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Author SHA1 Message Date
Aliaksandr Valialkin
ed10141ff8 app/vmselect/netstorage: use more scalable algorithm for ditributing the work among among multiple channels on systems with big number of CPU cores 2021-07-16 00:35:23 +03:00
Aliaksandr Valialkin
ca75432e66 app/vmselect: do not track queries with less than 1ms execution time at /api/v1/status/top_queries 
This should improve the readability and usefullness of the /api/v1/status/top_queries when debugging slow queries
or queries that take too much cpu time.
 2021-07-15 16:44:28 +03:00
Aliaksandr Valialkin
4ba3fd9e6d lib/workingsetcache: switch from split cache to full cache after the cache size exceeds 95% of split capacity 
Previously the switch occurred when the cache size becomes 100% of its capacity. The cache size could never reach 100% capacity.
This could prevent from switching from the split cache to full cache, thus reducing the cache effectiveness.
 2021-07-15 16:12:04 +03:00
Aliaksandr Valialkin
f4e81aef7e app/vmselect/netstorage: add -search.maxSamplesPerSeries command-line option for limiting the number of samples a query can process per each series 
This should prevent from out of memory crashes like in https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1067
 2021-07-15 16:03:28 +03:00
Aliaksandr Valialkin
e6ef97a5ee app/vmselect/netstorage: improve scalability of series unpacking on multi-CPU systems 2021-07-15 15:41:58 +03:00
Aliaksandr Valialkin
171d44acd8 docs/CHANGELOG.md: typo fix: suffxies->suffixes 2021-07-15 15:02:20 +03:00
Aliaksandr Valialkin
f81d972581 app/vmui/README.md: typo fix: naviate->navigate 2021-07-15 15:02:04 +03:00
Aliaksandr Valialkin
61cc13c16f docs/CHANGELOG.md: cut v1.63.0 2021-07-15 14:02:13 +03:00
Aliaksandr Valialkin
b060d8bf53 vendor: make vendor-update 2021-07-15 12:55:40 +03:00
Aliaksandr Valialkin
d472b03e34 lib/storage: make sure the second call to DeduplicateSamples and deduplicateSamplesDuringMerge doesnt change samples 2021-07-15 12:17:45 +03:00
Aliaksandr Valialkin
682662b2ae lib/storage: remove cache directory if it contains reset_cache_on_startup file 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1447
 2021-07-13 17:58:51 +03:00
Aliaksandr Valialkin
2b0e3efa5c .github/workflows/wiki.yml: properly copy subdirectories 2021-07-13 17:35:02 +03:00
Aliaksandr Valialkin
8d99e94a52 docs: clarify why spare CPU and RAM resources are needed in capacity planning 2021-07-13 15:48:25 +03:00
Aliaksandr Valialkin
8d0ec47be9 docs/Cluster-VictoriaMetrics.md: clarify the docs about the needed values for -dedup.minScrapeInterval at vmselect during replication when the data is pushed from HA pair 2021-07-13 15:43:02 +03:00
Aliaksandr Valialkin
2df66dad7b lib/httpserver: add is_set label to flag metrics 
This label allows determining the set flags with the query `flag{is_set="true"}`
 2021-07-13 15:10:13 +03:00
Aliaksandr Valialkin
5bc240bffe vendor: make vendor-update 2021-07-13 14:30:19 +03:00
Aliaksandr Valialkin
244d0fe5d7 deployment/docker: update Go builder from v1.16.5 to v1.16.6 
Ths Go release has the following bugfixes: https://github.com/golang/go/issues?q=milestone%3AGo1.16.6+label%3ACherryPickApproved
 2021-07-13 14:25:41 +03:00
Aliaksandr Valialkin
a925d5a3e1 app/vmselect/promql: duration handling improvements in MetricsQL queries 
- Support durations anywhere in MetricsQL queries. E.g. sum_over_time(m[1h])/1h is equivalent to sum_over_time(m[1h])/3600
- Support durations without suffix. E.g. rate(m[300]) is equivalent to rate(m[5m])
 2021-07-12 17:16:41 +03:00
Aliaksandr Valialkin
f9de546139 lib/storage: reset perKeyMisses stats less frequently 
This should reduce CPU usage for queries executed with intervals higher than 30 seconds
 2021-07-12 14:33:42 +03:00
Aliaksandr Valialkin
4f80b2f230 lib/storage: properly limit the size of storage/date_metricID cache 2021-07-12 14:25:44 +03:00
Aliaksandr Valialkin
f3a5465ece docs/CHANGELOG.md: document the change from bfba4c28a4 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1444
 2021-07-12 12:44:06 +03:00
Aliaksandr Valialkin
bfba4c28a4 app/vmalert: accept Prometheus-like durations in interval config option inside group section 2021-07-12 12:35:17 +03:00
Aliaksandr Valialkin
a684408e27 docs: update http://slack.victoriametrics.com to https://slack.victoriametrics.com 2021-07-12 10:57:16 +03:00
Aliaksandr Valialkin
8ca2799478 lib/storage: properly determine when the deduplication is needed in needsDedup 
Previously needsDedup() could return true if the de-duplication wasn't needed for the following case:

         d < interval
           /     \
   |        v | v        |
     interval   interval

Now it properly returns false for this case
 2021-07-12 10:53:30 +03:00
Aliaksandr Valialkin
f539772ca6 docs: sync with the cluster branch 2021-07-10 12:45:38 +03:00
Aliaksandr Valialkin
8c764e88f0 app/vmui: move source code from https://github.com/VictoriaMetrics/vmui to app/vmui 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1413
 2021-07-09 17:15:23 +03:00
Aliaksandr Valialkin
2be340a4c9 docs: clarify what does "workload" mean in capacity planning docs 2021-07-09 12:49:53 +03:00
Aliaksandr Valialkin
c5f0b454f0 app/vmselect: follow-up after aa11ef6d3b 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1413
 2021-07-07 17:43:35 +03:00
tony
e9e35a7d6a add vmui for vmselect component (#1431) 
Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2021-07-07 17:33:02 +03:00
Aliaksandr Valialkin
92b8380fdf docs/Cluster-VictoriaMetrics.md: improve capacity planning recommendations 2021-07-07 16:22:51 +03:00
Aliaksandr Valialkin
1152de4321 vendor: make vendor-update 2021-07-07 16:05:04 +03:00
Aliaksandr Valialkin
7e77980608 vendor: update github.com/VictoriaMetrics/metrics from v1.17.2 to v1.17.3 2021-07-07 16:00:25 +03:00
Aliaksandr Valialkin
6e0553c92e lib/mergeset: cache indexBlock items only on the second request 
This should reduce the indexdb/indexBlocks cache size, since it won't contain one-time-wonders items.
 2021-07-07 15:23:06 +03:00
Aliaksandr Valialkin
ed944313b0 app/{vminsert,vmselect}: export vminsert_request_duration_seconds and vmselect_request_duration_seconds histograms 2021-07-07 13:25:21 +03:00
Aliaksandr Valialkin
766edbc421 lib/httpserver: print full requestURI in httpserver.Errorf 
This should simplify debugging.
 2021-07-07 13:09:40 +03:00
Aliaksandr Valialkin
c55a64ba08 docs: clarify capacity planning docs 2021-07-07 12:46:55 +03:00
Aliaksandr Valialkin
e843bd7bd7 lib/storage: do not cache inmemoryBlock entries requested only once (aka one-time-wonder items) 
This should reduce the cache size and memory usage for the indexdb/dataBlocks cache
 2021-07-07 10:58:51 +03:00
Aliaksandr Valialkin
8b262d4ba7 lib/storage: periodically reset prefetchedMetricIDs cache in order to limit its size under high churn rate 2021-07-07 10:58:51 +03:00
Roman Khavronenko
2f54559c89
alerts: sync alert expression for DiskRunsOutOfSpaceIn3Days with dashboard (#1436) 2021-07-07 10:31:09 +03:00
Aliaksandr Valialkin
a7694092b8 Revert "lib/uint64set: allow reusing bucket16 structs inside uint64set.Set via uint64set.Release method" 
This reverts commit 7c6d3981bf.

Reason for revert: high contention at bucket16Pool on systems with big number of CPU cores.
This slows down query processing significantly.
 2021-07-06 18:21:35 +03:00
Aliaksandr Valialkin
8aa9bba9bd lib/{mergeset,storage}: switch from sync.Pool to chan-based pool for inmemoryPart objects 
This should reduce memory usage on systems with big number of CPU cores,
since every inmemoryPart object occupies at least 64KB of memory and sync.Pool maintains
a separate pool inmemoryPart objects per each CPU core.

Though the new scheme for the pool worsens per-cpu cache locality, this should be amortized
by big sizes of inmemoryPart objects.
 2021-07-06 16:28:41 +03:00
Aliaksandr Valialkin
7c6d3981bf lib/uint64set: allow reusing bucket16 structs inside uint64set.Set via uint64set.Release method 
This reduces the load on memory allocator in Go runtime in production workload.
 2021-07-06 15:35:03 +03:00
Aliaksandr Valialkin
78c9174682 lib/mergeset: increase pool capacity for inmemoryBlock according to collected profiles from production workload 
CPU and memory profiles show that the pool capacity for inmemoryBlock objects is too small.
This results in the increased load on memory allocation code in Go runtime.
Increase the pool capacity in order to reduce the load on Go runtime.
 2021-07-06 13:41:34 +03:00
Aliaksandr Valialkin
f71e4d1853 lib/mergeset: limit the frequency for flushCallback calls to once per 10 seconds 
This should improve hit ratio for tagFiltersCache when big number of new time series are constantly registered
(aka high churn rate). This, in turn, should reduce CPU usage for queries over such time series.
 2021-07-06 12:17:17 +03:00
Aliaksandr Valialkin
f3acf065c9 lib/storage: consistency renaming: tagCache -> tagFiltersCache 
This improves code readability
 2021-07-06 11:03:51 +03:00
Aliaksandr Valialkin
0020b9f904 lib/workingsetcache: properly update stats for requests and cache misses 
Previously the stats for cache misses could be improperly counted, because it had inflated cache misses
if the entry was missing in the curr cache, but was existing in the prev cache.

The same applies to cache requests - they were inflated if the entry was missing in the curr cache.
 2021-07-06 10:53:32 +03:00
Roman Khavronenko
75f12bfe78
add option to add Copy button for code snippets (#1433) 
To add a Copy button wrap code snippet with the following element:
```
<div class="with-copy" markdown="1">

<your-code-snippet>

</div>
```

See the changes to `Kubernetes monitoring with VictoriaMetrics Single` for details.
 2021-07-06 08:23:39 +03:00
Aliaksandr Valialkin
4cf47163c1 lib/workingsetcache: fix cache capacity calculations after 4f0003f182 2021-07-05 17:11:57 +03:00
Aliaksandr Valialkin
4f0003f182 lib/workingsetcache: typo fixes after d0c830039d 2021-07-05 15:35:37 +03:00
Aliaksandr Valialkin
d0c830039d lib/storage: tune cache sizes according to production workload 2021-07-05 15:16:11 +03:00