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614 commits

Author SHA1 Message Date
Aliaksandr Valialkin
9739283dad lib/storage: reduce CPU load for idle VictoriaMetrics by reducing the frequency for the need for background merges 2020-09-21 15:54:11 +03:00
Aliaksandr Valialkin
3e8569f456 lib/decimal: optimize maxUpExponent() by eliminating division from hot path 2020-09-19 13:50:09 +03:00
Aliaksandr Valialkin
f00e0e0103 lib/persistentqueue: sync data to file inside filestream.Writer.MustFlush 2020-09-19 12:51:41 +03:00
Aliaksandr Valialkin
26115891db lib/decimal: properly store Inf values 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/752
 2020-09-18 19:07:07 +03:00
Aliaksandr Valialkin
1a9ee39b0e lib/promscrape: avoid copying response body when scraping targets. 
This should reduce memory usage when scraping targets with millions of metrics.
 2020-09-18 13:05:43 +03:00
Aliaksandr Valialkin
70c721c01b lib/persistentqueue: flush data to disk every second 
Previously small amounts of data may be left unflushed for extended periods of time if vmagent collects small amounts of data.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/687
 2020-09-18 13:05:40 +03:00
Aliaksandr Valialkin
1f33dd717f lib/storage: add /internal/force_merge handler for running forced compactions on historical per-month partitions 
This may be useful for freeing up storage space after time series deletion.

See https://victoriametrics.github.io/#force-merge for more details.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/686
 2020-09-17 12:20:40 +03:00
Aliaksandr Valialkin
8beb0da6ad lib/{mergeset,storage}: compare errors with errors.Is() 2020-09-17 03:03:02 +03:00
Aliaksandr Valialkin
067d7c1ea1 lib/{mergeset,storage}: code prettifying 2020-09-17 02:06:31 +03:00
Aliaksandr Valialkin
020bd8685e lib/storage: removed duplicate checks for empty parts during merge - another check is in the beginning of mergeParts functions 2020-09-17 01:49:03 +03:00
Aliaksandr Valialkin
ab53cb6f7b app/vmagent: substitute -remoteWrite.url with secret-url value in logs, since it may contain sensitive info such as passwords or auth tokens 
Pass `-remoteWrite.showURL` command-line flag in order to see real `-remoteWrite.url` values in logs and at `/metrics` page.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/773
 2020-09-16 22:36:25 +03:00
Aliaksandr Valialkin
39dee12ed7 lib/persistentqueue: code simplification after d455764a6f 2020-09-16 21:14:19 +03:00
Aliaksandr Valialkin
d455764a6f lib/persistentqueue: make the persistent queue more durable against unclean shutdown (kill -9, OOM, hard reset) 
The strategy is:

- Periodical flushing of inmemory blocks to files, so they aren't lost on unclean shutdown.
- Periodical syncing of metadata for persisted queues, so the metadata remains in sync with the persisted data.
- Automatic adjusting of too big chunk size when opening the queue. The chunk size may be bigger than the writer offset after unclean shutdown.
- Skipping of broken chunk file if it cannot be read.
- Fsyncing finalized chunk files.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/687
 2020-09-16 18:13:44 +03:00
Aliaksandr Valialkin
ffadf035fa lib/protoparser/vmimport: add more testcases for invalid timestamps and values 
Updates https://github.com/VictoriaMetrics/vmctl/issues/25
 2020-09-16 02:22:06 +03:00
Aliaksandr Valialkin
d8183c3124 lib/protoparser: report more errors for incorrect timestamps and/or values 
Previously certain errors in timestamps and/or values could be silently skipped,
which could lead to samples with zero values stored in the database.

Updates https://github.com/VictoriaMetrics/vmctl/issues/25
 2020-09-16 02:14:18 +03:00
Aliaksandr Valialkin
9bc8484ab6 lib/protoparser/graphite: return error when value or timestamp cannot be properly parsed 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/99
 2020-09-16 01:35:12 +03:00
Aliaksandr Valialkin
fa01169c3d lib/promscrape: add a link to troubleshooting docs to error message when duplicate scrape target with identical labels is skipped 2020-09-15 14:16:05 +03:00
Aliaksandr Valialkin
ba74d0c14c lib/promscrape: typo fix 2020-09-12 00:14:21 +03:00
Aliaksandr Valialkin
7d893a234c lib/promscrape: do not reset the remaining rows when pushing a part of data to remote storage during big scrapes 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/753

Thanks to @PerGon and @clmssz for help with debugging.
 2020-09-11 23:39:13 +03:00
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