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Author SHA1 Message Date
Aliaksandr Valialkin
1f2a7c3863 docs/Cluster-VictoriaMetrics.md: sync with cluster README.md 2021-03-15 11:51:03 +02:00
Aliaksandr Valialkin
7f52aae20c lib/promscrape: an attempt to reduce memory usage when vmagent scrapes targets with varying number of metrics 
Do not cache too big byte buffers and too big writeRequestCtx objects,
since it is cheaper to re-create them instead of wasting RAM for their caching.

This reverts 7f6f350ee1
 2021-03-15 11:49:29 +02:00
sequix
df10d80257 fix vmbackup url in readme 2021-03-15 09:55:11 +02:00
Aliaksandr Valialkin
33cd6c26d3 lib/promscrape: return back the logic for flushing big buffers to storage from the commit 3fd8653b40 
This should reduce memory usage when vmagent scrapes targets with big number of metrics and `-promscrape.streamParse` isn't enabled
 2021-03-14 22:25:37 +02:00
Aliaksandr Valialkin
894246176f lib/promscrape/discovery/kubernetes: do not start object watcher until initial objects are loaded 2021-03-14 21:56:16 +02:00
Aliaksandr Valialkin
9e55db4a53 lib/promscrape: retry service discovery in a few seconds if it starts returning 0 targets 
This should reduce recovery time from temporary issues during service discovery
 2021-03-14 21:56:16 +02:00
Aliaksandr Valialkin
3b46ae1c05 lib/promscrape: remove duplicate target word in error message 2021-03-14 21:56:16 +02:00
Aliaksandr Valialkin
b0b28eeb93 lib/promscrape/discovery/kubernetes: further optimize kubernetes service discovery for the case with many scrape jobs 
Do not re-calculate labels per each scrape job - reuse them instead for scrape jobs with identical Kubernetes role
 2021-03-14 21:16:41 +02:00
Aliaksandr Valialkin
620f05cd2c lib/promscrape/discovery: fixes after 133b288681 
- Removed a deadlock in addAPIWatcher
- Do not create unused ScrapeWork objects
- Do not spend CPU resources on creating objectByKey map in addAPIWatcher

This work is based on https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1125
 2021-03-13 15:22:38 +02:00
Aliaksandr Valialkin
afa5b58c2d app/vminsert/opentsdbhttp: typo fix in vm_rows_inserted_total{type="opentsdbhttp"} metric: opentsdb-http -> opentsdbhttp 2021-03-12 15:59:31 +02:00
Aliaksandr Valialkin
b6dcb37fca app/vmselect/prometheus: do not include datapoints with timestamps matching t-d when returning results from /api/v1/query?query=m[d]&time=t as Prometheus does 2021-03-12 12:18:37 +02:00
Aliaksandr Valialkin
a12d2013d5 docs/CaseStudies.md: fix incorrect number of active time series for Zhihu 2021-03-12 11:45:52 +02:00
Aliaksandr Valialkin
54f902467d lib/proxy: there is no need in cloning tlsCfg, which has been created two lines above 2021-03-12 10:48:01 +02:00
Aliaksandr Valialkin
72a8fa484b lib/proxy: set proxy address in tls.Config.ServerName instead of the target address 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1116
 2021-03-12 10:41:25 +02:00
Aliaksandr Valialkin
60e0280a94 lib/promscrape: add ability to configure proxy options via proxy_tls_config, proxy_basic_auth, proxy_bearer_token and proxy_bearer_token_file 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1116
 2021-03-12 03:36:11 +02:00
Aliaksandr Valialkin
5c7ef14273 deployment/docker: update Go builder from 1.16.1 to 1.16.2 
See https://github.com/golang/go/issues?q=milestone%3AGo1.16.2+label%3ACherryPickApproved
 2021-03-12 01:53:42 +02:00
Aliaksandr Valialkin
b240d41ede docs/Articles.md: add https://www.sensedia.com/post/monitoring-with-prometheus-alertmanager 2021-03-12 01:23:22 +02:00
Aliaksandr Valialkin
b2732575f7 lib/storage: further tune filters sorting logic 2021-03-12 00:51:35 +02:00
Aliaksandr Valialkin
8fc29ffc67 lib/promscrape/discovery/kubernetes: use a single watcher per apiURL 
Previously multiple scrape jobs could create multiple watchers for the same apiURL. Now only a single watcher is used.
This should reduce load on Kubernetes API server when many scrape job configs use Kubernetes service discovery.
 2021-03-11 17:04:14 +02:00
Aliaksandr Valialkin
19af3b4f38 deployment/docker: update Go builder from 1.16.0 to 1.16.1 
See https://github.com/golang/go/issues?q=milestone%3AGo1.16.1+label%3ACherryPickApproved
 2021-03-11 17:04:14 +02:00
Aliaksandr Valialkin
8b8d4cbcfe lib/proxy: do not show inline basic auth passwords when logging errors related to proxy_url 2021-03-11 13:44:14 +02:00
Aliaksandr Valialkin
41f641b132 lib/promscrape/discovery/kubernetes: localize Bookmark parsing code 
This is a follow-up for e772d1c920
 2021-03-11 13:08:56 +02:00
Aliaksandr Valialkin
ccfe944ce7 docs/ExttendedPromQL.md: remove outdated doc 2021-03-11 12:42:57 +02:00
Brensted
03c8438099 Update BestPractices.md (#1123) 
update lists, hyperlinks fixed.
 2021-03-11 12:42:56 +02:00
Aliaksandr Valialkin
6c9cd3f7c1 lib/promscrape/discovery/kubernetes: reduce load on Kubernetes API server by using watch bookmarks 
This allows continuing object watch from the last bookbark instead of reloading all the objects
on watch errors or timeouts.

See https://kubernetes.io/docs/reference/using-api/api-concepts/#watch-bookmarks
 2021-03-10 15:08:40 +02:00
Aliaksandr Valialkin
bd8b7a88a7 lib/httpserver: export vm_available_memory_bytes and vm_available_cpu_cores metrics 
These metrics are useful for tracking the available memory and CPU cores for VictoriaMetrics apps.
 2021-03-10 12:08:26 +02:00
Ihor Borodin
933de6b9b1 Fixing examples of external.alert.source in documentation (#1120) 
* Fixing examples of external.alert.source in documentation
 2021-03-10 12:08:22 +02:00
Aliaksandr Valialkin
f05f7831b8 docs/BestPractices.md: initial add 2021-03-10 12:08:17 +02:00
Aliaksandr Valialkin
1042a4897b vendor: update github.com/VictoriaMetrics/fasthttp from v1.0.13 to v1.0.14 2021-03-09 21:34:00 +02:00
Aliaksandr Valialkin
9dfa71ad15 docs/CHANGELOG.md: mention about the bugfix from 787242d7b0 2021-03-09 20:56:48 +02:00
Aliaksandr Valialkin
e15f3f4f2a lib/proxy: pass proxy hostname in Host header of the CONNECT request 
This should resolve the following issue when connecting to tls proxy:

  cannot validate certificate for ... because it doesn't contain any IP SANs
 2021-03-09 20:41:18 +02:00
Aliaksandr Valialkin
9d8223eafb lib/proxy: set missing ServerName in TLS config for proxy_url. 
While at it, allow setting Proxy-Authorization for `proxy_url` via `basic_auth` and `bearer_token` configs.
 2021-03-09 19:01:14 +02:00
Nikolay
1310f84122 Changes tlsConfig init for proxy connections (#1121) 
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1116
 2021-03-09 19:01:13 +02:00
Aliaksandr Valialkin
0554430d7e lib/promscrape: apply sample_limit after metric relabeling is applied as Prometheus does 
See the description for `sample_limit` option from Prometheus docs:

Per-scrape limit on number of scraped samples that will be accepted.
If more than this number of samples are present after metric relabeling
the entire scrape will be treated as failed. 0 means no limit.

https://prometheus.io/docs/prometheus/latest/configuration/configuration/#scrape_config
 2021-03-09 15:52:41 +02:00
Aliaksandr Valialkin
7b66c8cbf8 lib/promscrape/discovery/kubernetes: remove too verbose logs about starting and stopping the watchers 
Log the number of objects loaded per each watch url

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1113
 2021-03-09 15:07:12 +02:00
Aliaksandr Valialkin
058aa0de75 docs/CHANGELOG.md: mention about improved query performance at 18fe0ff14b 2021-03-09 13:12:18 +02:00
Aliaksandr Valialkin
942890b1bb app/vmselect/promql: follow up for 433fff0006 2021-03-09 12:54:23 +02:00
Nikolay
28e450cd7c duplicate timeseries fix for prometheus_buckets function (#1119) 
* try fix for prometheus_buckets

* merge possible end of the bucket collision
 2021-03-09 12:54:21 +02:00
Aliaksandr Valialkin
75d49ee58a vendor: make vendor-update 2021-03-09 12:03:55 +02:00
Aliaksandr Valialkin
2c5ac00231 vendor: update github.com/VictoriaMetrics/fasthttp from 1.0.12 to 1.0.13 
This should fix a bug in vmagent with high CPU usage during failed scrapes with small `scrape_timeout`.
 2021-03-09 11:44:44 +02:00
John Belmonte
edf39aa225 spelling fix: adjacent (#1115) 2021-03-09 09:19:16 +02:00
Aliaksandr Valialkin
502fab797a lib/promscrape: add scrape_offset option to scrape_config 
This option can be used for specifying the particular offset per each scrape interval for target scraping
 2021-03-08 11:59:32 +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
c04505e585 lib/promscrape/discovery/kubernetes: reduce memory usage further when big number of scrape jobs are configured for the same kubernetes_sd_config role 
Serialize reloading per-role objects, so they don't occupy too much memory when objects for many scrape jobs are simultaneously refreshed.
Do not reload per-role objects if they were already refreshed by concurrent goroutines. This should reduce load on Kubernetes API server
when big number of scrape jobs are configured for the same Kubernetes role.

This is a follow-up for 17b87725ed

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1113
 2021-03-07 20:03:22 +02:00
Aliaksandr Valialkin
175466bb41 lib/decimal: prevent exponent overflow when processing values close to zero 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1114
 2021-03-05 18:53:41 +02:00
Aliaksandr Valialkin
26cb6f8861 app/vmauth: allow using regexps in url_map paths 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1112
 2021-03-05 18:53:40 +02:00
Aliaksandr Valialkin
5807ff57f3 lib/promscrape/discovery/kubernetes: reduce memory usage when Kubernetes service discovery is configured on a big number of scrape jobs 
Previously vmagent was creating a separate Kubernetes object cache per each scrape job.
This could result in increased memory usage when monitoring a Kubernetes cluster with big number of objects (pods / nodes / services, etc.)
as seen at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1113

Now it uses a shared map of scrape objects across multiple scrape jobs.
 2021-03-05 17:32:33 +02:00
Aliaksandr Valialkin
92ddb8f197 lib/promscrape/discovery/kubernetes: move apiWatcher code to a separate file 2021-03-05 17:32:32 +02:00
Aliaksandr Valialkin
1c3c844b38 deployment/docker: update base Docker image from alpine:3.13.1 to alpine:3.13.2 
See https://www.alpinelinux.org/posts/Alpine-3.13.2-released.html
 2021-03-05 10:35:33 +02:00