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587 commits

Author SHA1 Message Date
kreedom
fb967ae6c8 happy fmt 2020-04-26 14:16:32 +03:00
Aliaksandr Valialkin
d7c1ff8b0c lib/storage: improve deduplication algorithm 
Now it leaves only the first data point on each `-dedup.minScrapeInterval` interval.

Previously it may leave two data points on the interval. This could lead to unexpected results
for `histogram_quantile(phi, sum(rate(buckets)) by (le))` query.
 2020-04-26 13:10:02 +03:00
Aliaksandr Valialkin
491b31b369 lib/storage: postpone label filters matching too many time series instead of giving up with error 
This should reduce the frequency of the following errors:

    cannot find tag filter matching less than N time series; either increase -search.maxUniqueTimeseries or use more specific tag filters

    more than N time series found on the time range [...]; either increase -search.maxUniqueTimeseries or shrink the time range
 2020-04-24 21:13:50 +03:00
Aliaksandr Valialkin
7b8008e0bd lib/promscrape/discovery/gce: make golint happy by ignoring resp.Body.Close() result 2020-04-24 18:13:09 +03:00
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
Aliaksandr Valialkin
f3e0c55ea1 lib/storage: serialize snapshot creation process with mutex 
This guarantees that the snapshot contains all the recently added data
from inmemory buffers when multiple concurrent calls to Storage.CreateSnapshot are performed.
 2020-03-24 22:27:05 +02:00
Aliaksandr Valialkin
97fb0edd07 lib/uint64set: added more tests 2020-03-24 22:27:04 +02:00
Aliaksandr Valialkin
df91d2d91f lib/storage: remove obsolete code 2020-03-13 22:48:17 +02:00
Aliaksandr Valialkin
499594f421 lib/promscrape: allow overriding external_labels as Prometheus does 
Prometheus docs at https://prometheus.io/docs/prometheus/latest/configuration/configuration/#scrape_config say:

> In communication with external systems, they are always applied only
> when a time series does not have a given label yet and are ignored otherwise.

Though this may result in consistency chaos when scrape targets override `external_labels`,
let's stick with Prometheus behavior for the sake of backwards compatibility.

There is last resort in vmagent with `-remoteWrite.label`, which consistently
sets the configured labels to all the metrics before sending them to remote storage.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/366
 2020-03-12 20:24:42 +02:00
Aliaksandr Valialkin
fdc2a9d1d7 app/vmselect: add label_map(q, label, srcValue1, dstValue1, ... srcValueN, dstValueN) function to MetricsQL 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/369
 2020-03-12 19:13:47 +02:00
Aliaksandr Valialkin
c8dc1cd218 lib/protoparser/csvimport: add missing metric vm_rows_invalid_total{type="csvimport"} 2020-03-12 15:27:45 +02:00
Aliaksandr Valialkin
d4beb17ebe lib/promscrape: remove possible races when registering and de-registering scrape workers for /targets page 2020-03-11 16:30:21 +02:00
Aliaksandr Valialkin
cdf70b7944 lib/promscrape: consistently update /targets page after SIGHUP 2020-03-11 03:20:03 +02:00
Aliaksandr Valialkin
1fe66fb3cc app/{vmagent,vminsert}: add support for importing csv data via /api/v1/import/csv 2020-03-10 21:15:35 +02:00
Aliaksandr Valialkin
49d7cb1a3f all: fix golangci-lint issues 2020-03-10 19:41:46 +02:00
Aliaksandr Valialkin
7c432da788 lib/promscrape: do not retry idempotent requests when scraping targets 
This should prevent from the following unexpected side-effects of idempotent request retries:
- increased actual timeout when scraping the target comparing to the configured scrape_timeout
- increased load on the target

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/357
 2020-03-09 13:31:52 +02:00
Aliaksandr Valialkin
986dba5ab3 app/vmagent: do not allow non-supported fields in -remoteWrite.relabelConfig and file_sd_configs 
This should reduce possible confusion like in the https://github.com/VictoriaMetrics/VictoriaMetrics/issues/363
 2020-03-06 20:19:13 +02:00
Aliaksandr Valialkin
c5f894b361 Makefile: add build and test rules with enabled race detector. These rules have -race suffix 
Fix also `unsafe pointer conversion` errors detected by Go1.14. See https://golang.org/doc/go1.14#compiler .
 2020-03-05 12:03:38 +02:00
Aliaksandr Valialkin
9a944fd169 lib/promscrape: consistency renaming: stopCh -> globalStopCh 2020-03-03 20:08:08 +02:00
Aliaksandr Valialkin
76036c1897 app/vmagent: add -remoteWrite.maxDiskUsagePerURL for limiting the maximum disk usage for each -remoteWrite.url buffer 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/352
 2020-03-03 19:49:07 +02:00
Aliaksandr Valialkin
1d7ab78b55 lib/protoparser/prometheus: allow trailing comma in tags list 
The trailing comma is generated by cloudwatch exporter.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/350
 2020-03-02 22:22:09 +02:00
Aliaksandr Valialkin
b785429ddb lib/protoparser: metrics renaming: vm_protoparser_<type>_* -> vm_protoparser_*{type="<type>"} 
This should improve composability of these metrics in PromQL queries
 2020-02-28 20:20:10 +02:00
Aliaksandr Valialkin
e22fdc1073 lib/persistentqueue: reset chunk file when the persistent queue is empty 2020-02-28 20:05:53 +02:00
Aliaksandr Valialkin
18af31a4c2 all: properly split vm_deduplicated_samples_total among cluster components 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/345
 2020-02-27 23:48:07 +02:00
Aliaksandr Valialkin
6819db5686 lib/envflag: typo fix in docs to -envflag.enable: envoronment->environment 2020-02-27 21:47:58 +02:00
Aliaksandr Valialkin
b63e4464f4 lib/promscrape: properly reload new configs on SIGHUP 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/335
 2020-02-26 13:54:00 +02:00
Aliaksandr Valialkin
6739c2749d lib/promscrape: go fmt 2020-02-25 20:56:44 +02:00
Aliaksandr Valialkin
7a33da8fea lib/promscrape: do not add missing port to __address__ label in order to be consistent with Prometheus behavior 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/331
 2020-02-25 20:49:50 +02:00
Aliaksandr Valialkin
4e24839a2c app/vmagent: do not allow sending unpacked requests with sizes exceeding -maxInsertRequestSize 2020-02-25 19:34:41 +02:00
Aliaksandr Valialkin
6386aeb1e0 app/vmagent: add ability to accept Influx line protocol data via TCP and UDP 
Just set `-influxListenAddr` command-line flag

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/333
 2020-02-25 19:12:49 +02:00
Aliaksandr Valialkin
7ef7c9368e lib/fs: typo fix: read blocks bigger than 8KB via pread() call instead of using mmap 2020-02-25 18:05:06 +02:00
Aliaksandr Valialkin
fed2959658 lib/envflag: substitute dots with underscores in env var names if -envflag.enable is set 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/311
 2020-02-24 21:14:44 +02:00
Aliaksandr Valialkin
04762344c6 app/vmagent: initial implementation for vmagent 2020-02-23 13:36:03 +02:00
Aliaksandr Valialkin
d21cb43e48 lib/storage: add vm_ prefix to deduplicated_samples_total metric to be conistent with other metrics 2020-02-21 19:33:59 +02:00
Aliaksandr Valialkin
71a52f5f90 lib/protoparser/prometheus: skip leading whitespace from tag names 2020-02-16 19:06:33 +02:00
Aliaksandr Valialkin
ce15cecae4 lib/storage: typo fix 2020-02-16 15:53:44 +02:00
Aliaksandr Valialkin
32e153e834 lib/storage: prevent from clobbering nin-nil lastError in Storage.add 2020-02-16 15:51:26 +02:00
Aliaksandr Valialkin
7b1c7051a3 app/vmselect: add sort_by_label(q, label) and sort_by_label_desc(q, label) functions 
This is implementation of https://github.com/prometheus/prometheus/pull/1533 for VictoriaMetrics.
 2020-02-13 17:01:37 +02:00
Aliaksandr Valialkin
7836ad8907 lib/mergeset: skip createing temporary part objects when merging source inmemory parts 
This should reduce CPU usage when adding new entries to inverted index.
This should alos prevent from creating stalled cleaner goroutines for the created temporary parts,
since they were never closed.

This should fix the following issue: https://github.com/VictoriaMetrics/VictoriaMetrics/issues/316 .
 2020-02-13 14:09:32 +02:00
Aliaksandr Valialkin
eceaf13e5e lib/{storage,mergeset}: use time.Ticker instead of time.Timer where appropriate 
It has been appeared that time.Timer was used in places where time.Ticker must be used instead.
This could result in blocked goroutines as in the https://github.com/VictoriaMetrics/VictoriaMetrics/issues/316 .
 2020-02-13 13:10:07 +02:00
Aliaksandr Valialkin
4cc0163c7c docs: migrate ExtendedPromQL->MetricsQL in order to be more consistent 2020-02-10 23:02:43 +02:00
Aliaksandr Valialkin
025297f15d lib/envflag: check for incorrect flag values read from environment vars 2020-02-10 16:08:10 +02:00
Aliaksandr Valialkin
5d207b2025 lib/envflag: add -envflag.enable command-line flag for enabling reading flags from environment vars 
By default flags are read only from command line. They can be read from environment vars if `-envflag.enable` is set.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/311
 2020-02-10 16:02:37 +02:00
Aliaksandr Valialkin
8466ab0034 all: allow setting flags via environment vars 
Now flags can be set via environment vars with the same names as flags.
Command-line flags override flags set via env vars.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/311
 2020-02-10 13:29:13 +02:00
Aliaksandr Valialkin
e210cd9da1 lib/storage: move -dedup.minScrapeInterval flag outside lib/storage, so it doesnt show up in vminsert in cluster version 2020-02-10 13:09:51 +02:00
Aliaksandr Valialkin
40c6ae2952 lib/logger: initialize output to os.Stderr by default 2020-02-04 22:40:44 +02:00
Aliaksandr Valialkin
e0a4c37fc1 lib/logger: add -loggerOutput command-line flag 
This flag allows changing log output from `stderr` to `stdout` if `-loggerOutput=stdout` is set.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/306
 2020-02-04 21:47:56 +02:00
Aliaksandr Valialkin
7f3e3a6034 lib/logger: do not clutter -loggerFormat=json output with stack trace 
This should improve json parsing
 2020-02-04 21:37:25 +02:00
Aliaksandr Valialkin
bd4698bb7a lib/storage: do not deduplicate blocks with less than 32 samples during merge 
This should improve deduplication accuracy for blocks with higher number of samples.
 2020-02-04 18:41:54 +02:00
Aliaksandr Valialkin
42864bb52f all: do not clash flag description with back-quoted flag types 
See https://golang.org/pkg/flag/#PrintDefaults for more details.
 2020-02-04 15:46:52 +02:00
Aliaksandr Valialkin
011a79da85 lib/fs: remove unused readerAt interface 2020-01-31 15:12:43 +02:00
Aliaksandr Valialkin
c3d86eef96 all: add -dedup.minScrapeInterval command-line flag for data de-duplication 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/86
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/278
 2020-01-31 01:16:57 +02:00
Aliaksandr Valialkin
2152f6f0cd lib/storage: re-use indexSearch inside Storage.prefetchMetricNames 2020-01-31 01:16:53 +02:00
Aliaksandr Valialkin
d70ba7eb37 lib/fs: optimize small reads for ReaderAt.MustReadAt by reading from memory-mapped space instead of reading from file descriptor 
This should improve performance when reading many small blocks.
 2020-01-30 15:09:05 +02:00
Aliaksandr Valialkin
ad8af629bb all: rename ReadAt* to MustReadAt* in order to dont clash with io.ReaderAt 2020-01-30 15:08:58 +02:00
Aliaksandr Valialkin
d68546aa4a lib/storage: pre-fetch metricNames for the found metricIDs in Search.Init 
This should speed up Search.NextMetricBlock loop for big number of found time series.
 2020-01-30 15:08:51 +02:00
Aliaksandr Valialkin
5bb9ccb6bf lib/mergeset: properly update lastAccesstime in indexBlockCache entries 
This is a follow-up for 6665f10e7b
 2020-01-29 21:20:47 +02:00
Aliaksandr Valialkin
a462355b2f app/vmselect/promql: add keep_next_value(q) for filling gaps with the next non-empty value 2020-01-29 00:48:04 +02:00
Aliaksandr Valialkin
371e86194d app/vminsert: moved -maxInsertRequestSize command-line flag out of lib/prompb in order to prevent its inclusion in vmselect and vmstorage apps 2020-01-28 23:02:08 +02:00
Aliaksandr Valialkin
6caa9bb51b lib/logger: fix improperly set skipframes for all the logging functions 
The bug has been introduced in the previous commit f6baee6efe
 2020-01-26 18:34:27 +02:00
Aliaksandr Valialkin
f6baee6efe lib/httpserver: log the caller of httpserver.Errorf 
Previously log message contained `httpserver.Errorf`, not it contains the caller of `httpserver.Errorf`, which is more useful.
 2020-01-25 20:17:59 +02:00
Aliaksandr Valialkin
9df5b2d1c3 app/victoria-metrics: add -selfScrapeInterval flag for self-scraping /metrics page 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/30
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/180
 2020-01-25 19:19:59 +02:00
Aliaksandr Valialkin
2a0a0ed14d lib/protoparser: add parser for Prometheus exposition text format 
This parser will be used by vmagent
 2020-01-24 20:11:02 +02:00
Aliaksandr Valialkin
6456c93dbb app/vminsert: move ingestion protocol parsers to lib/protoparser, so they could be re-used in the upcoming vmagent 2020-01-24 16:53:00 +02:00
Aliaksandr Valialkin
680080887d all: consistently log durations in seconds with millisecond precision 
This should improve logs readability
 2020-01-22 18:28:27 +02:00
Aliaksandr Valialkin
582dd01f42 app/vmselect/promql: add range_over_time(m[d]) function for calculating value range for m over d 2020-01-21 19:05:17 +02:00
Aliaksandr Valialkin
36973ee975 app/vmselect/promql: add label_match(q, label, regexp) and label_mismatch(q, label, regexp) functions for filtering out time series with labels matching the given regexp 2020-01-21 15:00:20 +02:00
Aliaksandr Valialkin
6665f10e7b lib/{mergeset,storage}: properly update lastAccessTime in index and data block cache entries 2020-01-20 14:59:47 +02:00
Aliaksandr Valialkin
257e61195a lib/uint64set: add missing bucket32.b16his values 2020-01-18 14:26:04 +02:00
Aliaksandr Valialkin
4cc0c44b9e lib/uint64set: optimize Set.Union 
This should improve performance for queries over big number of time series
 2020-01-18 13:47:03 +02:00
Aliaksandr Valialkin
1b5f02e293 lib/uint64set: add benchmarks for Set.Union 2020-01-18 13:47:02 +02:00
Aliaksandr Valialkin
3748fb24b6 lib/storage: skip recovering timestamps order for lossless compression (PrecisionBits=64) 2020-01-18 00:09:33 +02:00
Aliaksandr Valialkin
c9472e4f3a all: use github.com/klauspost/compress/gzip instead of compress/gzip 
`github.com/klauspost/compress/gzip` is more optimized than `compress/gzip`.
This gives better gzip compression and decompression speeds.
 2020-01-17 23:58:46 +02:00
Aliaksandr Valialkin
bc0f897fcb lib/uint64set: reduce memory allocations in Set.AppendTo 2020-01-17 22:33:09 +02:00
Aliaksandr Valialkin
f9289b804a lib/storage: reduce memory allocations when merging metricID sets 2020-01-17 22:10:44 +02:00
Aliaksandr Valialkin
0c8ad08578 lib/uint64set: typo fix in Set.Intersect 2020-01-17 18:10:58 +02:00
Aliaksandr Valialkin
9f027ec176 lib/uint64set: optimize Intersect, Subtract and Union functions 
This should improve performance for queries over big number of time series.
 2020-01-17 16:11:49 +02:00
Aliaksandr Valialkin
cd53f7d177 lib/uint64set: improve benchmark for Set.Intersect 2020-01-17 16:08:17 +02:00
Aliaksandr Valialkin
8dbf430469 lib/uint64set: add benchmark for Set.Intersect 2020-01-17 00:31:07 +02:00
Aliaksandr Valialkin
0d7505b00e all: mention command-line flags used for limiting the incoming request size in error messages 
This should improve error logs usability.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/287
 2020-01-16 13:03:30 +02:00
Aliaksandr Valialkin
605d588ba6 lib/uint64set: reduce memory usage in Union, Intersect and Subtract methods 
Iterate items with newly added Set.ForEach method instead of allocating `[]uint64`
slice for all the items before the iteration.
 2020-01-15 12:12:49 +02:00
Aliaksandr Valialkin
893b62c682 lib/{mergeset,storage}: fix uint64 counters alignment for 32-bit architectures (GOARCH=386, GOARCH=arm) 2020-01-14 22:47:04 +02:00
Aliaksandr Valialkin
7830c10eb2 lib/{storage,mergeset}: gradually remove stale entries from block cache and index caches 
This should reduce memory usage in the long run when old blocks and indexes
aren't accessed anymore.
 2020-01-14 21:38:44 +02:00
Aliaksandr Valialkin
8b14572f70 app/vmselect/promql: add hoeffding_bound_upper(phi, m[d]) and hoeffding_bound_lower(phi, m[d]) functions 
These functions can be used for calculating Hoeffding bounds
for `m` over `d` time range and for the given `phi` in the range `[0..1]`.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/283
 2020-01-11 14:46:23 +02:00
Aliaksandr Valialkin
164278151f app/vmselect/promql: add aggr_over_time(("aggr_func1", "aggr_func2", ...), m[d]) function 
This function can be used for simultaneous calculating of multiple `aggr_func*` functions
that accept range vector. For example, `aggr_over_time(("min_over_time", "max_over_time"), m[d])`
would calculate `min_over_time` and `max_over_time` for `m[d]`.
 2020-01-10 21:18:06 +02:00
Aliaksandr Valialkin
c4632faa9d app/vmselect/promql: add tmin_over_time(m[d]) and tmax_over_time(m[d]) functions 
These functions return timestamp in seconds for the minimum and maximum value for `m` over time range `d`
 2020-01-10 19:39:28 +02:00
Aliaksandr Valialkin
b8038a14e7 lib/backup/s3remote: check whether the file exists before deleting it 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/284
 2020-01-09 23:20:31 +02:00
Aliaksandr Valialkin
f358fb72d1 app/{vmbackup,vmrestore}: add backup complete file to backup when it is complete and check for this file before restoring from backup 
This should prevent from restoring from incomplete backups.

Add `-skipBackupCompleteCheck` command-line flag to `vmrestore` in order to be able restoring from old backups without `backup complete` file.
 2020-01-09 15:35:38 +02:00
Aliaksandr Valialkin
fc71602039 lib/storage: limit maxRaRowsPerPartition by 500K for any number of rawRowsShardsPerPartition 
This should reduce write amplification for high ingestion rate on multi-CPU systems
 2020-01-04 23:57:31 +02:00
Aliaksandr Valialkin
d9c4ac9978 lib/metricsql: export IsRollupFunc and IsTransformFunc, since they can be used by package users 2020-01-04 13:25:05 +02:00
Aliaksandr Valialkin
f409f2d050 app/vmselect/promql: add histogram_share(le, buckets) function 2020-01-04 12:45:55 +02:00
Aliaksandr Valialkin
b1ded7cf9a app/vmselect/promql: add absent_over_time(m[d]) func similar to the function in Prometheus 2.16 
See https://github.com/prometheus/prometheus/issues/2882
 2020-01-04 12:45:07 +02:00
Aliaksandr Valialkin
a8360d04c0 app/vmselect/promql: add histogram_over_time(m[d]) rollup function 2020-01-04 12:44:56 +02:00
Aliaksandr Valialkin
695682232f lib/uint64set: reduce memory usage when storing big number of sparse metric_id values 2020-01-03 18:16:44 +02:00
Aliaksandr Valialkin
cb3a342882 app/vmselect/promql: add share_le_over_time and share_gt_over_time functions for SLI and SLO calculations 2020-01-03 00:41:16 +02:00
Aliaksandr Valialkin
0038365206 docs: refer to standalone MetricsQL package 2020-01-02 23:43:35 +02:00
Aliaksandr Valialkin
a21d786d3c lib/metricsql: add example for ExpandWithExprs 2019-12-26 21:32:11 +02:00
Aliaksandr Valialkin
6f67e0b56b lib/metricsq: add ExpandWithExprs 2019-12-25 22:20:30 +02:00
Aliaksandr Valialkin
1925ee038d Rename lib/promql to lib/metricsql and apply small fixes 2019-12-25 22:03:59 +02:00
Mike Poindexter
bec62e4e43 Split Extended PromQL parsing to a separate library 2019-12-25 22:03:51 +02:00
Aliaksandr Valialkin
c18802af59 lib/fs: typo fix in fadvise_unix.go 2019-12-24 20:59:28 +02:00
Aliaksandr Valialkin
4ba4abe666 lib/encoding: log the compressed block contents if it cannot be decompressed or unmarshaled 
This should help detecting the root cause of https://github.com/VictoriaMetrics/VictoriaMetrics/issues/281
 2019-12-24 20:48:31 +02:00
Aliaksandr Valialkin
5bb39e757b lib/encoding: mention src contents in error message returned from unmarshalInt64NearestDelta* 
This should simplify detecting the root cause of the issue at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/281
 2019-12-24 20:41:52 +02:00
Aliaksandr Valialkin
d5c9841220 lib/encoding: mention unpacked block size in the error message if unparsed tail left 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/281
 2019-12-24 20:35:13 +02:00
Aliaksandr Valialkin
31d04fb5df Revert "lib/logger: prevent from blocking when log output isn't consumed in timely manner" 
This reverts commit e3c462f08a.

Reason to revert: this leaves incomplete logs on app shutdown.
 2019-12-24 12:21:39 +02:00
Aliaksandr Valialkin
5b75984aa9 app/vmselect/netstorage: move MustAdviseSequentialRead to lib/fs 2019-12-23 23:16:11 +02:00
Aliaksandr Valialkin
6a1499efa3 lib/encoding/zstd: prevent from possible encoder leak when concurrent goroutines create encoders for the same compressionLevel 
Thanks to @klauspost for the pointer to this issue. See https://github.com/klauspost/compress/issues/195 for details.
 2019-12-23 18:05:41 +02:00
Aliaksandr Valialkin
e3c462f08a lib/logger: prevent from blocking when log output isn't consumed in timely manner 
Drop log messages instead of blocking and increment `vm_log_messages_dropped_total` metric.
 2019-12-20 11:49:34 +02:00
Aliaksandr Valialkin
1825893eef lib/storage: scale ingestion performance by sharding rawRows on systems with more than 8 CPU cores 2019-12-19 18:18:29 +02:00
Aliaksandr Valialkin
97f70ccda7 lib/storage: optimize bulk import performance when multiple data points are inserted for the same time series 
This should speed up `/api/v1/import` and make it more scalable on multi-core systems.
 2019-12-19 18:18:29 +02:00
Aliaksandr Valialkin
bb530a0591 lib/httpserver: inline checkAuth code to make it more clear 2019-12-18 23:06:25 +02:00
koalaty-code
aea4c80dd7 Ignore /health endpoint when checking auth 2019-12-18 23:04:31 +02:00
Aliaksandr Valialkin
bc645152cb app/vminsert: simultaneously accept telnet put and HTTP /api/put OpenTSDB metrics at -opentsdbListenAddr 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/266
 2019-12-14 00:30:12 +02:00
Aliaksandr Valialkin
f5ac9b0721 lib/logger: add -loggerFormat for choosing log message formats 
Supported formats: default, json

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/265
 2019-12-13 15:10:05 +02:00
Aliaksandr Valialkin
3c076544bf app/vmselect/promql: allow negative offsets 
Updates https://github.com/prometheus/prometheus/issues/6282
 2019-12-11 01:00:23 +02:00
Aliaksandr Valialkin
0ed9258545 lib/{mergeset,storage}: log info message when both source and destination part paths from txn are missing during startup 
This is expected condition after unclean shutdown (OOM, hard reset, `kill -9`) on NFS disk.
 2019-12-09 15:44:53 +02:00
Aliaksandr Valialkin
72345eb5bd lib/{mergeset,storage}: make sure pending transaction deletions are finished before and after runTransactions call. 
`runTransactions` call issues async deletions for transaction files. The previously issued transaction deletions
can race with the next call to `runTransactions`. Prevent this by waiting until all the pending transaction
deletions are funished in the beginning of `runTransactions`. Also make sure that all the pending transaction
deletions are finished before returning from `runTransactions`.
 2019-12-04 21:40:30 +02:00
Aliaksandr Valialkin
1244ad810d lib/httpserver: add /ping handler for compatibility with Influx agents 
Certain Influx agents check for `/ping` endpoint before starting
to send Influx line protocol data. See https://docs.influxdata.com/influxdb/v1.7/tools/api/#ping-http-endpoint
 2019-12-04 19:15:52 +02:00
Aliaksandr Valialkin
a247236f61 lib/storage: fall back to global inverted index if a filter match too many time series in per-day index 
Previously this resulted to error message. The query may succeed via search in global index.
 2019-12-03 14:48:31 +02:00
Aliaksandr Valialkin
54741ee578 lib/storage: fix printing tag filters in TagFilters.String 2019-12-03 14:25:13 +02:00
Aliaksandr Valialkin
efbc83a13e lib/storage: print __name__ instead of empty string in user-visible tag filters 2019-12-03 14:18:28 +02:00
Aliaksandr Valialkin
f52874dab4 lib/storage: optimize regexp filter search 2019-12-03 00:43:12 +02:00
Aliaksandr Valialkin
638a5cbb16 lib/{mergeset,storage}: remove transaction files only after the mentioned dirs are really removed 
This should fix the issue on NFS when incompletely removed dirs may be left
after unclean shutdown (OOM, kill -9, hard reset, etc.), while the corresponding transaction
files are already removed.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/162
 2019-12-02 21:36:31 +02:00
Aliaksandr Valialkin
20812008a7 lib/storage: remove metricID with missing metricID->metricName entry 
The metricID->metricName entry can be missing in the indexdb after unclean shutdown
when only a part of entries for new time series is written into indexdb.

Recover from such a situation by removing the broken metricID. New metricID
will be automatically created for time series with the given metricName
when new data point will arive to it.
 2019-12-02 20:46:44 +02:00
Aliaksandr Valialkin
62a915f2b2 lib/storage: protect from time drift during indexdb rotation 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/248
 2019-12-02 14:44:42 +02:00
Aliaksandr Valialkin
42da569bcd lib/logger: merge file and line labels into location="file:line" 
This should improve the usability for `vm_log_messages_total` metric during practical queries
 2019-12-02 14:44:40 +02:00
Aliaksandr Valialkin
70b8191fab lib/storage: generate more human-friendly result in TagFilters.String 2019-12-02 13:52:22 +02:00
Aliaksandr Valialkin
542b9c2043 lib/logger: consistency renaming from vm_log_messages_count to vm_log_messages_total, since this is a counter 2019-12-02 00:49:00 +02:00
Aliaksandr Valialkin
c567919f80 lib/logger: track the number of log messages by (level, file, line) in the vm_log_messages_count metric 2019-12-01 18:37:49 +02:00
Aliaksandr Valialkin
761645b20a lib/netutil: use IPv6 for both listening and dialing if -enabledTCP6 is set 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/244
 2019-12-01 02:57:13 +02:00
Aliaksandr Valialkin
f733cb2186 lib/backup: cosmetic fixes after #243 2019-11-29 18:07:04 +02:00
glebsam
15b7406f7b Add option to provide custom endpoint for S3, add option to specify S3 config profile (#243) 
* Add option to provide custom endpoint for S3 for use with s3-compatible storages, add option to specify S3 config profile

* make fmt
 2019-11-29 17:59:56 +02:00
Aliaksandr Valialkin
9010c6a1d6 lib/netutil: add -enableTCP6 command-line flag for enabling listening for IPv6 additionally to IPv4 TCP ports 2019-11-29 17:32:47 +02:00
Aliaksandr Valialkin
a7125a5b7b lib/backup: remove flock.lock file in empty dirs 
This fixes an issue when VictoriaMetrics doesn't see the restored data after the following operations:

1. Stop VictoriaMetrics.
2. Delete `<-storageDataPath>` dir.
3. Start VictoriaMetrics, then stop it.
4. Restore data from backup with `vmrestore`.
5. Start VictoriaMetrics.

`vmrestore` didn't delete properly empty dirs in `<-storageDataPath>/indexdb` because of the remaining `flock.lock` files in these dirs.
 2019-11-28 13:38:58 +02:00
Aliaksandr Valialkin
14bcff6015 lib/httpserver: improve docs for -tls* flags to be more clear 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/242
 2019-11-26 18:08:35 +02:00
Aliaksandr Valialkin
da98703748 app/vmselect/promql: optimize binary search over big number of samples during rollup calculations 2019-11-25 14:01:46 +02:00
Aliaksandr Valialkin
5285acae3e lib/decimal: calculate ln2/ln10 constant during compile time 2019-11-23 15:52:58 +02:00
Aliaksandr Valialkin
9d1fcb2be6 vendor: update github.com/VictoriaMetrics/metrics from v1.7.2 to v1.8.0. This version supports histograms 2019-11-23 00:20:27 +02:00
Aliaksandr Valialkin
7a4635f853 all: remove the remaining mentions of cluster version 2019-11-21 23:18:22 +02:00
Aliaksandr Valialkin
3e9b7addb1 lib/httpserver: typo fix in -httpAuth.password command-line description 2019-11-21 21:54:26 +02:00
Aliaksandr Valialkin
f652c0f40f lib/storage: move non-matching tag filters to the top at matchTagFilters 
This should reduce the amount of useless work needed for matching the next metricNames.
 2019-11-21 21:35:13 +02:00
Aliaksandr Valialkin
b8cde6cce1 lib/storage: speed up time series search for queries with multiple filters 
Use optimized specialized binary search for uint64 metricIDs instead of generic sort.Search.
 2019-11-21 18:43:17 +02:00
Aliaksandr Valialkin
5c1e4143e9 lib/storage: verify the number of returned metricIDs in BenchmarkHeadPostingForMatchers 2019-11-20 15:39:28 +02:00
Aliaksandr Valialkin
52d7ca6bf0 lib/decimal: increase decimal->float speed conversion for integer numbers 2019-11-20 13:04:34 +02:00
Aliaksandr Valialkin
75eeea21ee lib/decimal: reduce rounding error when converting from decimal to float with negative exponent 
While at it, slightly increase the conversion performance by moving fast path to the top of the loop.
 2019-11-19 23:35:33 +02:00
Aliaksandr Valialkin
cfb9fa2100 lib/backup: retrieve only the required metadata when reading GCS objects 2019-11-19 21:06:34 +02:00
Aliaksandr Valialkin
443189fb0a app/{vmbackup,vmrestore}: add -maxBytesPerSecond command-line flag for limiting the used network bandwidth during backup / restore 2019-11-19 20:31:52 +02:00
Aliaksandr Valialkin
2db06f0ef8 lib/backup: prevent from restoring to directory which is in use by VictoriaMetrics during the restore 2019-11-19 18:36:23 +02:00
Aliaksandr Valialkin
b6f22a62cb lib/storage: increase the number of created time series in BenchmarkHeadPostingForMatchers in order to be on par with Promethues 
The previous commit was accidentally creating 10x smaller number of time series than Prometheus
and this led to invalid benchmark results.

The updated benchmark results:

benchmark                                                          old ns/op      new ns/op     delta
BenchmarkHeadPostingForMatchers/n="1"                              272756688      6194893       -97.73%
BenchmarkHeadPostingForMatchers/n="1",j="foo"                      138132923      10781372      -92.19%
BenchmarkHeadPostingForMatchers/j="foo",n="1"                      134723762      10632834      -92.11%
BenchmarkHeadPostingForMatchers/n="1",j!="foo"                     195823953      10679975      -94.55%
BenchmarkHeadPostingForMatchers/i=~".*"                            7962582919     100118510     -98.74%
BenchmarkHeadPostingForMatchers/i=~".+"                            7589543864     154955671     -97.96%
BenchmarkHeadPostingForMatchers/i=~""                              1142371741     258003769     -77.42%
BenchmarkHeadPostingForMatchers/i!=""                              9964150263     159783895     -98.40%
BenchmarkHeadPostingForMatchers/n="1",i=~".*",j="foo"              216995884      10937895      -94.96%
BenchmarkHeadPostingForMatchers/n="1",i=~".*",i!="2",j="foo"       202541348      10990027      -94.57%
BenchmarkHeadPostingForMatchers/n="1",i!=""                        486285711      87004349      -82.11%
BenchmarkHeadPostingForMatchers/n="1",i!="",j="foo"                350776931      53342793      -84.79%
BenchmarkHeadPostingForMatchers/n="1",i=~".+",j="foo"              380888565      54256156      -85.76%
BenchmarkHeadPostingForMatchers/n="1",i=~"1.+",j="foo"             89500296       21823279      -75.62%
BenchmarkHeadPostingForMatchers/n="1",i=~".+",i!="2",j="foo"       379529654      46671359      -87.70%
BenchmarkHeadPostingForMatchers/n="1",i=~".+",i!~"2.*",j="foo"     424563825      53915842      -87.30%

VictoriaMetrics uses 1GB of RAM during the benchmark (vs 3.5GB of RAM for Prometheus)
 2019-11-18 19:50:58 +02:00
Aliaksandr Valialkin
8a0dfc6220 lib/storage: add BenchmarkHeadPostingForMatchers similar to the benchmark from Prometheus 
See the corresponding benchmark in Prometheus - 23c0299d85/tsdb/head_bench_test.go (L52)

The benchmark allows performing apples-to-apples comparison of time series search
in Prometheus and VictoriaMetrics. The following article - https://www.robustperception.io/evaluating-performance-and-correctness -
contains incorrect numbers for VictoriaMetrics, since there wasn't this benchmark yet. Fix this.

Benchmarks can be repeated with the following commands from Prometheus and VictoriaMetrics source code roots:

- Prometheus: GOMAXPROCS=1 go test ./tsdb/ -run=111 -bench=BenchmarkHeadPostingForMatchers
- VictoriaMetrics: GOMAXPROCS=1 go test ./lib/storage/ -run=111 -bench=BenchmarkHeadPostingForMatchers

Benchmark results:
benchmark                                                          old ns/op      new ns/op     delta
BenchmarkHeadPostingForMatchers/n="1"                              272756688      364977        -99.87%
BenchmarkHeadPostingForMatchers/n="1",j="foo"                      138132923      1181636       -99.14%
BenchmarkHeadPostingForMatchers/j="foo",n="1"                      134723762      1141578       -99.15%
BenchmarkHeadPostingForMatchers/n="1",j!="foo"                     195823953      1148056       -99.41%
BenchmarkHeadPostingForMatchers/i=~".*"                            7962582919     8716755       -99.89%
BenchmarkHeadPostingForMatchers/i=~".+"                            7589543864     12096587      -99.84%
BenchmarkHeadPostingForMatchers/i=~""                              1142371741     16164560      -98.59%
BenchmarkHeadPostingForMatchers/i!=""                              9964150263     12230021      -99.88%
BenchmarkHeadPostingForMatchers/n="1",i=~".*",j="foo"              216995884      1173476       -99.46%
BenchmarkHeadPostingForMatchers/n="1",i=~".*",i!="2",j="foo"       202541348      1299743       -99.36%
BenchmarkHeadPostingForMatchers/n="1",i!=""                        486285711      11555193      -97.62%
BenchmarkHeadPostingForMatchers/n="1",i!="",j="foo"                350776931      5607506       -98.40%
BenchmarkHeadPostingForMatchers/n="1",i=~".+",j="foo"              380888565      6380335       -98.32%
BenchmarkHeadPostingForMatchers/n="1",i=~"1.+",j="foo"             89500296       2078970       -97.68%
BenchmarkHeadPostingForMatchers/n="1",i=~".+",i!="2",j="foo"       379529654      6561368       -98.27%
BenchmarkHeadPostingForMatchers/n="1",i=~".+",i!~"2.*",j="foo"     424563825      6757132       -98.41%

The first column (old) is for Prometheus, the second column (new) is for VictoriaMetrics.

As you can see, VictoriaMetrics outperforms Prometheus by more than 100x in almost all the test cases of this benchmark.

Prometheus was using 3.5GB of RAM during the benchmark, while VictoriaMetrics was using 400MB of RAM.
 2019-11-18 18:45:06 +02:00
Aliaksandr Valialkin
2ab4cea5e5 lib/storage: always start using per-day inverted index on the next day after its creation 
The current day could miss entries for already stopped time series before
enabling per-day index.

This fixes the issue when queries return empty results during the first hour after
upgrading to v1.29.*
 2019-11-16 12:11:25 +02:00
Aliaksandr Valialkin
119dfd01bb lib/storage: add vm_cache_size_bytes{type="storage/hour_metric_ids"} metric 2019-11-13 20:24:21 +02:00
Aliaksandr Valialkin
86a1cd700b lib/storage: remove inmemory index for recent hour, since it uses too much memory 
Production workload shows that the index requires ~4Kb of RAM per active time series.
This is too much for high number of active time series, so let's delete this index.

Now the queries should fall back to the index for the current day instead of the index
for the recent hour. The query performance for the current day index should be good enough
given the 100M rows/sec scan speed per CPU core.
 2019-11-13 17:58:07 +02:00
Aliaksandr Valialkin
33895d4a0f lib/storage: add missing increment for recentHourInvertedIndexSearchCalls 2019-11-13 15:13:51 +02:00
Aliaksandr Valialkin
c57eb0ff83 lib/storage: add -disableRecentHourIndex flag for disabling inmemory index for recent hour 
This may be useful for saving RAM on high number of time series aka high cardinality
 2019-11-13 15:02:51 +02:00
Aliaksandr Valialkin
e14ab14e54 lib/storage: verify marshaling for iidx.pendingMetricIDs in TestInmemoryInvertedIndexMarshalUnmarshal 2019-11-13 13:35:30 +02:00
Aliaksandr Valialkin
ca259864e2 lib/storage: return back inmemory inverted index for recent hour 
Issues fixed:
- Slow startup times. Now the index is loaded from cache during start.
- High memory usage related to superflouos index copies every 10 seconds.
 2019-11-13 13:11:04 +02:00
Aliaksandr Valialkin
01bb3c06c7 lib/storage: remove inmemory inverted index for recent hours 
Production load with >10M active time series showed it could
slow down VictoriaMetrics startup times and could eat
all the memory leading to OOM.

Remove inmemory inverted index for recent hours until thorough
testing on production data shows it works OK.
 2019-11-13 10:45:53 +02:00
Aliaksandr Valialkin
6c2303764e Revert "lib/fs: do not postpone directory removal on NFS error" 
This reverts commit 4c02e496f7.

Reason for revert: the commit breaks on NFS - see https://github.com/VictoriaMetrics/VictoriaMetrics/issues/234
 2019-11-12 16:18:09 +02:00
Mike Poindexter
f3ad330635 Add test for invalid caching of tsids (#232) 
* Add test for invalid caching of tsids

* Clean up error handling
 2019-11-12 15:09:33 +02:00
Oleg Kovalov
b4f44befa3 fix misspelled words (#229) 2019-11-12 00:16:42 +02:00
Aliaksandr Valialkin
8e8f98f712 lib/storage: add tests for dateMetricIDCache 2019-11-11 13:21:57 +02:00
Aliaksandr Valialkin
c342f5e37e lib/storage: eliminate data race when updating lastSyncTime in dateMetricIDCache.Has 2019-11-10 22:04:01 +02:00
Aliaksandr Valialkin
4c02e496f7 lib/fs: do not postpone directory removal on NFS error 
Continue trying to remove NFS directory on temporary errors for up to a minute.

The previous async removal process breaks in the following case during VictoriaMetrics start

- VictoriaMetrics opens index, finds incomplete merge transactions and starts replaying them.
- The transaction instructs removing old directories for parts, which were already merged into bigger part.
- VictoriaMetrics removes these directories, but their removal is delayed due to NFS errors.
- VictoriaMetrics scans partition directory after all the incomplete merge transactions are finished
  and finds directories, which should be removed, but weren't still removed due to NFS errors.
- VictoriaMetrics panics when it finds unexpected empty directory.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/162
 2019-11-10 13:24:51 +02:00
Aliaksandr Valialkin
3956003dd0 lib/storage: reorganize the code in getStartDateForPerDayInvertedIndex according to golangci-lint 2019-11-10 00:38:59 +02:00
Aliaksandr Valialkin
ee7765b10d lib/storage: implement per-day inverted index 2019-11-10 00:02:46 +02:00
Aliaksandr Valialkin
5810ba57c2 lib/storage: use specialized cache for (date, metricID) entries 
This improves ingestion performance.
 2019-11-09 23:06:11 +02:00
Aliaksandr Valialkin
e573ef2126 lib/storage: remove unused code from getMetricIDsForTimeRange: it is expected that time range is always non-zero 2019-11-09 19:03:34 +02:00
Aliaksandr Valialkin
823fa085ef lib/storage: properly set time range when deleting time series 2019-11-09 18:49:49 +02:00
Aliaksandr Valialkin
695c1dc5eb lib/storage: obtain all the time series ids from (tag->metricIDs) rows instead of (metricID->TSID) rows, since this much faster 2019-11-09 18:04:33 +02:00
Aliaksandr Valialkin
cdbe848102 lib/storage: small code prettifying 2019-11-09 14:19:52 +02:00
Aliaksandr Valialkin
5c25070556 lib/uint64set: remove superflouos check for item existence before deleting it in Set.Subtract 2019-11-09 14:19:47 +02:00
Aliaksandr Valialkin
bb08bab263 lib/storage: inmemoryInvertedIndex prettifying 2019-11-09 14:19:41 +02:00
Aliaksandr Valialkin
6ad7fe8eeb lib/storage: export vm_new_timeseries_created_total metric for determining time series churn rate 2019-11-08 21:21:07 +02:00
Aliaksandr Valialkin
9ea549ed24 lib/storage: sync with cluster changes 2019-11-08 21:21:07 +02:00
Aliaksandr Valialkin
d888b21657 lib/storage: add inmemory inverted index for the last hour 
It should improve performance for `last N hours` dashboards with update intervals smaller than 1 hour.
 2019-11-08 21:21:07 +02:00
Aliaksandr Valialkin
1e46961d68 app/{vmbackup,vmrestore}: add vmbackup and vmrestore tools for creating backups on s3 or gcs from instant snapshots 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/203
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/38
 2019-11-08 21:21:07 +02:00
Aliaksandr Valialkin
543dc8d337 lib/storage: populate partition names from both small and big directories 
Certain partition directories may be missing after restoring from backups
if they had no data. Re-create such directories on start.
 2019-11-06 19:49:34 +02:00
Aliaksandr Valialkin
e472f0b23b lib/storage: substitute error message about unsorted items in the index block after metricIDs merge with counter 
The origin of the error has been detected and documented in the code,
so it is enough to export a counter for such errors at `vm_index_blocks_with_metric_ids_incorrect_order_total`,
so it could be monitored and alerted on high error rates.

Export also the counter for processed index blocks with metricIDs - `vm_index_blocks_with_metric_ids_processed_total`,
so its' rate could be compared to `rate(vm_index_blocks_with_metric_ids_incorrect_order_total)`.
 2019-11-06 14:28:11 +02:00
Aliaksandr Valialkin
c51ca04a43 lib/storage: take into account the requested time range when caching TSIDs for the given tag filters 2019-11-06 14:28:11 +02:00
Aliaksandr Valialkin
e37f06dc52 lib/storage: dump incorrectly sorted items on a single line; this should simplify error reporting 2019-11-05 18:44:22 +02:00
Aliaksandr Valialkin
5c2099ecfe lib/storage: return back finalPartsToMerge from 2 to 3 in order to prevent from excessive merges in old partitions 2019-11-05 17:27:48 +02:00
Aliaksandr Valialkin
885ba17905 lib/storage: separate the max inverted index scan loops per metric into fast and slow loops 
Slow loops could require seeks and expensive regexp matching, while fast loops just scans
all the metricIDs for the given `tag=value` prefix. So these operations must have separate
max loops multiplier.
 2019-11-05 17:27:48 +02:00
Aliaksandr Valialkin
b9a06e8e74 lib/storage: skip repeated useless work when intersection of metricIDs with the given filter is too expensive 
This should improve performance for query filters over big number of time series.
 2019-11-05 14:19:13 +02:00
Aliaksandr Valialkin
30c8301b11 lib/storage: reduce the maximum inverted index scans before giving up to label filters matching by metric name 
The new value reduces the amount of wasted work during index scans over big number of time series.
 2019-11-05 14:19:06 +02:00
Aliaksandr Valialkin
e53f9e553d lib/storage: try potentially faster tag filters at first, then apply slower tag filters 
The fastest tag filters are non-negative non-regexp, since they are the most specific.
The slowest tag filters are negative regexp, since they require scanning
all the entries for the given label.
 2019-11-05 14:19:01 +02:00
Aliaksandr Valialkin
3c90d77858 lib/storage: pass pointer to MetricName in Fatalf, so it is properly detected as an interface with String() method 
This fixes lint errors
 2019-11-04 01:07:19 +02:00
Artem Navoiev
478767d0ed add unittests for bytesutil and storage (#221) 2019-11-04 00:54:46 +02:00
Aliaksandr Valialkin
02e0b19a62 lib/storage: tune the returned value from adjustMaxMetricsAdaptive 2019-11-04 00:44:37 +02:00
Aliaksandr Valialkin
6be4456d88 lib/{storage,uint64set}: add Set.Union() function and use it 2019-11-04 00:44:37 +02:00
Aliaksandr Valialkin
9becc26f4b lib/storage: remove interface conversion in hot path during block merging 
This should improve merge speed a bit for parts with big number of small blocks.
 2019-11-03 12:33:34 +02:00
Aliaksandr Valialkin
c62399eb3e lib/{storage,mergeset}: create missing partition directories after restoring from backups 
Backup tools could skip empty directories. So re-create such directories on the first run.
 2019-11-02 02:27:11 +02:00
Aliaksandr Valialkin
55d728c849 lib/{decimal,encoding}: optimize float64<->decimal conversion for arrays with zeros or ones 
Time series with only zeros or ones frequently occur in monitoring, so it is worth optimizing their handling.
 2019-11-01 16:48:12 +02:00
Aliaksandr Valialkin
808fc0971f lib/{encoding,decimal}: add benchmarks for blocks containing zeros or ones 
Time series with such values are quite common in monitoring space,
so it would be great to have benchmarks for them.
 2019-11-01 16:48:12 +02:00
Aliaksandr Valialkin
370cfbb365 lib/uint64set: return an emptry set instead of nil set from Set.Clone, since the caller may add data to the cloned set 
This fixes the following panic in v1.28.1:

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0x783a7e]

goroutine 1155 [running]:
github.com/VictoriaMetrics/VictoriaMetrics/lib/uint64set.(*Set).Add(0x0, 0x15b3bfb41e8b71ec)
  github.com/VictoriaMetrics/VictoriaMetrics@/lib/uint64set/uint64set.go:57 +0x2e
github.com/VictoriaMetrics/VictoriaMetrics/lib/storage.(*indexSearch).getMetricIDsForRecentHours(0xc5bdc0dd40, 0x16e273f6b50, 0x16e2745d3f0, 0x5b8d95, 0x10, 0x4a2f51, 0xaa01000000000000)
  github.com/VictoriaMetrics/VictoriaMetrics@/lib/storage/index_db.go:1951 +0x260
github.com/VictoriaMetrics/VictoriaMetrics/lib/storage.(*indexSearch).getMetricIDsForTimeRange(0xc5bdc0dd40, 0x16e273f6b50, 0x16e2745d3f0, 0x5b8d95, 0x10, 0xb296c0, 0xc00009cd80, 0x9bc640)
 2019-11-01 16:12:44 +02:00
Aliaksandr Valialkin
d18ea0c95b app/vmstorage: add -bigMergeConcurrency and -smallMergeConcurrency flags for tuning the maximum number of CPU cores used during merges 2019-10-31 16:19:13 +02:00
Aliaksandr Valialkin
e0b292c6de lib/storage: small cleanup in Storage.add 2019-10-31 14:30:34 +02:00
Aliaksandr Valialkin
e76e21e4c7 lib/decimal: speed up FromFloat for common case with integers 2019-10-31 13:24:59 +02:00
Aliaksandr Valialkin
cfa5e279c2 lib/decimal: increase float64->decimal conversion precision a bit 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/213
 2019-10-30 02:04:56 +02:00
Aliaksandr Valialkin
26d570bb3a lib/storage: get parts to merge after applying the limit on the number of concurrent merges 
This should reduce write amplification under high ingestion rate.
 2019-10-30 02:04:56 +02:00
Aliaksandr Valialkin
2e2eff90d5 lib/{mergeset,storage}: limit the maximum number of concurrent merges; leave smaller number of parts during final merge 2019-10-29 12:45:28 +02:00