18:12:32 +02:00
Aliaksandr Valialkin
55952f8f2e lib/storage: tune sorting for tag filters 2021-02-16 13:07:42 +02:00
Aliaksandr Valialkin
3eae03a337 lib/storage: increase match cost for negative tag filters, since they need to scan all the label pairs 2021-02-15 16:39:52 +02:00
Aliaksandr Valialkin
46e98ed490 vendor: update github.com/VictoriaMetrics/metrics from v1.13.1 to v1.14.0 
The new version switches from log-linear histograms to log-based histograms,
which provide up to 3.6 times better accuracy.
 2021-02-15 15:11:15 +02:00
Aliaksandr Valialkin
93ff866e91 lib/storage: reduce the minimum supported retention for inverted index from one month to one day 2021-02-15 15:11:15 +02:00
Aliaksandr Valialkin
6f3bbf21b8 lib/storage: sort tag filters by actual execution time instead of by the number of matching time series 
This should improve query speed for queries with regexp filters matching small number of time series
on a label with big number of unique values.
 2021-02-15 00:19:46 +02:00