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Author SHA1 Message Date
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
Aliaksandr Valialkin
8f973e34fb lib/workingsetcache: properly switch to whole mode 
Previously the switch from `split` to `whole` mode had been performed too early,
e.g. when the current cache size became bigger than 1/4 of the allowed cache size.

Now it is performed when the current cache size becomes bigger than 1/2 of the allowed cache size.

This change can reduce memory usage for data ingestion path when big number of active time series are ingested.
 2021-07-05 15:16:11 +03:00
Aliaksandr Valialkin
43103be011 lib/{storage,mergeset}: increase cache timeout for data and index blocks from a minute to two minutes 
One minute cache timeout result in slower queries in some production workloads where the interval
between query execution is in the range 1 minute - 2 minutes.
 2021-07-05 15:16:11 +03:00
Aliaksandr Valialkin
54b9e1d3cb lib/cgroup: set GOGC to 50 by default if it isn't set 
This should reduce memory usage for typical VictoriaMetrics workloads by up to 50%
 2021-07-05 15:16:11 +03:00
Roman Khavronenko
bd6b8f7e31
move github-pages docs to the main repo (#1432) 
* move github-pages docs to the main repo

* rm github actions for copying docs to VictoriaMetrics/VictoriaMetrics.github.io
 2021-07-05 14:34:10 +03:00
Aliaksandr Valialkin
888d62e40c docs/CHANGELOG.md: document the bugfix for vm_merge_need_free_disk_space metric at 9a83e9018d 2021-07-05 12:01:08 +03:00
Aliaksandr Valialkin
6bef227388 docs/Articles.md: add an url to https://medium.com/ibm-garage/monitoring-of-multiple-openshift-clusters-with-victoriametrics-d4f0979e2544 2021-07-05 11:51:37 +03:00
Aliaksandr Valialkin
9a83e9018d lib/storage: properly detect free disk space shortage during data merge 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1373
 2021-07-02 17:40:54 +03:00
Aliaksandr Valialkin
f6bb130898 app/{vmselect,vmstorage}: clarify the description for -dedup.minScrapeInterval command-line flag 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1426
 2021-07-02 15:05:57 +03:00
Aliaksandr Valialkin
7088f17494 lib/promscrape/discovery/consul: use case-insensitive comparison for service names 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1424
 2021-07-02 14:49:27 +03:00
Aliaksandr Valialkin
6e406083f2 lib/promauth: cache the client TLS certificate for up to a second 
This should reduce CPU usage when TLS connections are established at a high rate.
 2021-07-02 13:21:51 +03:00
Aliaksandr Valialkin
a93da746c0 vendor: update github.com/VictoriaMetrics/fasthttp from v1.0.15 to v1.0.16 
This should help with proper copying of tls.Config struct after it has been set up in lib/promauth.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1420
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/470
 2021-07-02 12:03:32 +03:00
Aliaksandr Valialkin
1e52f11e87 docs/Cluster-VictoriaMetrics.md: typo fix: siplify -> simplify 2021-07-02 10:50:55 +03:00
Aliaksandr Valialkin
5beb099ff9 docs/Cluster-VictoriaMetrics.md: add a chapter describing a toy cluster setup on a single host 
While at it, refer to available tools, which can simplify cluster setup
 2021-07-02 10:48:56 +03:00
Aliaksandr Valialkin
158c50c0ee lib/promauth: reload TLS certificates from disk on every mTLS connection as Prometheus does 
This allows updating client certificates without the need to restart vmagent and/or single-node VictoriaMetrics.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1420
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/470
 2021-07-01 15:27:47 +03:00
Aliaksandr Valialkin
02ed4b8b46 docs/CHANGELOG.md: document ae485c2bfd 2021-07-01 11:51:19 +03:00
Aliaksandr Valialkin
c25b839078 lib/workingsetcache: reset the cache mode when the cache is reset 
This should reduce memory usage if the working set is reduced after the cache reset.
 2021-07-01 11:50:11 +03:00
Nikolay
ae485c2bfd
fixes /targets button style (#1423) 
* fixes /targets button style
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1422

* updates boostrap version
 2021-07-01 11:48:07 +03:00
Aliaksandr Valialkin
00bbe1608b deployment/docker: upgrade alpine image from v3.13.5 to v3.14.0 2021-07-01 10:56:56 +03:00
Roman Khavronenko
a38a6fe8ad
dashboard: move panel Disk writes/reads to Resource usage row (#1417) 
* dashboard: move panel `Disk writes/reads` to `Resource usage` row

* dashboard: make Stats panel consistent with Cluster dashboard
 2021-07-01 05:46:26 +03:00
Aliaksandr Valialkin
c93cee8de8 lib/{mergeset,storage}: reduce the maximum lifetime for cached indexdb and data blocks from 2 minutes to a minute 
This should reduce memory usage on a system with high number of active time series and a high churn rate.
One minute is enough for caching the blocks needed for repeated queries (e.g. alerting rules, recording rules and dashboard refreshes).
 2021-06-29 19:57:07 +03:00
Aliaksandr Valialkin
fc12484734 lib/mergeset: switch from sync.Pool to a channel for a pool for inmemoryBlock structs 
This should reduce memory usage for the pool on systems with big number of CPU cores.

The sync.Pool maintains per-CPU pools, so the total number of objects in the pool
is proportional to the number of available CPU cores. The channel limits the number
of pooled objects by its own capacity. This means smaller number of pooled objects on average.
 2021-06-29 19:56:59 +03:00
Aliaksandr Valialkin
9ce211a514 lib/promscrape/discovery/docker: fix golint warning: struct field Id should be ID 2021-06-29 13:12:28 +03:00
Aliaksandr Valialkin
5506cff76e lib/storage: put indexDBName into the key for dateTagFilter cache and for uselessTagFilters cache 
This should prevent from stats overwriting when the previous indexdb is queried.
 2021-06-29 12:40:05 +03:00
Aliaksandr Valialkin
1b0501a09e lib/promscrape: typo fix in /targets output 
The typo has been introduced in fb72a2133f

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1408
 2021-06-28 21:26:37 +03:00
Aliaksandr Valialkin
3af2162085 docs/vmagent.md: mention about docker_sd_config support 2021-06-25 20:52:15 +03:00
Aliaksandr Valialkin
008033a374 docs/CHANGELOG.md: cut v1.62.0 2021-06-25 13:29:38 +03:00
Aliaksandr Valialkin
cb5453953f lib/promscrape: split docker and dockerswarm service discovery code bases, since they have very little in common 
This is a follow up after c85a5b7fcb
 2021-06-25 13:20:20 +03:00
Aliaksandr Valialkin
a69045e440 lib/promscrape: consistently sort service discovery routines 
This should simplify further maintenance of the code
 2021-06-25 12:10:46 +03:00
Lu Jiajing
c85a5b7fcb
Support Docker ServiceDiscovery (#1402) 
* add docker discovery

* add test

* add labels test and add scrape work

* remove TODO

* refactor to merge apiConfig and sdConfig

* apply suggestion
 2021-06-25 11:42:47 +03:00
Nikolay
434e33da9b
adds missing MustStop call to do and http sd (#1404) 2021-06-25 11:39:18 +03:00
Aliaksandr Valialkin
b50e2ec88c vendor: make vendor-update 2021-06-24 17:33:42 +03:00
Aliaksandr Valialkin
4345c07777 docs: consistently put the link to articles and slides about VictoriaMetrics after the links to case studies 2021-06-24 15:37:38 +03:00
Aliaksandr Valialkin
b2fca1ab22 docs/CaseStudies.md: add a case study for DFKI 2021-06-24 15:24:39 +03:00
Aliaksandr Valialkin
906fca9e88 docs/CaseStudies.md: add Groove X case study 2021-06-24 15:04:49 +03:00
Aliaksandr Valialkin
3c3694f72a README.md: add missing linke to Sensedia case study 2021-06-24 14:37:49 +03:00