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383 commits

Author SHA1 Message Date
Aliaksandr Valialkin
9ef5935552 lib/promscrape: initial implementation for gce_sd_configs aga Prometheus-compatible service discovery for Google Compute Engine 2020-04-24 17:51:22 +03:00
Aliaksandr Valialkin
24461153bf lib/promscrape: query /api/v1/namespaces/* for the configured namespaces in kubernetes_sd_config 
This should fix authroization issues described at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/432
 2020-04-24 14:33:50 +03:00
Aliaksandr Valialkin
00e897119f lib/promscrape: add -promscrape.configCheckInterval command-line flag for automating config checking 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/431
 2020-04-23 23:41:08 +03:00
Aliaksandr Valialkin
a9a7a7175e lib/promscrape: access Config entries by reference, so they can be compared by addresses 2020-04-23 14:38:20 +03:00
Aliaksandr Valialkin
1c5d14a2eb lib/promscrape: move KubernetesSDConfig to lib/promscrape/discovery/kubernetes 2020-04-23 11:34:22 +03:00
Aliaksandr Valialkin
a714568374 lib/promscrape/discovery/kubernetes: hide role switch logic behind GetLabels function 2020-04-22 22:16:11 +03:00
Aliaksandr Valialkin
364db13c9c app/vmselect: add /api/v1/status/tsdb page with useful stats for locating root cause for high cardinality issues 
See https://prometheus.io/docs/prometheus/latest/querying/api/#tsdb-stats

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/425
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/268
 2020-04-22 22:03:43 +03:00
Aliaksandr Valialkin
2dc5593b75 lib/writeconcurrencylimiter: improve docs for -maxConcurrentInserts command-line flag 2020-04-20 21:03:00 +03:00
Aliaksandr Valialkin
5454b518a6 lib/promscrape/discovery/kubernetes: reuse a client for empty api_server inside different jobs 2020-04-20 17:07:11 +03:00
Aliaksandr Valialkin
43375df923 lib/promscrape/discovery/kubernetes: update stale comments 2020-04-17 14:06:20 +03:00
Aliaksandr Valialkin
5d1537a395 lib/promscrape: suppress scrape errors if -promscrape.suppressScrapeErrors flag is set 2020-04-16 23:41:30 +03:00
Aliaksandr Valialkin
600490131f lib/promscrape: print all the labels for the target on error message for failed scrape 
This should improve debuggability.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/420
 2020-04-16 23:35:05 +03:00
Aliaksandr Valialkin
bd4c6d21dd lib/promscrape: retry target scraping when the target closes previously established keep-alive connection to it 
This should fix the following error:

the server closed connection before returning the first response byte. Make sure the server returns 'Connection: close' response header before closing the connection
 2020-04-16 23:25:29 +03:00
Aliaksandr Valialkin
2fd2dec5eb lib/logger: typo fix 2020-04-16 00:19:10 +03:00
Aliaksandr Valialkin
071fdf5518 lib/logger: add WARN level for logging expected errors such as invalid user queries 2020-04-15 20:50:26 +03:00
Aliaksandr Valialkin
6f7f64f757 app/vmselect: handle timestamp(metric offset X) the same way as Prometheus does 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/415
 2020-04-15 12:01:00 +03:00
Aliaksandr Valialkin
426a0567c4 lib/promscrape: code cleanup in runScraper func 2020-04-15 11:36:24 +03:00
Aliaksandr Valialkin
c1de3f67b4 lib/storage: skip metricID if the corresponding metricID->metricName is missing in inverted index during search 
This case is possible when the corresponding metricID->metricName entry didn't propagate to inverted index yet.

This should fix the following error:

error when searching tsids for tfss [...]: cannot find metricName by metricID 1582417212213420669: EOF
 2020-04-15 00:06:43 +03:00
Aliaksandr Valialkin
067c7afebc lib/promscrape: show information on improperly configured scrape targets at the bottom of /targets page 
This is a common error whith improperly configured target autodiscovery and/or relabeling.
This error leads to duplicate scraping of the same targets with the same set of labels, which leads
to duplicate samples in time series.
 2020-04-14 14:55:05 +03:00
Aliaksandr Valialkin
ac35635b71 lib/promscrape/discovery/kubernetes: remove only unused client for API server during cleaning 2020-04-14 14:19:21 +03:00
Aliaksandr Valialkin
78863d7066 lib/promscrape: add promrelabel.GetLabelValueByName helper function 2020-04-14 14:12:01 +03:00
Aliaksandr Valialkin
c64f003cfb lib/promscrape: mention job name in error messages when target cannot be scraped 
This should improve debuggability
 2020-04-14 13:33:13 +03:00
Aliaksandr Valialkin
4718a5d951 lib/promscrape: reset ScrapeWork.ID in tests 2020-04-14 13:31:31 +03:00
Aliaksandr Valialkin
257521a634 lib/promscrape: properly expose statuses for targets with duplicate scrape urls at /targets page 
Previously targets with duplicate scrape urls were merged into a single line on the page.
Now each target with duplicate scrape url is displayed on a separate line.
 2020-04-14 13:10:01 +03:00
Aliaksandr Valialkin
6a75c95194 lib/promscrape: remove labels starting with __meta_ after applying relabel_configs as Prometheus does 
This should reduce CPU load during scraping when target discovery generates
big number of `__meta_*` labels (for instance, k8s discovery).

See https://www.robustperception.io/life-of-a-label for details.
 2020-04-14 12:23:22 +03:00
Aliaksandr Valialkin
01d7d799dc lib/promscrape: rename 'scrape_config->scrape_limit' to 'scrape_config->sample_limit' 
`scrape_config` block from Prometheus config contains `sample_limit` field,
while in `vmagent` this field was mistakenly named as `scrape_limit`.
 2020-04-14 11:59:57 +03:00
Aliaksandr Valialkin
2e4e202c2b lib/promscrape: add initial support for kubernetes_sd_config 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/334
 2020-04-13 21:03:28 +03:00
Aliaksandr Valialkin
2814b1490f lib/promscrape: add -promscrape.config.strictParse flag for detecting errors in -promscrape.config file 2020-04-13 13:15:44 +03:00
Aliaksandr Valialkin
90b4a6dd12 lib/promscrape: extract common auth code to lib/promauth 2020-04-13 12:59:10 +03:00
Aliaksandr Valialkin
4de6c6bbf0 lib/storage: disable deduplication after dedup tests are complete 
The rest of tests expect that the de-duplication is disabled.
 2020-04-10 17:28:31 +03:00
Aliaksandr Valialkin
ded0c0d3c7 lib/storage: correctly handle -dedup.minScrapeInterval values smaller than 8ms 
Such small values may be used for removing samples with duplicate timestamps.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/409 for details.
 2020-04-10 16:36:41 +03:00
Aliaksandr Valialkin
7d73623c69 lib/{storage,mergeset}: make sure that requests and misses cache counters never go down 2020-04-10 14:45:01 +03:00
Aliaksandr Valialkin
e62afc7366 lib/protoparser: add -*TrimTimstamp command-line flags for Influx, Graphite, OpenTSDB and CSV data 
These flags can be used for reducing disk space usage for timestamps data ingested over the given protocols
 2020-04-10 12:44:39 +03:00
Aliaksandr Valialkin
0681b4c27a lib/workingsetcache: accumulate stat counters on cache rotation 
This should prevent from cache stats counters going down after cache rotation,
which may corrupt `cache hit ratio` graph on the official Grafan dasbhoards
when using the following query:

    1 - (sum(rate(vm_cache_misses_total[5m])) by (type) / sum(rate(vm_cache_requests_total[5m])) by (type))
 2020-04-10 11:51:40 +03:00
Aliaksandr Valialkin
f86947d55c lib/memory: add more details to -memory.allowedPercent help message 2020-04-09 15:28:53 +03:00
kreedom
298eb0a0f8 [vmalert] improve external url handling 2020-04-01 22:29:11 +03:00
Aliaksandr Valialkin
cdf0a4cf8f lib/httpserver: remove unnecessary http.HandlerFunc wrapper in gzipHandler 2020-04-01 18:14:17 +03:00
Aliaksandr Valialkin
e0d0348f36 lib/storage: add missing reset for tagFilter.matchesEmptyValue on tagFilter.Init 2020-04-01 17:42:44 +03:00
Aliaksandr Valialkin
3e55c7e069 lib/promscrape: reduce timestamp jitter when scraping targets 
This should improve compression for timestamps
 2020-04-01 16:11:35 +03:00
Aliaksandr Valialkin
c4acd20d2a lib/storage: remove duplicate data points on 7/8*minScrapeInterval interval instead of 1/2*minScrapeInterval 
This should reduce storage usage and should improve deduplication accuracy
 2020-04-01 15:48:48 +03:00
Aliaksandr Valialkin
b699c46046 lib/storage: handle errors returned from TagFilters.Add when cloning TagFilters with negative filter 2020-03-31 16:18:02 +03:00
Aliaksandr Valialkin
972713bd79 lib/storage: add fast path for the previous indexdb search if it doesn't contain per-day inverted index yet 2020-03-31 12:51:21 +03:00
Aliaksandr Valialkin
5d99ca6cfc lib/storage: optimize per-day inverted index search for tag filters matching big number of time series 
- Sort tag filters in the ascending number of matching time series
  in order to apply the most specific filters first.
- Fall back to metricName search for filters matching big number of time series
  (usually this are negative filters or regexp filters).
 2020-03-31 00:48:35 +03:00
Aliaksandr Valialkin
318326c309 lib/storage: properly handle {label=~"foo|"} filters as Prometheus does 
Such filters must match all the time series with `label="foo"` plus all the time series without `label`

Previously only time series with `label="foo"` were matched.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/395
 2020-03-31 00:48:18 +03:00
Aliaksandr Valialkin
b98ca56d94 lib/envflag: add -envflag.prefix for setting optional prefix for environment vars 2020-03-30 15:51:19 +03:00
kreedom
bf6c24d0f4
[vmalert] config parser (#393) 
* [vmalert] config parser

* make linter be happy

* fix test

* fix sprintf add test for rule validation
 2020-03-29 01:48:30 +02:00
Aliaksandr Valialkin
149f365f74 lib/httpserver: add -http.maxGracefulShutdownDuration command-line flag for tuning the maximum duration required for graceful shutdown of http server 2020-03-27 21:23:30 +02:00
Aliaksandr Valialkin
047849e855 lib/uint64set: remove zero buckets after Set.Intersect 2020-03-27 01:15:58 +02:00
Aliaksandr Valialkin
f3ec424e7d lib/uint64set: small code cleanup and perf tuning 
* Remember the last accessed bucket on Has() call.
* Inline fast paths inside Add() and Has() calls.
* Remove fragile code with maxUnsortedBuckets inside bucket32.
 2020-03-25 15:30:25 +02:00
Aliaksandr Valialkin
dde4a97534 lib/uint64set: go fmt 2020-03-24 22:28:43 +02:00