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469 commits

Author SHA1 Message Date
Aliaksandr Valialkin
c857e05604 lib/promscrape: add missing whitespace at /targets page before up word 2021-07-26 12:23:06 +03:00
Aliaksandr Valialkin
6fc3696260 lib/promscrape/discovery/consul: use case-insensitive comparison for service names 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1424
 2021-07-02 14:49:22 +03:00
Aliaksandr Valialkin
1c12c0f79c 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 15:43:43 +03:00
Nikolay
6bd2309449 fixes /targets button style (#1423) 
* fixes /targets button style
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1422

* updates boostrap version
 2021-07-01 11:52:47 +03:00
Aliaksandr Valialkin
2edfea8c36 lib/promscrape/discovery/docker: fix golint warning: struct field Id should be ID 2021-06-29 13:11:33 +03:00
Aliaksandr Valialkin
0c4c630839 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 21:27:22 +03:00
Aliaksandr Valialkin
97d1ccfc8e 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 13:22:16 +03:00
Aliaksandr Valialkin
4461e20e7d lib/promscrape: consistently sort service discovery routines 
This should simplify further maintenance of the code
 2021-06-25 13:22:16 +03:00
Lu Jiajing
12b4cbb68f 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 13:22:16 +03:00
Nikolay
501429c3ff adds missing MustStop call to do and http sd (#1404) 2021-06-25 11:43:32 +03:00
Aliaksandr Valialkin
f10fa0d1d7 lib/promscrape/discovery/consul: properly pass namespace to Consul watcher 
Follow-up for 58a2989fe7
 2021-06-22 17:43:20 +03:00
Aliaksandr Valialkin
4adf6c9766 lib/promscrape/discovery/http: follow up after e307bbb29a 2021-06-22 13:42:10 +03:00
Nikolay
e03a3d3a36 adds http_sd (#1399) 
* adds http_sd

* adds X-Prometheus-Refresh-Interval-Seconds header

* Update lib/promscrape/discovery/http/api.go

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2021-06-22 13:42:09 +03:00
Aliaksandr Valialkin
3ab3902f17 lib/promscrape/discovery: support generic auth configs in Consul service discovery in the same way as Prometheus 2.28 does 2021-06-22 13:18:51 +03:00
Nikolay
827a2396d2 adds consul enterprise namespace support (#1400) 
* adds consul enterprise namespace support

* Update lib/promscrape/discovery/consul/consul.go

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2021-06-22 12:56:11 +03:00
Aliaksandr Valialkin
f9069ba32a lib/promscrape: show jobs with empty scrape targets on /targets page 2021-06-18 10:54:12 +03:00
Nikolay
9ea1dca3dd fixes DO service discovery labels (#1389) 
adds test for digitalocean sd
 2021-06-17 17:21:10 +03:00
Aliaksandr Valialkin
5f91a701fa lib/promscrape: show the number of samples collected during the last scrape at /targets and /api/v1/targets pages 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1377
 2021-06-14 14:04:35 +03:00
Nikolay
e42da47608 adds digital ocean sd (#1376) 
* adds digital ocean sd config

* adds digital ocean sd
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1367

* typo fix
 2021-06-14 13:19:29 +03:00
Aliaksandr Valialkin
df057177a0 lib/promscrape: increase the duration for reading the full response in stream parsing mode 
Increase the duration from 10x to 30x of the configured `scrape_interval'.

This should help https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1365
 2021-06-14 12:29:46 +03:00
Aliaksandr Valialkin
269e35d676 app/{vmagent,vminsert}: follow-up after 2fe045e2a4 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1343
 2021-06-04 20:33:22 +03:00
jelmd
d8b46908db new feature: debug relabeling (#1344) 
* new feature: relabel logging

Use scrape_configs[x].relabel_debug = true to log metric names inkl.
labels before and after relabeling. After relabeling related metrics
get dropped, i.e. not submitted to servers.

* vminsert wants relabel logging, too.
 2021-06-04 20:33:21 +03:00
Hason Chan
439c2ed510 fix eureka_sd_configs HTTPClientConfig incorrect parsing (#1350) 2021-06-04 11:56:06 +03:00
Aliaksandr Valialkin
0b9f0de0a1 lib/promscrape: fix tests after f0c21b6300 2021-05-28 01:33:28 +03:00
Aliaksandr Valialkin
97de72054e docs: document f0c21b6300 2021-05-27 15:04:13 +03:00
faceair
b801b299f0 lib/promscrape: apply body size & sample limit to stream parse (#1331) 
* lib/promscrape: apply body size limit to stream parse

Signed-off-by: faceair <git@faceair.me>

* lib/promscrape: apply sample limit to stream parse

Signed-off-by: faceair <git@faceair.me>
 2021-05-27 15:04:11 +03:00
Nikolay
2780d6dbcd basic OAuth2 support for remoteWrite and scrape targets (#1316) 
* adds OAuth2 support for remoteWrite and scrapping

* adds tests
changes init
 2021-05-22 18:02:01 +03:00
Aliaksandr Valialkin
d77db9d813 all: do not skip SIGHUP signal during service initialization 
This can lead to stale or incomplete configs like in the https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1240
 2021-05-21 16:38:20 +03:00
Aliaksandr Valialkin
110a888e39 lib/promscrape/discovery/kubernetes: make golangci-lint happy by removing empty branches 2021-05-20 12:00:17 +03:00
Aliaksandr Valialkin
9d97f44772 lib/promscrape/discovery/kubernetes: reload objects on object parse error 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1240
 2021-05-18 23:27:24 +03:00
Aliaksandr Valialkin
c507faec0b lib/promscrape/discovery/kubernetes: simplify the reload logic for urlWatcher.objectsByKey 2021-05-18 15:41:51 +03:00
Aliaksandr Valialkin
0f54c0121b lib/promscrape/discovery/kubernetes: properly update vm_promscrape_discovery_kubernetes_scrape_works metric 
Previously it wasn't descreased during config update.
 2021-05-18 15:41:51 +03:00
Aliaksandr Valialkin
9f62d348db lib/promscrape/discovery/kubernetes: log errors and stop service discovery when unexpected updates are received from Kubernetes API server 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1240
 2021-05-18 15:41:51 +03:00
Aliaksandr Valialkin
8764b0ae21 lib/promscrape/discovery/kubernetes: key ScrapeWork objects by urlWatcher instead of namespace 
This makes the code less fragile if urlWatcher would depend on additional to namepsace properties.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1170
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1240
 2021-05-17 23:49:48 +03:00
Aliaksandr Valialkin
e08287f017 lib/promscrape: reload auth tokens from files every second 
Previously auth tokens were loaded at startup and couldn't be updated without vmagent restart.
Now there is no need in vmagent restart.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1297
 2021-05-14 20:03:35 +03:00
Aliaksandr Valialkin
a6cb4f10a7 app/{vmalert,vmauth}: explicitly set MaxIdleConnsPerHost in net/http.Client.Transport 
By default MaxIdleConnsPerHost is set to 2. This limits the possibility to re-use http keep-alive connections.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1300
 2021-05-14 18:13:34 +03:00
Aliaksandr Valialkin
e3f61d540b lib/promscrape: limit scrape_timeout by scrape_interval like Prometheus does 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1281
 2021-05-13 16:10:42 +03:00
匠心零度
d5285ecaf0 fix vagent imbalance problem (#1292) 
/path/to/vmagent -promscrape.cluster.membersCount=3 -promscrape.cluster.replicationFactor=2 -promscrape.cluster.memberNum=0 -promscrape.config=/path/to/config.yml ...
/path/to/vmagent -promscrape.cluster.membersCount=3 -promscrape.cluster.replicationFactor=2 -promscrape.cluster.memberNum=1 -promscrape.config=/path/to/config.yml ...
/path/to/vmagent -promscrape.cluster.membersCount=3 -promscrape.cluster.replicationFactor=2 -promscrape.cluster.memberNum=2 -promscrape.config=/path/to/config.yml ...

Co-authored-by: lirenzuo <lirenzuo@shein.com>
 2021-05-13 11:19:30 +03:00
Aliaksandr Valialkin
f13585dc5d vendor: update github.com/VictoriaMetrics/fasthttp from v1.0.14 to v1.0.15 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1289
 2021-05-13 10:47:09 +03:00
Aliaksandr Valialkin
d13906bf1f lib/promscrape: exponentially increase retry interval on unsuccesful requests to scrape targets or to service discovery services 
This should reduce CPU load at vmagent and at remote side when the remote side doesn't accept HTTP requests.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1289
 2021-05-13 10:47:07 +03:00
Aliaksandr Valialkin
027607db3e lib/promscrape/discovery/kubernetes: refresh endpoints and endpointslices scrape targets every 5 seconds, since they may depend on changed service and pod objects 
This should make endpoints and endpointslices scrape targets eventually consistent with the maximum delay of 5 seconds after the related service or pod object changes.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1240
 2021-05-12 14:12:43 +03:00
Aliaksandr Valialkin
e6c19cb09d lib/promscrape/discovery/kubernetes: start watchers for pods and services before starting watchers for endpoints 
This should eliminate possible race when an update on endpoints depends on pods and/or services, which are missing in the cache yet.
This could result in missing targets based on endpoints or endpointslices.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1240
 2021-05-05 12:23:16 +03:00
Aliaksandr Valialkin
421a92983a lib/promscrape/discovery/kubernetes: remove a mutex at urlWatcher - use groupWatcher mutex for accessing all the urlWatcher children 
This simplifies the code a bit and reduces the probability of improper mutex handling and deadlocks.
 2021-04-29 10:17:45 +03:00
Nikolay
535b3ff618 vmagent kubernetes_sd tests (#1253) 
* first part of tests for kubernetes sd

* makes linter happy

* added more test cases

* adds pub/sub for tests
 2021-04-29 10:17:45 +03:00
Aliaksandr Valialkin
b3da457629 lib/promscrape/discovery/kubernetes: fix a deadlock introduced in eddba29664 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1240

Thanks to @f41gh7 for providing the initial idea for deadlock fix at https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1248
 2021-04-27 14:59:56 +03:00
Aliaksandr Valialkin
320983f650 lib/promscrape: apply scrape_timeout on receiving the first response byte for stream_parse: true scrape targets 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1017#issuecomment-767235047
 2021-04-23 22:05:00 +03:00
Aliaksandr Valialkin
34321e5f8d lib/promscrape/discovery/kubernetes: refresh role: endpoints targets on service object removal as Prometheus does 
This is a follow-up for ae37cfd528

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1240
 2021-04-23 20:27:29 +03:00
Aliaksandr Valialkin
db27dbab5e lib/promscrape/discovery/kubernetes: refresh endpoints and endpointslices targets on service object update like Prometheus does 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1240
 2021-04-23 20:12:22 +03:00
Aliaksandr Valialkin
6dc5d3b357 all: rename https://victoriametrics.github.io to https://docs.victoriametrics.com 2021-04-20 20:20:01 +03:00
Aliaksandr Valialkin
3b1f0cb3f6 lib/promscrape: create a single swosFunc per scrape_config 2021-04-08 09:31:38 +03:00
Aliaksandr Valialkin
276dbc2133 lib/promscrape: do not spend CPU time on constructing scrapeWork key if clustering is disabled 2021-04-07 21:55:06 +03:00
Aliaksandr Valialkin
02b83e0957 lib/promscrape/discovery: remove superflouos check in registerPendingAPIWatchers 
The check `_, ok := uw.aws[aw]; !ok` isn't needed, since aw cannot exist in uw.aws
because of the check inside subscribeAPIWatcher
 2021-04-07 13:10:04 +03:00
Aliaksandr Valialkin
db56ee0e28 lib/promscrape/discovery/kubernetes: register pending apiWatchers in uw.aws 2021-04-06 11:11:53 +03:00
Aliaksandr Valialkin
edd66b7e82 lib/promscrape/discovery/kubernetes: remove superflouos mustStart and mustStop functions 2021-04-05 22:43:49 +03:00
Lu Jiajing
4ee6def68b fix access to nil *url.URL (#1180) 
* fix access to nil *url.URL

Signed-off-by: Megrez Lu <lujiajing1126@gmail.com>

* Update lib/promscrape/discovery/kubernetes/api_watcher.go

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2021-04-05 22:26:43 +03:00
Aliaksandr Valialkin
7eca60694e lib/promscrape/discovery/kubernetes: reduce CPU time spent on registering big number of Kubernetes objects shared among big number of scrape jobs 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1182
 2021-04-05 22:05:02 +03:00
Aliaksandr Valialkin
9da2ef3d8f lib/promscrape/discovery/kubernetes: load objects missing in local cache from api seriver in getObjectByRole() 
This should fix possible race for `role: endpoints` and `role: endpointslices` service discovery,
when the referred `pod` and `service` objects aren't propagated to urlWatcher cache yet.

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1182#issuecomment-813353359 for details.
 2021-04-05 20:31:22 +03:00
Aliaksandr Valialkin
fe084fdd33 lib/promscrape/discovery/kubernetes: synchronously load Kubernetes objects on first access 
Remove async registration of apiWatchers, since it breaks discovering `role: endpoints` and `role: endpointslices` targets,
which depend on pod and service objects.

There is no need in reloading `endpoints` and `endpointslices` targets if the referenced `pod` or `service` objects change,
since in this case the corresponding `endpoints` and `endpointslices` objects should also change because they contain
ResourceVersion of the referenced `pod` or `service` objects, which is modified on object update.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1182
 2021-04-05 14:37:07 +03:00
Aliaksandr Valialkin
90da332ea0 lib/promscrape: pass X-Prometheus-Scrape-Timeout-Seconds header to scrape targets as Prometheus does 2021-04-05 12:15:14 +03:00
Aliaksandr Valialkin
dd19fab7c9 lib/promscrape: properly send full url in GET request via simple HTTP proxy 
This is a follow-up for a0ae0f86666a75ec57b45eab2429da7ab4a7b250

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1179
 2021-04-04 01:20:43 +03:00
Aliaksandr Valialkin
ab9e1eb41f lib/promscrape: support for simple HTTP proxies without CONNECT method support such as https://github.com/prometheus-community/PushProx 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1179
 2021-04-04 00:40:58 +03:00
Aliaksandr Valialkin
27d8a5d2c0 lib/promscrape: add tests for authorization config, which has been added in df148f48b7 2021-04-03 22:14:03 +03:00
Aliaksandr Valialkin
87700f1259 lib/promscrape: add support for authorization config in -promscrape.config as Prometheus 2.26 does 
See https://github.com/prometheus/prometheus/pull/8512
 2021-04-02 21:20:37 +03:00
Aliaksandr Valialkin
2825a1e86d lib/promscrape: add follow_redirect option to scrape_configs section like Prometheus does 
See https://github.com/prometheus/prometheus/pull/8546
 2021-04-02 21:20:37 +03:00
Aliaksandr Valialkin
245eba8896 lib/promscrape/discovery/kubernetes: properly track objects with the same names in multiple namespaces 
This is a follow-up for 12e4785fe8

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1170
 2021-04-02 14:46:34 +03:00
Aliaksandr Valialkin
eee860f83d lib/promscrape/discovery/kubernetes: properly discover targets in multiple namespaces 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1170
 2021-04-02 14:29:24 +03:00
Nikolay
00157f3ec6 Adds aws ECS credentials support (#1175) 2021-04-02 13:11:03 +03:00
Aliaksandr Valialkin
7d87d42a91 lib/promscrape/discovery/kubernetes: typo fix in error message 2021-03-26 12:46:33 +02:00
Aliaksandr Valialkin
a920e71809 lib/promscrape/discovery/kubernetes: properly handle too old resource version error message from Kubernetes watch API 2021-03-26 12:28:35 +02:00
Aliaksandr Valialkin
6b1f807418 app/vmagent: add -promscrape.consul.waitTime command-line flag for configuring Consul service discovery wait time 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1144
 2021-03-23 19:34:12 +02:00
Nikolay
19a40faf8e changes consul_service label value (#1143) 
according to prometheus discovery.
 It should mitigate issue with case sensetive services
https://github.com/hashicorp/consul/issues/5707
 2021-03-23 15:37:06 +02:00
Aliaksandr Valialkin
5e77a939c2 all: make go vet happy 2021-03-17 00:48:44 +02:00
Aliaksandr Valialkin
b997f4a418 all: make golangci-lint happy after the commit 6378205415 2021-03-17 00:24:31 +02:00
Aliaksandr Valialkin
8005ba26b9 lib/netutil: enable IPv6 UDP listening if -enableTCP6 command-line flag is passed to VictoriaMetrics 
This is a follow-up for 18cfc4be7b

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1131
 2021-03-17 00:19:30 +02:00
Aliaksandr Valialkin
e2717d84c0 all: various fixes in command-line flag descriptions 2021-03-15 22:03:49 +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
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
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
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
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
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
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
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
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
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
02c0959380 lib/promscrape: make cluster membership calculations consistent across 32-bit and 64-bit architectures 2021-03-05 09:06:08 +02:00
Aliaksandr Valialkin
133fb9fc00 lib/promscrape: add -promscrape.cluster.replicationFactor command-line flag for replicating scrape targets among vmagent instances in the cluster 2021-03-04 10:21:27 +02:00
Aliaksandr Valialkin
bae7a1b47a lib/promscrape/discovery/kubernetes: fix tests after e154f4a644 2021-03-03 22:42:04 +02:00
Nikolay
7d92ef3acd Fix ingress discovery api (#1110) 2021-03-03 10:45:50 +02:00
Aliaksandr Valialkin
25f453ce1a lib/promscrape/discovery/kubernetes: properly check for nil pointer inside interface 
See https://mangatmodi.medium.com/go-check-nil-interface-the-right-way-d142776edef1

This fixes a panic when the ScrapeWork is filtered out in swcFunc.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1108
 2021-03-03 10:42:54 +02:00
Aliaksandr Valialkin
fea27b9845 lib/promscrape: go fmt 2021-03-02 21:20:23 +02:00
Aliaksandr Valialkin
3fbe2bf1c8 lib/promscrape: pre-allocate space for a map in mergeLabels 
This should reduce the number of memory allocations when discovering big number of targets
 2021-03-02 18:42:44 +02:00
Aliaksandr Valialkin
ac5c47a9f5 lib/promscrape/discovery: properly track vm_promscrape_discovery_kubernetes_objects_removed_total metric 2021-03-02 18:33:29 +02:00
Aliaksandr Valialkin
f9c1fe3852 lib/promscrape/discovery/kubernetes: cache ScrapeWork objects as soon as the corresponding k8s objects are changed 
This should reduce CPU usage and memory usage when Kubernetes contains tens of thousands of objects
 2021-03-02 16:44:19 +02:00
Aliaksandr Valialkin
f686174329 lib/promscrape/discovery/ec2: follow-up after f6114345de 2021-03-02 13:47:35 +02:00
Nikolay
fd8ca7df50 Adds webIndentity token for aws (#1099) 
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1080
 2021-03-02 13:47:34 +02:00
Aliaksandr Valialkin
b89a4fac2f lib/promscrape/discovery/kubernetes: deflake tests; a follow-up for 05fb08713c 2021-03-01 14:31:44 +02:00
Aliaksandr Valialkin
c3bf72992f lib/promscrape: explicitly stop and cleanup service discovery routines when new config is read from -promscrape.config 
This should reduce memory usage when `-promscrape.config` file frequently changes
 2021-03-01 14:15:16 +02:00
Aliaksandr Valialkin
8af9370bf2 lib/promscrape: use target arg in ScrapeWork cache 2021-03-01 12:31:11 +02:00
Aliaksandr Valialkin
5328506c3e lib/promscrape: typo fix, which prevented from caching ScrapeWork entries 2021-03-01 12:13:13 +02:00
Aliaksandr Valialkin
d5058caccc lib/promscrape: add vm_promscrape_scrapework_cache_* metrics for tracking ScrapeWork cache effectiveness 2021-03-01 12:05:58 +02:00
Aliaksandr Valialkin
109bfaadad lib/promscrape: reduce CPU usage an memory allocations when constructing scrapeWorkKey 2021-02-28 22:30:36 +02:00
Aliaksandr Valialkin
9a2bf65134 lib/promscrape: add ability to spread scrape targets among multiple vmagent instances 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1084
 2021-02-28 18:40:42 +02:00
Aliaksandr Valialkin
3e44d9947e lib/promscrape/discovery/kubernetes: properly account the number of objects when watcher is stopped 
A follow-up for b21b110b7a
 2021-02-28 17:06:49 +02:00
Aliaksandr Valialkin
0ef7a94056 lib/promscrape/discovery/kubernetes: add vm_promscrape_discovery_kubernetes_* metrics for monitoring internal state of k8s service discovery 2021-02-28 16:58:45 +02:00
Aliaksandr Valialkin
f52bdbe2a3 lib/promscrape/discovery/kubernetes: remove resourceVersionMatch=NotOlderThan query arg when watching for k8s object changes, since it cannot be used when watch=1 query arg is passed 2021-02-28 16:08:43 +02:00
Aliaksandr Valialkin
6f8866a40a lib/promscrape: fix possible deadlock in parallel execution of target relabeling 2021-02-28 16:05:32 +02:00
Aliaksandr Valialkin
5c9e657808 lib/promscrape/discovery/kubernetes: fix deadlock in startWatcherForURL 
reloadObjects must be called without holding aw.mu lock
 2021-02-28 15:25:33 +02:00
Aliaksandr Valialkin
e77f2f8630 lib/promscrape/discovery/kubernetes: typo fix after 241ffd1f3b 2021-02-28 15:15:27 +02:00
Aliaksandr Valialkin
82441537ff lib/promscrape/discovery/kubernetes: pre-populate labelsByKey in reloadObject() 2021-02-28 15:09:43 +02:00
Aliaksandr Valialkin
e003453941 lib/promscrape/discovery/kubernetes: compare sorted sets of labels in tests 
This should deflake tests where the order of labels isn't stable
 2021-02-28 14:12:32 +02:00
Aliaksandr Valialkin
6a21ef87b7 lib/promscrape: add missing startWatchersForRole() call at the beginning of apiWatcher.getLabelsForRole 2021-02-28 14:00:00 +02:00
Aliaksandr Valialkin
6d0e7fb8b0 lib/promscrape/discovery/kubernetes: reload k8s resources on every error 
This is needed for obtaining fresh resourceVersion
 2021-02-27 01:46:59 +02:00
Aliaksandr Valialkin
44975e28fe lib/promscrape: yet another typo fix after ed8441ec52 2021-02-26 23:36:34 +02:00
Aliaksandr Valialkin
50e74c439c lib/promscrape: typo fix after ed8441ec52 2021-02-26 23:04:40 +02:00
Aliaksandr Valialkin
fa3ce450fb lib/promscrape: cache ScrapeWork 
This should reduce the time needed for updating big number of scrape targets.
 2021-02-26 21:43:41 +02:00
Aliaksandr Valialkin
efcdf613c2 lib/promscrape/discovery/kubernetes: cache target labels 
This should reduce CPU usage on repeated SDConfig.GetLabels() calls.
 2021-02-26 20:24:29 +02:00
Aliaksandr Valialkin
22822feea3 lib/promscrape/discovery/kubernetes: errcheck fix 2021-02-26 19:09:12 +02:00
Aliaksandr Valialkin
dc8c045378 lib/promscrape: cleanup after 9b2246c29b 
Main points:

* Revert changes outside lib/promscrape/discovery/kuberntes . These changes can be applied later in a separate commit
* Minimize changes in lib/promscrape/discovery/kubernetes compared to a93e644001
* Corner case fixes.
 2021-02-26 19:09:12 +02:00
Nikolay
cf9262b01f vmagent kubernetes watch stream discovery. (#1082) 
* started work on sd for k8s

* continue work on watch sd

* fixes

* continue work

* continue work on sd k8s

* disable gzip

* fixes typos

* log errror

* minor fix

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2021-02-26 19:09:12 +02:00
Aliaksandr Valialkin
4cfac70cde lib/promscrape: remove duplicate code a bit 2021-02-26 15:54:07 +02:00
Aliaksandr Valialkin
55eb983193 lib/promscrape: reduce processing time for big number of discovered targets by processing them in parallel 2021-02-26 12:48:48 +02:00
Aliaksandr Valialkin
197ecca426 lib/promrelabel: add more optimizations for relabeling for common cases 2021-02-22 16:36:54 +02:00
Aliaksandr Valialkin
8b87398333 lib/promscrape: export vm_promscrape_target_relabel_duration_seconds metric 2021-02-21 23:21:35 +02:00
Aliaksandr Valialkin
f09b46b2b1 lib/promscrape: typo fix after the commit f26162ec99 2021-02-19 00:34:18 +02:00
Aliaksandr Valialkin
502d0e2524 lib/promscrape: add scrape_align_interval config option into scrape config 
This option allows aligning scrapes to a particular intervals.
 2021-02-18 23:53:04 +02:00
Aliaksandr Valialkin
fccb481de2 lib/promscrape/discovery/kubernetes: add __meta_kubernetes_endpoints_label_* and __meta_kuberntes_endpoints_annotation_* labels to role: endpoints 
This syncs kubernetes SD with Prometheus 2.25
See 617c56f55a
 2021-02-15 02:51:36 +02:00
Aliaksandr Valialkin
18c2075159 lib/promscrape: remove vm_promscrape_scrapes_failed_per_url_total and vm_promscrape_scrapes_skipped_by_sample_limit_per_url_total metrics 
These metrics may result in big number of time series when vmagent scrapes thousands of targets and these targets constantly changes.

* It is better using `up == 0` query for determining failing targets.
* It is better using the following query for determining targets with exceeded limit on the number of metrics:

  scrape_samples_scraped > 0 if up == 0
 2021-02-12 05:23:27 +02:00
Nikolay
6fc2a8e544 fixes dockerswarm (#1053) 
fixes improper usage of host network services
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1028
 2021-02-04 15:57:41 +02:00
Aliaksandr Valialkin
755b0998ce lib/promscrape: add vm_promscrape_service_discovery_duration_seconds metric 2021-02-02 16:16:51 +02:00
Aliaksandr Valialkin
4c59dbc127 lib/promscrape: add vm_promscrape_scrape_retries_total, vm_promscrape_discovery_retries_total and vm_promscrape_discovery_requests_total metrics 2021-02-01 20:06:16 +02:00
Aliaksandr Valialkin
ffec5131ae lib/promscrape: export vm_promscrape_scrapes_failed_per_url_total and vm_promscrape_scrapes_skipped_by_sample_limit_per_url_total metrics 
These metrics could be useful for determining imporperly working scrape targets.
Note that these metrics are exported only for failing scrape targets. They aren't exposed for normally working targets.
 2021-01-27 00:40:39 +02:00
Aliaksandr Valialkin
4b324da947 all: consistently use timers from timerpool 2021-01-27 00:40:39 +02:00
Aliaksandr Valialkin
fdced59278 lib/promscrape: retry scrape and service discovery requests when the remote server closes http keep-alive connection 2021-01-22 13:22:59 +02:00
Nikolay
9f0a4fd00e Fixes error handling for promscrape.streamParse (#1009) 
properly return error if client cannot read data,
properly suppress scraper errors
 2021-01-12 13:35:09 +02:00
Aliaksandr Valialkin
c97681b45c lib/promscrape: properly show scrape duration on /targets page 
Previously it has been shown as 0.000s for any scrape duration.
 2021-01-11 21:15:50 +02:00
Nikolay
dd2f815204 fixes kubernetes_sd (#983) 
* fixes kubernetes_sd,
adds missing service metadata for pod ports without endpoint
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/982

* fix test
 2020-12-24 11:34:12 +02:00
Aliaksandr Valialkin
367fc17933 lib/promscrape: code prettifying for 8dd03ecf19 2020-12-24 10:57:20 +02:00
Nikolay
b00f7816e2 adds proxy_url support, (#980) 
* adds proxy_url support,
adds proxy_url to the dockerswarm, eureka, kubernetes and consul service discovery,
adds proxy_url to the scrape_config for targets scrapping,
http based proxy is supported atm,
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/503

* fixes imports
 2020-12-24 10:57:19 +02:00
Aliaksandr Valialkin
1ee5a234dc lib/promscrape: remove ID field from ScrapeWork struct. Use a pointer to ScrapeWork as a key in targetStatusMap 
This simplifies the code a bit.
 2020-12-17 14:31:55 +02:00
Aliaksandr Valialkin
c4ec977934 lib/promscrape: properly remove deleted target from /targets page 
Previously `sw` variable wasn't captured correctly by the started goroutine.
 2020-12-15 20:58:37 +02:00
Aliaksandr Valialkin
eddc2bd017 lib/promscrape: properly handle scrape errors when stream parsing is enabled 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/967
 2020-12-15 14:10:52 +02:00
Aliaksandr Valialkin
104aac170e lib/promscrape: add bootstrap styles to /targets html page 2020-12-15 12:38:29 +02:00
Aliaksandr Valialkin
ad961fe1f1 lib/promscrape: formatting fixes for /tarets page 2020-12-15 11:59:28 +02:00
Aliaksandr Valialkin
38145cfbb8 lib/promscrape: formatting fixes for /targets page 2020-12-15 11:27:22 +02:00
Aliaksandr Valialkin
b904ae3722 lib/promscrape: add missing whitespace between duration and ago word at /targets page 2020-12-14 14:20:30 +02:00
Aliaksandr Valialkin
a2eb451de4 app/{vmagent,vminsert}: follow-up for ce8c2dd1f1: return /targets page in HTML when requested via web browser 2020-12-14 14:13:01 +02:00
Nikolay
324e3aa1a5 Changes targets api (#961) 
* changes /targets api
adds html response if requester accepts text/html,
adds quick template for /targets api,
fixes pathPrefix for / requests

* changes namings

* renamed targets file

* Update app/victoria-metrics/main.go

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>

* adds trimspace to qtpl,
moves content-type for targets response closer to writer

* fixes bug with prefix

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2020-12-14 14:13:00 +02:00
Aliaksandr Valialkin
c80d38f00c lib/promscrape/discovery/consul: reduce load on Consul API server by increasing timeout for blocking requests from 50 seconds to 9 minutes 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/574
 2020-12-11 17:26:34 +02:00
Aliaksandr Valialkin
a84467958a lib/promscrape/discovery/consul: properly pass Datacenter filter to Consul API server 
Previously it has been passed as `sdc` query arg, while it should be passed as `dc` query arg.
See https://www.consul.io/api-docs/health#list-nodes-for-service for details.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/574#issuecomment-740454170
 2020-12-08 21:53:23 +02:00
Aliaksandr Valialkin
38188e1d6b lib/promscrape: store ScrapeWork items by pointer in the slice returned from get*ScrapeWork() 
This should prevent from possible 'memory leaks' when a pointer to ScrapeWork item stored in the slice
could prevent from releasing memory occupied by all the ScrapeWork items stored in the slice when they
are no longer used.

See the related commit e205975716 and the related issue https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825
 2020-12-08 17:55:21 +02:00
Aliaksandr Valialkin
d5faad0240 lib/promscrape: re-use strings for labels stored in ScrapeWork 
This should reduce memory usage when working with big number of scrape targets.
 2020-12-08 12:23:44 +02:00
Aliaksandr Valialkin
06091cfdf8 lib/promscrape: export vm_promscrape_scrapers_{started|stopped}_total metrics for monitoring target churn rate 2020-12-08 11:58:44 +02:00
Aliaksandr Valialkin
affcee199c lib/promscrape: store targetStatus entries in targetStatusMap by pointer instead of by value 
This guarantees that GC frees memory occupied by targetStatus after it is unregistered from targetStatusMap.
 2020-12-08 11:52:20 +02:00
Aliaksandr Valialkin
56a0b058c1 lib/promscrape: export vm_promscrape_active_scrapers{type="<sd_type>"} metric for tracking the number of active scrapers per each service discovery type 2020-12-08 01:54:44 +02:00
Aliaksandr Valialkin
b5b32c65b0 lib/promscrape: do not enable strict config parsing when -promscrape.config.dryRun command-line flag is passed 
Strict parsing for -promscrape.config can be enabled by passing `-promscrape.config.strictParse` command-line flag.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/944
 2020-12-07 13:18:16 +02:00
Aliaksandr Valialkin
9d79d11a6c lib/promscrape: mention in scrape error message that scrape errors can be disabled by -promscrape.suppressScrapeErrors command-line flag 2020-12-06 23:27:07 +02:00
Aliaksandr Valialkin
f6d32f99d7 lib/promscrape: clarify error message on failed connection to scrape target when -enableTCP6 command-line flag isn't set 2020-12-06 13:19:32 +02:00
Aliaksandr Valialkin
1430bbcf33 lib/promscrape/discoveryutils: remove limit on the number of concurrently running blocking queries 
Too low limit could result in unexpected errors when performing big number of blocking queries.
 2020-12-05 12:15:47 +02:00
Aliaksandr Valialkin
96190f9d45 lib/promscrape/discovery/consul: log the time needed for stoppig Consul service watcher 2020-12-03 20:14:48 +02:00
Aliaksandr Valialkin
4e4a93c586 lib/promscrape/discovery/consul: make sure that block response contains X-Consul-Index header 2020-12-03 20:05:54 +02:00
Aliaksandr Valialkin
7a889f6850 lib/promscrape: code cleanup after c6dee6c52d 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/574
 2020-12-03 19:52:09 +02:00
Nikolay
0b302d33cb Changes consul discovery api (#921) 
* adds consul watch api,
it must reduce load on consul service with blocking wait requests,
changed discoveryClient api with fetchResponseMeta callback.

* small fix

* fix after master merge

* adds watch client at discovery utils

* fixes consul watcher,
changes namings,
fixes data race

* small typo fix

* sanity fix

* fix naming and service node update
 2020-12-03 19:52:08 +02:00
Aliaksandr Valialkin
2385ac11c0 lib/promscrape: fix failing tests after a906b3862f 2020-11-29 01:25:49 +02:00
Aliaksandr Valialkin
3bb9bf33d6 lib/promscrape: reduce memory allocations when unpacking gzipped responses received from scrape targets 2020-11-26 18:32:16 +02:00
Aliaksandr Valialkin
af667c59c1 all: typo fix: thouthand->thousand 2020-11-26 13:34:05 +02:00
Aliaksandr Valialkin
3dd2282ed9 lib/promscrape: release http response non-200 status code 2020-11-26 13:25:25 +02:00
Aliaksandr Valialkin
3f52e59efe app/{vmagent,victoria-metrics}: add -dryRun option and make more clear handling for -promscrape.config.dryRun 2020-11-25 23:01:39 +02:00
Aliaksandr Valialkin
8b82f9d8b8 lib/promscrape: expose __meta_ec2_ipv6_addresses label for ec2_sd_config like Prometheus will do in the next release 2020-11-23 16:57:03 +02:00
Aliaksandr Valialkin
c2186279b7 lib/promscrape: add filters option to dockerswarm_sd_config like Prometheus did in v2.23.0 2020-11-23 16:27:33 +02:00
Aliaksandr Valialkin
d892d63204 lib/promscrape: hint that -enableTCP6 command-line flag can be used for connecting to IPv6 addresses 2020-11-21 14:39:05 +02:00
Aliaksandr Valialkin
8608e956dd lib/promscrape/discovery/eureka: follow-up after eec76718e9 2020-11-20 14:02:14 +02:00
Nikolay
bb2bcb9725 Adds eureka service discovery (#913) 
* Adds eureka service discovery
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/851
Netflix service discovery for AWS

* Apply suggestions from code review

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2020-11-20 14:02:13 +02:00
Vasily
8ba168f3be
Add omitempty for DisableCompression and DisableKeepAlive fields in ScrapeConfig (#796) 
* Add omitempty for DisableCompression and DisableKeepAlive fields in ScrapeConfig

* Add omitempty annotation to all the default/optional values

* Fix annotations after review
 2020-11-13 16:17:03 +02:00
Aliaksandr Valialkin
697fd44158 lib/promscrape: make a copy of ScrapeWork from discovered []ScrapeWork slice instead of referring to an item in this slice 
This should prevent from holding previously discovered []ScrapeWork slices when a part of discovered targets changes over time.
This should reduce memory usage for the case when big number of discovered scrape targets changes over time.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825
 2020-11-10 16:13:31 +02:00
Aliaksandr Valialkin
2ec02b7bdb lib/promscrape: pre-allocate slice for discovered targets based on previously discovered targets 
This should reduce load on GC a bit when discovering big number of scrape targets
 2020-11-10 15:57:43 +02:00
Aliaksandr Valialkin
a8562d643b lib/promscrape: add -promscrape.dropOriginalLabels command-line flag for reducing memory usage when discovering big number of scrape targets 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/878
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825
 2020-11-10 00:20:49 +02:00
Aliaksandr Valialkin
aa3e46a02d lib/promscrape: further reduce memory usage for per-scrape target labels by making a copy of actually used labels 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825
 2020-11-09 10:55:03 +02:00
Aliaksandr Valialkin
b8083b7659 lib/promscrape: clean references to label name and label value strings after applying per-target relabeling 
This should reduce memory usage when per-target relabeling creates big number of temporary labels
with long names and/or values.

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825
 2020-11-07 16:19:52 +02:00
Aliaksandr Valialkin
b4efe626d7 lib/promscrape/discovery/kubernetes: go fmt 2020-11-07 13:04:09 +02:00
Aliaksandr Valialkin
92bc1afcee lib/promscrape/discovery/kubernetes: reduce memory usage for labels when discovering big number of scrape targets by using string concatenation instead of fmt.Sprintf 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825
 2020-11-07 13:03:01 +02:00
Aliaksandr Valialkin
535fea3d11 lib/promscrape: eliminate data race in stream parse mode 
Previously `-promscrape.streamParse` mode could result in garbage labels for the scraped metrics because of data race.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825#issuecomment-723198247
 2020-11-07 12:45:52 +02:00
Nikolay
5b235b902b Adds ready probe (#874) 
* adds leading forward slash check for scrapeURL path
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/835

* adds ready probe for scrape config initialization,
it should prevent metrics loss during vmagent rolling update,
/ready api will return 425 http code, if some scrape config still waits for initialization.

* updates docs

* Update app/vmagent/README.md

* renames var

* Update app/vmagent/README.md

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2020-11-04 20:33:48 +02:00
Aliaksandr Valialkin
2cd86d0220 lib/promscrape: docs update after e4182dd896 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/878
 2020-11-04 17:13:34 +02:00
Nikolay
d0a9b24c5a reduces memory usage for vmagent, (#880) 
* reduces memory usage for vmagent,
limits count of droppedTarget, that can be stored for /api/v1/targets page up to 999 items,
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/878

* Update app/vmagent/README.md

* Update app/vmagent/README.md

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2020-11-04 17:13:33 +02:00
Aliaksandr Valialkin
f35aafb6a5 Revert "lib/promscrape: add -promscrape.dropOriginalLabels command-line flag for reducing memory usage when discovering big number of scrape targets" 
This reverts commit b08c6f5144.
 2020-11-04 11:45:38 +02:00
Aliaksandr Valialkin
b08c6f5144 lib/promscrape: add -promscrape.dropOriginalLabels command-line flag for reducing memory usage when discovering big number of scrape targets 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/878
 2020-11-04 11:09:05 +02:00
Aliaksandr Valialkin
c046735571 lib/promscrape: reduce memory allocations in promLabelsString() function 
This should help with reducing memory usage in https://github.com/VictoriaMetrics/VictoriaMetrics/issues/878
 2020-11-04 10:38:59 +02:00
Aliaksandr Valialkin
3ed9f1d5a9 lib/promscrape: properly handle response body after 301 redirect 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/869
 2020-11-02 01:09:59 +02:00
Nikolay
e8fe618bbb fixes panic at scrape error body formating, (#868) 
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/864
regression after body reuse improvements
 2020-11-01 23:25:23 +02:00
Nikolay
058f49de57 adds leading forward slash check for scrapeURL path (#855) 
* fixes in-consistency with prometheus behaviour for scrape targets url path.
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/835
 2020-11-01 23:22:16 +02:00