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595 commits

Author SHA1 Message Date
Aliaksandr Valialkin
0e19f35af5 lib/promscrape/discovery/dns: add __meta_dns_srv_record_target and __meta_dns_srv_record_port labels 
This syncs dns service discovery with Prometheus 2.21 - see https://github.com/prometheus/prometheus/releases
and https://github.com/prometheus/prometheus/pull/7678 .
 2020-09-11 23:39:13 +03:00
Aliaksandr Valialkin
62fde80490 lib/protoparser/common: do not read request body when parsing timestamp query arg 
This was preventing from reading data via /api/v1/prometheus/import .

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/750
 2020-09-11 14:44:58 +03:00
Aliaksandr Valialkin
5a90a92378 lib/storage: do not store inf values, since they may lead to significant precision loss for previously stored values 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/752
 2020-09-11 14:44:53 +03:00
Aliaksandr Valialkin
f95eea60d1 lib/protoparser: accept timestamp in milliseconds instead of seconds at /api/v1/import/prometheus 
This improves consistency with timestamps in Prometheus text exposition format
 2020-09-11 14:04:46 +03:00
Aliaksandr Valialkin
2380e9b017 app/{vminsert,vmagent}: allow passing timestamp via timestamp query arg when ingesting data to /api/v1/import/prometheus 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/750
 2020-09-11 13:27:14 +03:00
Nikolay Khramchikhin
6c80ae0da8
Added endpointslices discovery to k8s api (#760) 
This is similar to https://github.com/prometheus/prometheus/pull/6838 , which will be added in Prometheus v2.21.
See https://github.com/prometheus/prometheus/releases/tag/v2.21.0-rc.1

* Added endpointslices discovery to k8s api

Started from 1.17 k8s version endpointslices is beta,
it allows to query k8s api for endpoints more efficient.
It presents at scrape_config.yaml as separate role for kubernetes_sd_config.
kubernetes_sd_config:
- role: endpointslices

* fixed typos, changed EndpointConditions signature - with values instead of pointers
 2020-09-11 12:16:45 +03:00
Aliaksandr Valialkin
f6bc608e86 app/vmselect: initial implementation of Graphite Metrics API 
See https://graphite-api.readthedocs.io/en/latest/api.html#the-metrics-api
 2020-09-11 00:30:01 +03:00
Aliaksandr Valialkin
9d8fdff6c5 lib/storage: reuse timestamp blocks for adjancent metric blocks with identical timestamps 
This should reduce disk space usage when scraping targets containing metrics with identical names
such as `node_cpu_seconds_total`, histograms, quantiles, etc.

Expose `vm_timestamps_blocks_merged_total` and `vm_timestamps_bytes_saved_total` metrics for monitoring
the effectiveness of timestamp blocks merging.
 2020-09-09 23:59:32 +03:00
Aliaksandr Valialkin
df169b1ebd lib/httpserver: add a jitter to connection timeouts in order to protect from Thundering herd problem 2020-09-08 19:55:09 +03:00
Nikolay Khramchikhin
8d71a60a76
Changed s3 configProfile flag default, (#749) 
aws sdk has complicated logic for chosing profile name and we shouldn't set
it to `default` value. It leads to bugs and improper configuration.
Set it to empty value by default is safe. It will be automatically set to `default` by sdk.
 2020-09-07 21:53:24 +03:00
Aliaksandr Valialkin
be6ae4b5e7 lib/memory: fall back to reading hierarchical memory limit in cgroups when the default limit isn't set 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/699
 2020-09-04 00:05:05 +03:00
Aliaksandr Valialkin
d387da142e lib/httpserver: add -http.connTimeout command-line flag for limiting the lifetime for incoming http connections 
This can be useful for balancing incoming connections among multiple services.
 2020-09-03 22:23:29 +03:00
Aliaksandr Valialkin
f41b36bb9a app/{vminsert,vmagent}: allow adding extra labels when importing data via Prometheus, CSV and JSON line formats 
Extra labels may be added to the imported data by passing `extra_label=name=value` query args.
Multiple query args may be passed in order to add multiple extra labels.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/719
 2020-09-02 19:43:21 +03:00
Aliaksandr Valialkin
038358b777 lib/promscrape: use the number of parsed rows as a basis for writeRequestCtxPool leveling 
The previous basis on `cap(sw.labels)` doesn't work anymore after 7785869ccc ,
because `sw.labels` may be reset multiple times when processing big number of rows.
 2020-09-02 18:46:01 +03:00
Aliaksandr Valialkin
c2ff8de456 lib/httpserver: add -http.idleConnTimeout command-line flag for tuning the timeout for incoming idle http connections 2020-09-01 15:33:24 +03:00
Aliaksandr Valialkin
b059f194e4 lib/promscrape: fix applying sample_limit when scraping targets with big number of metrics 
This has been broken at 7785869ccc
 2020-09-01 11:08:13 +03:00
Aliaksandr Valialkin
7785869ccc lib/promscrape: reduce memory usage when scraping targets with millions of metrics 
This should help when scraping /federate endpoints from Prometheus instances,
which scrape millions of metrics. See https://prometheus.io/docs/prometheus/latest/federation/
 2020-09-01 10:57:07 +03:00
Aliaksandr Valialkin
acbcad1ece lib/{promscrape,leveledbytebufferpool}: rename getPoolIdAndCapacity to getPoolIDAndCapacity in order to make golint happy 2020-08-28 09:49:32 +03:00
Aliaksandr Valialkin
f4c4ab811b lib/cgroup: limit the maximum GOMAXPROCS value to the number of available CPU cores 
There is no sense in setting GOMAXPROCS to value higher than the number of available CPU cores.
 2020-08-28 09:49:32 +03:00
Roman Khavronenko
f2c004d1ae
lib/flagutil: avoid int overflow for arch 386 (#710) 
Arch 386 is a 32-bit architecture and interprets int type for numbers as an explicit int32,
whereas on most modern CPUs int is implicitly an int64. This makes tests to fail with
`int overflow` error.
 2020-08-20 22:27:37 +01:00
Aliaksandr Valialkin
efc730863b lib/promscrape: reduce memory usage when scraping targets with big number of metrics alongside targets with small number of labels 
Previously targets with big number of metrics and/or labels could generated too big buffers,
which then could be re-used when scraping targets with small number of metrics.
This resulted in memory waste.

Now big buffers are used only for targets with big number of metrics / labels,
while small buffers are used for targets with small number of metrics / labels.
 2020-08-16 22:29:51 +03:00
Aliaksandr Valialkin
d6967319b6 lib/leveledbytebufferpool: allocate byte buffers with capacity rounded to the upper boundary for the given bucket 
This should reduce the number of resizings for the returned byte buffers.
 2020-08-16 22:13:30 +03:00
Roman Khavronenko
f5f59896ec
lib/decimal: rename significant decimal digits to significant figures (#698) 
The previous notion was inconsistent with what `decimal.Round` does.
According to [wiki](https://en.wikipedia.org/wiki/Significant_figures) rounding
applied to all significant figures, not just decimal ones.
 2020-08-16 17:21:35 +03:00
Aliaksandr Valialkin
147c35ebd4 all: allow using KB, MB, GB, KiB, MiB and GiB suffixes in command-line flag values related to byte sizes or byte rates 2020-08-16 17:05:52 +03:00
Aliaksandr Valialkin
7c0d6a8b88 lib/memory: improve log message about the memory allowed to use by VictoriaMetrics 2020-08-16 16:04:11 +03:00
Aliaksandr Valialkin
ed00eb3f33 lib/protoparser: removed unnecessary call to SetReadDeadline when reading a stream of data 
The OS should return any buffered data in the stream without the need to set the read timeout.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/696
 2020-08-15 15:38:08 +03:00
Aliaksandr Valialkin
00b1659dde lib: dump compressed block contents on error during decompression 
This should improve detecting root cause for https://github.com/facebook/zstd/issues/2222
 2020-08-15 14:44:33 +03:00
Aliaksandr Valialkin
b3849a90fd lib/leveledbytebufferpool: pre-allocate byte slice with the given capacity if the pool is empty 
This should reduce memory allocations and copying when the byte slice is growing.
 2020-08-15 01:40:54 +03:00
Aliaksandr Valialkin
7554be172d lib/protoparser: move common code for detecting timeouts to ReadLinesBlockExt 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/696
 2020-08-14 20:40:15 +03:00
Aliaksandr Valialkin
4beab7ad39 lib/protoparser: prevent from busy loop on repeated timeout errors when reading streams of ingested data 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/696
 2020-08-14 20:14:11 +03:00
Aliaksandr Valialkin
52791fd1c0 lib/memory: add -memory.allowedBytes command-line flag for setting absolute memory limit for VictoriaMetrics caches 2020-08-14 19:13:38 +03:00
Aliaksandr Valialkin
576da0fe46 app/{vminsert,vmagent}: improve documentation for -influxListenAddr command-line flag 2020-08-14 18:04:44 +03:00
Aliaksandr Valialkin
215967437d lib/protoparser/prometheus: typo fix in error message 2020-08-14 11:04:23 +03:00
Aliaksandr Valialkin
e646674b23 lib/promscrape: use a hint on body length instead of body capacity 
This should reduce memory usage for https://github.com/VictoriaMetrics/VictoriaMetrics/issues/689
 2020-08-14 01:17:52 +03:00
Aliaksandr Valialkin
4628deecd1 lib/promscrape: reduce memory usage when scraping big number of targets 
Thanks to @dxtrzhang for the original idea at https://github.com/VictoriaMetrics/VictoriaMetrics/pull/688

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/689
 2020-08-14 01:04:53 +03:00
Aliaksandr Valialkin
eead3ee8ec lib/promscrape: properly retry requests on the server closed connection before returning the first response byte error during service discover API calls and target scrapes 2020-08-13 22:31:52 +03:00
Aliaksandr Valialkin
c402265e88 all: support %{ENV_VAR} placeholders in yaml configs in all the vm* components 
Such placeholders are substituted by the corresponding environment variable values.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/583
 2020-08-13 17:15:25 +03:00
Aliaksandr Valialkin
ef7e2af8f5 app: respect CPU limits set via cgroups 
Update GOMAXPROCS to limits set via cgroups. This should reduce CPU trashing and reduce memory usage
for cases when VictoriaMetrics components run in containers with CPU limits.

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/685
 2020-08-11 22:59:19 +03:00
Aliaksandr Valialkin
15aa6142ef lib/protoparser: clarify that the string passed to Unmarshal() function must remain available when the parsed rows are in use 2020-08-11 17:04:39 +03:00
Aliaksandr Valialkin
c098988a18 lib/protoparser/influx: accept precision=us and precision=µ according to https://docs.influxdata.com/influxdb/v1.8/tools/api/#write-http-endpoint 2020-08-10 20:23:26 +03:00
Aliaksandr Valialkin
1bdfa29ef7 lib/promscrape: optimize per-metric hash calculations 
This increases vmagent performance by up to 10% when scraping big number of metrics
 2020-08-10 19:49:03 +03:00
Aliaksandr Valialkin
8d9eb5f808 lib/storage: mention time range used in the query that led to error message 
This should improve detecting slow queries with too big time ranges
 2020-08-10 13:46:36 +03:00
Aliaksandr Valialkin
582c74cd93 lib/storage: mention tag filters used in the query that led to error message 
This should improve detecting invalid or heavy queries that lead to errors.
 2020-08-10 13:36:49 +03:00
Aliaksandr Valialkin
f3d33e23c9 app/vmstorage: improve error logging when the request times out 2020-08-10 13:23:26 +03:00
Aliaksandr Valialkin
455bf50a91 lib/promscrape: show real timestamp and real duration for the scape on /targets page 
Previously the scrape duration may be negative when calculated scrape timestamp drifts away from the real scrape timestamp
 2020-08-10 12:40:25 +03:00
Aliaksandr Valialkin
a499de45cc lib/promscrape: make errcheck happy 2020-08-09 13:17:18 +03:00
Aliaksandr Valialkin
23c9e6b727 lib/promscrape: export scrape_samples_added per-target metric like Prometheus does 
This metric may be useful for detecting targets with high churn rate for the exported metrics.

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/683
 2020-08-09 12:45:39 +03:00
Aliaksandr Valialkin
9d32fb1d9e lib/fs: use WARN instead of ERROR log level for the message when NFS diretory removal temporarily fails 
this is expected condition, so it is better to use WARN log level for it
 2020-08-09 12:07:30 +03:00
Aliaksandr Valialkin
d4b6d22987 lib/promscrape: add a test for scrape config for blackbox exporter 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/684
 2020-08-09 12:02:48 +03:00
Aliaksandr Valialkin
84fd8af6d3 lib/storage: slow down concurrent searches when the number of concurrent inserts reaches the limit 
This should improve data ingestion performance when heavy searches are executed

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/648
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/618
 2020-08-07 08:49:40 +03:00