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Author SHA1 Message Date
Aliaksandr Valialkin
1a19702d92 lib/storage: make sure that nobody uses partitions when closing the table 2021-02-17 15:02:18 +02:00
Aliaksandr Valialkin
3062ff0fdb app/vmselect: export per-tenant stats on the number of requests and the cumulative request duration 
The metrics are:
- vm_vmselect_http_requests_total{accountID="...",projectID="..."} - the total number of select requests per each tenant
- vm_vmselect_http_duration_ms_total{accountID="...",projectID="..."} - the total duration in milliseconds for per-tenant select requests

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/932
 2021-02-16 23:30:29 +02:00
Aliaksandr Valialkin
3b8596bfec lib/httpserver: make errcheck happy 2021-02-16 22:05:59 +02:00
Aliaksandr Valialkin
1ab7a8dfd5 lib/storage: more tuning for tag filters sorting according the time they take 2021-02-16 21:27:27 +02:00
Aliaksandr Valialkin
35a23234ca lib/mergeset: tune lifetime for entries inside block caches 
This should reduce memory usage in general case without significant CPU usage increase
 2021-02-16 18:12:32 +02:00
Aliaksandr Valialkin
500acb958c lib/mergeset: clarify comments in the code a bit 2021-02-16 18:03:11 +02:00
Aliaksandr Valialkin
da05c10544 lib/uint64set: remove memory allocation in bucket16.appendTo when sorting smallPool 2021-02-16 15:31:59 +02:00
Aliaksandr Valialkin
18305caadb lib/httpserver: cache /metrics output for a second 
This should reduce CPU load when `/metrics` output is scraped with a frequency exceeding a request per second
 2021-02-16 14:57:13 +02:00
Aliaksandr Valialkin
7869d38043 lib/protoparser/influx: make sure that escaped whitespace can be put in measurement, tag names and field names 2021-02-16 13:59:11 +02:00
Aliaksandr Valialkin
d788876a7a lib/mergeset: remove unused code after a4140de9e6 2021-02-16 13:40:29 +02:00
Aliaksandr Valialkin
55952f8f2e lib/storage: tune sorting for tag filters 2021-02-16 13:07:42 +02:00
Aliaksandr Valialkin
3eae03a337 lib/storage: increase match cost for negative tag filters, since they need to scan all the label pairs 2021-02-15 16:39:52 +02:00
Aliaksandr Valialkin
46e98ed490 vendor: update github.com/VictoriaMetrics/metrics from v1.13.1 to v1.14.0 
The new version switches from log-linear histograms to log-based histograms,
which provide up to 3.6 times better accuracy.
 2021-02-15 15:11:15 +02:00
Aliaksandr Valialkin
93ff866e91 lib/storage: reduce the minimum supported retention for inverted index from one month to one day 2021-02-15 15:11:15 +02:00
Aliaksandr Valialkin
5d5d310dcc lib/flagutil: prevent from integer overflow when parsing duration 2021-02-15 15:11:15 +02:00
Aliaksandr Valialkin
fccb481de2 lib/promscrape/discovery/kubernetes: add __meta_kubernetes_endpoints_label_* and __meta_kuberntes_endpoints_annotation_* labels to role: endpoints 
This syncs kubernetes SD with Prometheus 2.25
See 617c56f55a
 2021-02-15 02:51:36 +02:00
Aliaksandr Valialkin
54a09de037 lib/logger: explicitly import "time/tzdata" package for embedding tzdata into the app 
The approach with `timetzdata` build tag didn't work for GOARCH=arm and GOARCH=ppc64le
due to the issue https://github.com/golang/go/issues/44073#issuecomment-778854298
 2021-02-15 01:00:30 +02:00
Aliaksandr Valialkin
6f3bbf21b8 lib/storage: sort tag filters by actual execution time instead of by the number of matching time series 
This should improve query speed for queries with regexp filters matching small number of time series
on a label with big number of unique values.
 2021-02-15 00:19:46 +02:00
Aliaksandr Valialkin
9e3993c585 lib/storage: properly hanle regexp tag filters with dots, which can be converted to full string match filters. 
For example `{label=~"foo\.bar"}` should be converted to `{label="foo.bar"}`. Previously it has was mistakenly conveted to `{label="foo\.bar"}` .
This could result in missing time series for such tag filters.
 2021-02-14 23:39:19 +02:00
Aliaksandr Valialkin
18c2075159 lib/promscrape: remove vm_promscrape_scrapes_failed_per_url_total and vm_promscrape_scrapes_skipped_by_sample_limit_per_url_total metrics 
These metrics may result in big number of time series when vmagent scrapes thousands of targets and these targets constantly changes.

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

  scrape_samples_scraped > 0 if up == 0
 2021-02-12 05:23:27 +02:00
Aliaksandr Valialkin
4e645a5fd3 lib/storage: return back in-order applying of tag filters, since concurrently executing tag filters can result in CPU and RAM waste in common case 2021-02-10 22:43:07 +02:00
Aliaksandr Valialkin
eeb92eb7fc lib/storage: load metadata before loading indexdb, since indexdb depends on the metadata 2021-02-10 17:55:51 +02:00
Aliaksandr Valialkin
08f21d8761 app/vmstorage: export vm_composite_index_min_timestamp metric 2021-02-10 17:14:00 +02:00
Aliaksandr Valialkin
b27288f1b0 lib/storage: parallelize tag filters execution a bit 
This should reduce execution time when a query contains multiple tag filters and each such filter matches big number of time series.
 2021-02-10 16:32:27 +02:00
Aliaksandr Valialkin
4262c2f7c2 lib/storage: remove filter arg from getMetricIDsForDateTagFilter function 
The `filter` arg breaks the logic for sorting tag filters by the matching metrics,
which may result in non-optimal performance during time series search.
 2021-02-10 16:32:26 +02:00
Aliaksandr Valialkin
681dfb7485 lib/storage: fix inconsistencies in error logs 2021-02-10 16:32:21 +02:00
Aliaksandr Valialkin
148422bcba lib/storage: disable composite index usage when querying old data 2021-02-10 14:57:58 +02:00
Aliaksandr Valialkin
17d5a03f6e lib/storage: fix metric name match for composite filter 2021-02-10 01:27:34 +02:00
Aliaksandr Valialkin
fa0ef143b1 lib/storage: optimize search by label filters matching big number of time series 2021-02-10 00:46:17 +02:00
Aliaksandr Valialkin
5c9715a89a lib/storage: reduce lock contention in dateMetricIDCache when registering new time series for the current day 
This should help systems with multiple CPU cores
 2021-02-10 00:04:19 +02:00
Aliaksandr Valialkin
082eabf51e lib/fs: remove the code for tracking whether the given memory region is in page cache 
This code didn't give performance gains under production workload, so let's remove it in order to simplify the code.
 2021-02-09 16:51:11 +02:00
Aliaksandr Valialkin
afa9cf9c57 lib/mergeset: remove dead code left after a4140de9e6 2021-02-09 16:51:09 +02:00
Aliaksandr Valialkin
9ed7789fef optimize Storage.updatePerDateData() 2021-02-09 02:59:53 +02:00
Aliaksandr Valialkin
ea328b7391 lib/storage: skip deduplication when creating inmemory data blocks 
The deduplication will be performed later during merging such blocks.
 2021-02-09 02:26:16 +02:00
Aliaksandr Valialkin
7b7963a77f lib/mergeset: unconditionally cache indexdb blocks 
Production workloads show that indexdb blocks must be cached unconditionally for reducing CPU usage.
This shouldn't increase memory usage too much, since unused blocks are removed from the cache every two minutes.
 2021-02-09 00:49:59 +02:00
Aliaksandr Valialkin
e8ee9fa7fe app/vmstorage: export missing vm_cache_size_bytes metrics for indexdb and data caches 2021-02-09 00:49:58 +02:00
Aliaksandr Valialkin
2b36eb3d82 lib/cgroup: follow-up after b9bf3cbe3e 2021-02-08 16:01:26 +02:00
Nikolay
32603f57cc refactored cgroups limits, (#1061) 
adds tests, remove os.Exec
 2021-02-08 16:01:26 +02:00
Aliaksandr Valialkin
2dbb12563b lib/storage: optimize data ingestion in the beginning of every hour 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1046
 2021-02-08 12:04:51 +02:00
Aliaksandr Valialkin
1a6eb0c3cf lib/logger: exit the app if unsupported timezone value has been passed to -loggerTimezone 
While at it, clarify descrption for `-loggerTimezone` command-line flag.
 2021-02-07 23:33:35 +02:00
Aliaksandr Valialkin
c6a7288109 lib/storage: check for prevHourMetricIDs cache before falling back to checking for (date, metricID) entries during data ingestion 
This should reduce possible CPU usage spikes at the beginning of every hour.

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1046
 2021-02-04 18:46:23 +02:00
Aliaksandr Valialkin
b5eba70595 lib/httpserver: expose process_open_fds and process_max_fds metrics 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/402
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1037
 2021-02-04 16:42:32 +02:00
Nikolay
6fc2a8e544 fixes dockerswarm (#1053) 
fixes improper usage of host network services
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1028
 2021-02-04 15:57:41 +02:00
Aliaksandr Valialkin
8249f13104 app/vmselect,lib/storage: properly parse Graphite selectors with inner wildcards 
Example: foo{bar{x,yz},a[b-c],*de}
 2021-02-03 20:16:28 +02:00
Aliaksandr Valialkin
2976ec89b8 lib/storage: fix a bug, which breaks searching by Graphite wildcard filters 2021-02-03 20:15:50 +02:00
Aliaksandr Valialkin
45a63a1da9 sort orSuffixes in tagFilter.InitFromGraphiteQuery for faster seeks 2021-02-03 20:15:37 +02:00
Aliaksandr Valialkin
4b930b9ffe app/vmselect: add ability to set Graphite-compatible filter via {__graphite__="foo.*.bar"} syntax 2021-02-03 01:17:19 +02:00
Aliaksandr Valialkin
755b0998ce lib/promscrape: add vm_promscrape_service_discovery_duration_seconds metric 2021-02-02 16:16:51 +02:00
Aliaksandr Valialkin
4c59dbc127 lib/promscrape: add vm_promscrape_scrape_retries_total, vm_promscrape_discovery_retries_total and vm_promscrape_discovery_requests_total metrics 2021-02-01 20:06:16 +02:00
Aliaksandr Valialkin
e79799a784 lib/flagutil: typo fix in comment to ArrayInt.GetOptionalArgOrDefault() func 2021-02-01 14:42:15 +02:00
Aliaksandr Valialkin
fdf9de98f8 app/vmagent: add -remoteWrite.roundDigits command-line option for limiting the number of digits after the point for stored values 
This commit also adds --vm-round-digits command-line option to vmctl tool.
 2021-02-01 14:42:15 +02:00
Aliaksandr Valialkin
2c14c70903 lib/logger: initialize timezone by UTC in order to fix failing tests 2021-01-27 01:00:57 +02:00
Aliaksandr Valialkin
ffec5131ae lib/promscrape: export vm_promscrape_scrapes_failed_per_url_total and vm_promscrape_scrapes_skipped_by_sample_limit_per_url_total metrics 
These metrics could be useful for determining imporperly working scrape targets.
Note that these metrics are exported only for failing scrape targets. They aren't exposed for normally working targets.
 2021-01-27 00:40:39 +02:00
Aliaksandr Valialkin
4b324da947 all: consistently use timers from timerpool 2021-01-27 00:40:39 +02:00
Aliaksandr Valialkin
588090765c lib/fs: properly initialize cleaner for pageCache bitmaps 
Previously it wasnt working because the timer was fired only once
 2021-01-27 00:40:39 +02:00
Aliaksandr Valialkin
68a66be811 lib/logger: add -loggerTimezone command-line flag for adjusting timezone for timestamps in log messages 2021-01-26 22:53:25 +02:00
Aliaksandr Valialkin
fdced59278 lib/promscrape: retry scrape and service discovery requests when the remote server closes http keep-alive connection 2021-01-22 13:22:59 +02:00
faceair
cf76d8dd79 lib/mergeset: add missing shouldCacheBlock (#1019) 2021-01-15 11:47:25 +02:00
Aliaksandr Valialkin
81789da731 lib/backup: increase backup chunk size from 128MB to 1GB 
This should reduce costs for object storage API calls by 8x. See https://cloud.google.com/storage/pricing#operations-pricing
 2021-01-13 12:16:39 +02:00
Nikolay
095be83f2f bumps minimal tls version (#1012) 2021-01-13 00:39:09 +02:00
Aliaksandr Valialkin
3d79471fb3 lib/storage: inline marshalTags function and remove the code for handling duplicate tags from here 
This is a follow-up commit after c8ea697db8
 2021-01-12 15:20:22 +02:00
Aliaksandr Valialkin
719ad49adf lib/storage: de-duplicate tags in MetricName.sortTags 
Leave only the last tag among tags with duplicate keys. This is needed for reliable addition of extra_labels
during data ingestion. See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1007 for details.
 2021-01-12 15:03:22 +02:00
Nikolay
9f0a4fd00e Fixes error handling for promscrape.streamParse (#1009) 
properly return error if client cannot read data,
properly suppress scraper errors
 2021-01-12 13:35:09 +02:00
Aliaksandr Valialkin
c97681b45c lib/promscrape: properly show scrape duration on /targets page 
Previously it has been shown as 0.000s for any scrape duration.
 2021-01-11 21:15:50 +02:00
Aliaksandr Valialkin
4ee53c3961 all: use net.Dial instead of fasthttp.Dial, because fasthttp.Dial limits the number of concurrent dials to 1000 2021-01-11 12:52:51 +02:00
Aliaksandr Valialkin
d5a2b120e9 app/vmstorage: disable final merge by default, since it may result in high disk IO and CPU usage without measurable benefits such as increased query performance and reduced disk space usage 2021-01-08 00:12:12 +02:00
Aliaksandr Valialkin
ca8919e8e1 lib/storage: wait for pending transactions before closing and dropping the partition 
This deflakes `make test-full-386` test
 2020-12-25 11:46:47 +02:00
Aliaksandr Valialkin
c0511144e3 lib/storage: physically remove stale parts 
Previously they were removed from partition struct, but the corresponding directories weren't removed.

This is a follow-up for 46dba00756
 2020-12-24 16:56:09 +02:00
Nikolay
dd2f815204 fixes kubernetes_sd (#983) 
* fixes kubernetes_sd,
adds missing service metadata for pod ports without endpoint
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/982

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

* fixes imports
 2020-12-24 10:57:19 +02:00
Aliaksandr Valialkin
66f8fbbb32 lib/storage: do not remove parts outside the configured retention if they are currently merged 
These parts are automatically removed after the merge is complete.
 2020-12-24 09:02:12 +02:00
Aliaksandr Valialkin
fa3bcf220f lib/storage: remove stale parts as soon as they go outside the configured retention 
Previously such parts could remain undeleted for long durations until they are merged with other parts.
This should help for `-retentionPeriod` values smaller than one month.
 2020-12-22 19:55:07 +02:00
Aliaksandr Valialkin
6859737329 lib/storage: properly determine max rows for output part when merging small parts 2020-12-18 23:26:28 +02:00
Aliaksandr Valialkin
edbe35509e lib/{storage,mergeset}: tune background merge process in order to reduce CPU usage and disk IO usage 2020-12-18 20:01:20 +02:00
Aliaksandr Valialkin
1ee5a234dc lib/promscrape: remove ID field from ScrapeWork struct. Use a pointer to ScrapeWork as a key in targetStatusMap 
This simplifies the code a bit.
 2020-12-17 14:31:55 +02:00
Aliaksandr Valialkin
4fd2973e7c lib/protoparser/prometheus: follow-up commit after 7d38627b9f6f212ae602aea6a72f469fe3c70ba2 
Document the bugfix in docs/CHANGELOG.md and add a test for the bugfix.
 2020-12-16 23:42:17 +02:00
BigFish
60dd48c9eb lib/protoparser/prometheus/parser.go (#970) 
fix parse timestamp error if there are some whitespaces after timestamp
 2020-12-16 23:42:16 +02:00
Aliaksandr Valialkin
c4ec977934 lib/promscrape: properly remove deleted target from /targets page 
Previously `sw` variable wasn't captured correctly by the started goroutine.
 2020-12-15 20:58:37 +02:00
Aliaksandr Valialkin
eddc2bd017 lib/promscrape: properly handle scrape errors when stream parsing is enabled 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/967
 2020-12-15 14:10:52 +02:00
Nikolay
7064c4eb8e adds new Array Flags (#965) 
* adds ArrayDuration and ArrayBool flags,
makes sendTimeout and tlsInsecure configurable per remoteWrite url

* added backward compatibility testcases for ArrayDuration and ArrayBool

* fixes bool flag

* fixes test cases
 2020-12-15 12:59:33 +02:00
Aliaksandr Valialkin
104aac170e lib/promscrape: add bootstrap styles to /targets html page 2020-12-15 12:38:29 +02:00
Aliaksandr Valialkin
ad961fe1f1 lib/promscrape: formatting fixes for /tarets page 2020-12-15 11:59:28 +02:00
Aliaksandr Valialkin
38145cfbb8 lib/promscrape: formatting fixes for /targets page 2020-12-15 11:27:22 +02:00
Aliaksandr Valialkin
d98a2f217b lib/persistentqueue: verify that ReaderOffset doesnt exceed WriterOffset when opening the persistent queue 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/964
 2020-12-14 19:25:53 +02:00
Aliaksandr Valialkin
b904ae3722 lib/promscrape: add missing whitespace between duration and ago word at /targets page 2020-12-14 14:20:30 +02:00
Aliaksandr Valialkin
a2eb451de4 app/{vmagent,vminsert}: follow-up for ce8c2dd1f1: return /targets page in HTML when requested via web browser 2020-12-14 14:13:01 +02:00
Nikolay
324e3aa1a5 Changes targets api (#961) 
* changes /targets api
adds html response if requester accepts text/html,
adds quick template for /targets api,
fixes pathPrefix for / requests

* changes namings

* renamed targets file

* Update app/victoria-metrics/main.go

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

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

* fixes bug with prefix

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

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/574#issuecomment-740454170
 2020-12-08 21:53:23 +02:00
Aliaksandr Valialkin
1a237c6903 all: properly handle CPU limits set on the host system/container 
This can reduce memory usage on systems with enabled CPU limits.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/946
 2020-12-08 21:07:03 +02:00
Aliaksandr Valialkin
38188e1d6b lib/promscrape: store ScrapeWork items by pointer in the slice returned from get*ScrapeWork() 
This should prevent from possible 'memory leaks' when a pointer to ScrapeWork item stored in the slice
could prevent from releasing memory occupied by all the ScrapeWork items stored in the slice when they
are no longer used.

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

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/944
 2020-12-07 13:18:16 +02:00
Aliaksandr Valialkin
9d79d11a6c lib/promscrape: mention in scrape error message that scrape errors can be disabled by -promscrape.suppressScrapeErrors command-line flag 2020-12-06 23:27:07 +02:00
Aliaksandr Valialkin
f6d32f99d7 lib/promscrape: clarify error message on failed connection to scrape target when -enableTCP6 command-line flag isn't set 2020-12-06 13:19:32 +02:00
Aliaksandr Valialkin
3d00613076 lib/protoparser/influx: allow multiple whitespace chars between measurement, fields and timestamp in Influx line protocol 2020-12-06 12:00:28 +02:00
Aliaksandr Valialkin
1430bbcf33 lib/promscrape/discoveryutils: remove limit on the number of concurrently running blocking queries 
Too low limit could result in unexpected errors when performing big number of blocking queries.
 2020-12-05 12:15:47 +02:00
Aliaksandr Valialkin
528587deef lib/flagutil: make golangci-lint happy by using strings.TrimPrefix instead of manual prefix removal via strings.HasPrefix 2020-12-03 22:07:26 +02:00
Aliaksandr Valialkin
bdac2171f1 all: do not print usage info for all the flags when incorrect command-line flag is passed 
This should improve usability for VictoriaMetrics apps that have big number of command-line flags,
i.e. all the apps.
 2020-12-03 21:46:19 +02:00
Aliaksandr Valialkin
96190f9d45 lib/promscrape/discovery/consul: log the time needed for stoppig Consul service watcher 2020-12-03 20:14:48 +02:00
Aliaksandr Valialkin
4e4a93c586 lib/promscrape/discovery/consul: make sure that block response contains X-Consul-Index header 2020-12-03 20:05:54 +02:00
Aliaksandr Valialkin
7a889f6850 lib/promscrape: code cleanup after c6dee6c52d 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/574
 2020-12-03 19:52:09 +02:00
Nikolay
0b302d33cb Changes consul discovery api (#921) 
* adds consul watch api,
it must reduce load on consul service with blocking wait requests,
changed discoveryClient api with fetchResponseMeta callback.

* small fix

* fix after master merge

* adds watch client at discovery utils

* fixes consul watcher,
changes namings,
fixes data race

* small typo fix

* sanity fix

* fix naming and service node update
 2020-12-03 19:52:08 +02:00
Aliaksandr Valialkin
9eca96596f lib/storage: add missing (AccountID, ProjectID) in MetricName.String() test 2020-11-29 01:25:50 +02:00
Aliaksandr Valialkin
2385ac11c0 lib/promscrape: fix failing tests after a906b3862f 2020-11-29 01:25:49 +02:00
Aliaksandr Valialkin
2ed721e457 lib/protoparser/prometheus: properly parse OpenMetrics timestamps 
OpenMetrics timestamps are floating-point numbers, that represent Unix timestamp in seconds.
This differs from Prometheus exposition format, where timestamps are integer numbers representing Unix timestamp in milliseconds.
 2020-11-27 14:54:36 +02:00
Aliaksandr Valialkin
3bb9bf33d6 lib/promscrape: reduce memory allocations when unpacking gzipped responses received from scrape targets 2020-11-26 18:32:16 +02:00
Aliaksandr Valialkin
af667c59c1 all: typo fix: thouthand->thousand 2020-11-26 13:34:05 +02:00
Aliaksandr Valialkin
3dd2282ed9 lib/promscrape: release http response non-200 status code 2020-11-26 13:25:25 +02:00
Aliaksandr Valialkin
3f52e59efe app/{vmagent,victoria-metrics}: add -dryRun option and make more clear handling for -promscrape.config.dryRun 2020-11-25 23:01:39 +02:00
Aliaksandr Valialkin
8f8727cb65 lib/mergeset: tune the number of rawItemsBlocks to merge at once 
512 blocks give higher ingestion performance and slightly lower memory usage
 2020-11-25 21:53:15 +02:00
Aliaksandr Valialkin
8fcd87a6a5 lib/mergeset: help GC by removing refereces to slices in inmemoryBlock.Reset 2020-11-25 21:20:02 +02:00
Aliaksandr Valialkin
03002f1fe1 lib/storage: log metric name plus all its labels when the metric timestamp is outside the configured retention 
This should simplify debugging when the source of the metric with unexpected timestamp must be found.
 2020-11-25 14:44:29 +02:00
Aliaksandr Valialkin
4848a05924 lib/storage: typo fix in error message: allowd->allowed 2020-11-25 14:15:54 +02:00
Aliaksandr Valialkin
26e699c440 lib/protoparser/prometheus: properly parse "infinity" values in OpenMetrics format 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/924
 2020-11-24 19:02:50 +02:00
Aliaksandr Valialkin
a8b5a6e517 lib/logger: disable rate limiting for error and warn logs by default 2020-11-24 12:42:07 +02:00
Aliaksandr Valialkin
7f3e884a31 all: spelling fix: superflouos->superfluous. This is a follow-up for 0acdab3ab9 2020-11-24 12:42:04 +02:00
Aliaksandr Valialkin
dad8b76a0e lib/protoparser/prometheus: properly parse metrics with exemplars 
Examplars have been introduced in OpenMetrics - see https://github.com/OpenObservability/OpenMetrics/blob/master/OpenMetrics.md#exemplars-1
Previously VictoriaMetrics couldn't parse the following metric

    foo{bar="baz"} 123 # exemplar here

This commit fixes this. Note that VictoriaMetrics ignores the exemplar as for now.
 2020-11-24 12:30:34 +02:00
Aliaksandr Valialkin
8b82f9d8b8 lib/promscrape: expose __meta_ec2_ipv6_addresses label for ec2_sd_config like Prometheus will do in the next release 2020-11-23 16:57:03 +02:00
Aliaksandr Valialkin
c2186279b7 lib/promscrape: add filters option to dockerswarm_sd_config like Prometheus did in v2.23.0 2020-11-23 16:27:33 +02:00
Aliaksandr Valialkin
f4fd917e4f lib/fs: replace fs.OpenReaderAt with fs.MustOpenReaderAt 
All the callers for fs.OpenReaderAt expect that the file will be opened.
So it is better to log fatal error inside fs.MustOpenReaderAt instead of leaving this to the caller.
 2020-11-23 09:57:30 +02:00
Aliaksandr Valialkin
d892d63204 lib/promscrape: hint that -enableTCP6 command-line flag can be used for connecting to IPv6 addresses 2020-11-21 14:39:05 +02:00
Aliaksandr Valialkin
8608e956dd lib/promscrape/discovery/eureka: follow-up after eec76718e9 2020-11-20 14:02:14 +02:00
Nikolay
bb2bcb9725 Adds eureka service discovery (#913) 
* Adds eureka service discovery
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/851
Netflix service discovery for AWS

* Apply suggestions from code review

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2020-11-20 14:02:13 +02:00
Aliaksandr Valialkin
8e1f657ef9 lib/logger: follow-up for 09105ff49c 2020-11-19 12:37:05 +02:00
Nikolay
f54a5f3868 Adds log suppression per caller (#908) 
* Adds log suppression per caller
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/905

* fixes style and report message
 2020-11-19 12:19:20 +02:00
Aliaksandr Valialkin
0895b7f411 lib/logger: add -loggerWarnsPerSecondLimit command-line flag for rate limiting of WARN log messages 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/905
 2020-11-18 03:43:17 +02:00
Aliaksandr Valialkin
7d76fdedcc app/vmselect: use storage.NewSearchQuery() instead of constructing storage.SearchQuery in-place 
This should prevent from bugs when AccountID and ProjectID aren't set in storage.SearchQuery.
 2020-11-16 18:04:33 +02:00
Aliaksandr Valialkin
a9287cf564 lib/storage: do not pass (accountID, projectID) to SearchTagNames(), since they are already passed via tfss 2020-11-16 18:04:30 +02:00
Aliaksandr Valialkin
ac7460abdd lib/storage: add a test for Storage.SearchMetricNames 2020-11-16 13:18:48 +02:00
Aliaksandr Valialkin
eea1be0d5c app/vmselect/graphite: add /tags/findSeries handler from Graphite Tags API 
See https://graphite.readthedocs.io/en/stable/tags.html#exploring-tags
 2020-11-16 12:52:23 +02:00
Aliaksandr Valialkin
4be5b5733a app/vminsert: add /tags/tagSeries and /tags/tagMultiSeries handlers from Graphite Tags API 
See https://graphite.readthedocs.io/en/stable/tags.html#adding-series-to-the-tagdb
 2020-11-16 02:40:04 +02:00
Aliaksandr Valialkin
9ec964bff8 lib/storage: do not show artifically created label for reverse Graphite labels at /api/v1/labels page 2020-11-16 00:44:54 +02:00
Aliaksandr Valialkin
f80d6473e1 lib/protoparser/promremotewrite: log the time spent on unsuccessful data read from the network 
This should help with debugging `connection timed out` errors.
 2020-11-13 17:49:21 +02:00
Vasily
8ba168f3be
Add omitempty for DisableCompression and DisableKeepAlive fields in ScrapeConfig (#796) 
* Add omitempty for DisableCompression and DisableKeepAlive fields in ScrapeConfig

* Add omitempty annotation to all the default/optional values

* Fix annotations after review
 2020-11-13 16:17:03 +02:00
Aliaksandr Valialkin
d21b1606a1 lib/protoparser/opentsdbhttp: increment errors counter on unmarshal errors 
This is a follow-up for 149c0c4a6d
 2020-11-13 13:23:11 +02:00
Aliaksandr Valialkin
22c1e29284 lib/protoparser: propagate callback error to the caller of ParseStream for every supported data ingestion protocols 
The caller of ParseStream then can generate HTTP 503 responses for non-nil errors occured in callbacks when processing incoming requests.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/896
 2020-11-13 13:05:34 +02:00
Aliaksandr Valialkin
9dfe00c962 lib/protoparser/promremotewrite: synchronously process Prometheus remote_write requests 
There is no reason in processing these requests asynchronously in the face of https://github.com/VictoriaMetrics/VictoriaMetrics/issues/896
Synchronous processing code is easier to read and understand than the previous async code
 2020-11-13 12:17:32 +02:00
Aliaksandr Valialkin
739b88c1e4 lib/protoparser/promremotewrite: forward errors, which can occur during data ingestion, to the caller of ParseStream, so it could properly return HTTP 503 status code on non-nil error 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/896
 2020-11-13 11:00:41 +02:00
Aliaksandr Valialkin
7ceaf4ba8f all: consistently return text-based HTTP responses with charset=utf-8 
This is a follow-up for https://github.com/VictoriaMetrics/VictoriaMetrics/pull/897
 2020-11-13 10:30:21 +02:00
immerrr again
1ec1a9f27f app/vmstorage: add "/internal/force_flush" endpoint (#893) 2020-11-11 14:46:37 +02:00
Aliaksandr Valialkin
697fd44158 lib/promscrape: make a copy of ScrapeWork from discovered []ScrapeWork slice instead of referring to an item in this slice 
This should prevent from holding previously discovered []ScrapeWork slices when a part of discovered targets changes over time.
This should reduce memory usage for the case when big number of discovered scrape targets changes over time.

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

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825
 2020-11-07 16:19:52 +02:00
Aliaksandr Valialkin
b4efe626d7 lib/promscrape/discovery/kubernetes: go fmt 2020-11-07 13:04:09 +02:00
Aliaksandr Valialkin
92bc1afcee lib/promscrape/discovery/kubernetes: reduce memory usage for labels when discovering big number of scrape targets by using string concatenation instead of fmt.Sprintf 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825
 2020-11-07 13:03:01 +02:00
Aliaksandr Valialkin
535fea3d11 lib/promscrape: eliminate data race in stream parse mode 
Previously `-promscrape.streamParse` mode could result in garbage labels for the scraped metrics because of data race.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825#issuecomment-723198247
 2020-11-07 12:45:52 +02:00
Aliaksandr Valialkin
72011bcc45 app/vmselect: properly handle errors in GetLabelsOnTimeRange and GetLabelValuesOnTimeRange 2020-11-05 01:36:34 +02:00
Aliaksandr Valialkin
f2bff64933 lib/storage: remove data race when updating rowsDeleted 2020-11-05 01:19:30 +02:00
Aliaksandr Valialkin
c5e6c5f5a6 app/vmselect: optimize querying for /api/v1/labels and /api/v1/label/<name>/values when start and end args are set 2020-11-05 01:19:29 +02:00
Nikolay
5b235b902b Adds ready probe (#874) 
* adds leading forward slash check for scrapeURL path
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/835

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

* updates docs

* Update app/vmagent/README.md

* renames var

* Update app/vmagent/README.md

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

* Update app/vmagent/README.md

* Update app/vmagent/README.md

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2020-11-04 17:13:33 +02:00
Aliaksandr Valialkin
c736339843 lib/{storage,mergeset}: clean cached index blocks and inmemory blocks more aggressively 
Previously such blocks were cleaned after they weren't accessed during 10 minutes.
Now they are cleaned after one minute of missing access. This should reduce memory usage in general case.
 2020-11-04 16:44:15 +02:00
Aliaksandr Valialkin
f35aafb6a5 Revert "lib/promscrape: add -promscrape.dropOriginalLabels command-line flag for reducing memory usage when discovering big number of scrape targets" 
This reverts commit b08c6f5144.
 2020-11-04 11:45:38 +02:00
Aliaksandr Valialkin
b08c6f5144 lib/promscrape: add -promscrape.dropOriginalLabels command-line flag for reducing memory usage when discovering big number of scrape targets 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/878
 2020-11-04 11:09:05 +02:00
Aliaksandr Valialkin
c046735571 lib/promscrape: reduce memory allocations in promLabelsString() function 
This should help with reducing memory usage in https://github.com/VictoriaMetrics/VictoriaMetrics/issues/878
 2020-11-04 10:38:59 +02:00
Aliaksandr Valialkin
c0bd208c77 lib/storage: do not report about the need of free disk space if parts cannot be merged due to too big write amplification 2020-11-03 15:32:09 +02:00
Aliaksandr Valialkin
1b9778a756 lib/storage: remove unneeded fmt.Sprintf 2020-11-03 14:21:04 +02:00
John Belmonte
8653e2658e add short_version label to vm_app_version metric (#877) 
* add short_version label to vm_app_version metric

use case:  Version panel of Grafana dashboard should use a live query, but currently it uses a template query which becomes stale.  Grafana is not able to preform regex substitution on labels.

* Update metrics.go

* fix compile
 2020-11-03 14:12:42 +02:00
Aliaksandr Valialkin
f3a7e6f6e3 lib/storage: remove obsolete code 2020-11-02 19:17:30 +02:00
Aliaksandr Valialkin
3ed9f1d5a9 lib/promscrape: properly handle response body after 301 redirect 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/869
 2020-11-02 01:09:59 +02:00
Nikolay
e8fe618bbb fixes panic at scrape error body formating, (#868) 
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/864
regression after body reuse improvements
 2020-11-01 23:25:23 +02:00
Nikolay
058f49de57 adds leading forward slash check for scrapeURL path (#855) 
* fixes in-consistency with prometheus behaviour for scrape targets url path.
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/835
 2020-11-01 23:22:16 +02:00
Aliaksandr Valialkin
ed724d25ba lib/promscrape: add stream parse mode for efficient scraping of targets that expose millions of metrics 2020-11-01 23:12:26 +02:00
Aliaksandr Valialkin
901514be88 lib/storage: drop more samples outside the given retention during background merge 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/17
 2020-10-31 20:44:47 +02:00
Aliaksandr Valialkin
abdf22e0bb app/vmagent: expose /api/v1/targets page according to https://prometheus.io/docs/prometheus/latest/querying/api/#targets 
This page is exposed by vmagent and by a single-node VictoriaMetrics

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/643
 2020-10-20 21:55:14 +03:00
Aliaksandr Valialkin
7599e5c835 lib/storage: properly handle the case when key="__name__" is passed to MetricName.AddTag* 2020-10-20 20:09:52 +03:00
Aliaksandr Valialkin
9c5cd5a6c5 lib/storage: code cleanup after 5bfd4e6218 2020-10-20 16:10:53 +03:00
Aliaksandr Valialkin
0db7c2b500 app/vmstorage: support for -retentionPeriod smaller than one month 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/173
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/17
 2020-10-20 14:42:46 +03:00
Aliaksandr Valialkin
5518b11720 lib/memory: do not print trailing zeroes in logs for -memory.allowedPercent command-line flag 2020-10-20 14:42:37 +03:00
faceair
0093ee3cd9 disable response compression on websocket (#841) 2020-10-17 13:33:37 +03:00
Aliaksandr Valialkin
efb1989193 lib/storage: small code adjustements after d2960a20e0 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/781
 2020-10-17 01:17:12 +03:00
faceair
8ddf089deb evaluate the execution cost of all tag filters (#824) 
* evaluate the execution cost of all tag filters

* fix suffixes typo
 2020-10-17 01:13:20 +03:00
Nikolay Khramchikhin
a5d842caf8 fixes openstack api endpoint with suffix trim adds openstack (#840) 
api v2.0 check

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/728
 2020-10-16 23:01:45 +03:00
Aliaksandr Valialkin
938b3b7ed1 lib/promscrape: code prettifying after 9bd9f67718 2020-10-12 16:13:59 +03:00
Nikolay Khramchikhin
7f96712b38 Adds dockerswarm sd (#818) 
* adds dockerswarm service discovery

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/656

 Following roles supported: services, tasks and nodes.
 Basic, token and tls auth supported.
 Added tests for labels generation.

* added unix socket support to discovery utils

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2020-10-12 16:13:58 +03:00
Aliaksandr Valialkin
de1c07b937 lib/backup: add MustStop() method for all remote filesystems 2020-10-09 15:32:13 +03:00
Aliaksandr Valialkin
bf6d523bef lib/backup/fslocal: add FS.MustStop() method for stopping bandwidth limiter 2020-10-09 15:11:55 +03:00
Aliaksandr Valialkin
d2e917d1cb app/vmstorage: add vm_rows_added_to_storage_total metric, which shows the total number of rows added to storage since app start 2020-10-09 13:36:17 +03:00
Aliaksandr Valialkin
a93c62cd60 lib/promscrape: fix tests after 71ea4935de 2020-10-08 19:32:48 +03:00
Aliaksandr Valialkin
0d44e371f3 lib/promscrape: add -promscrape.suppressDuplicateScrapeTargetErrors command-line flag in order to suppress duplicate scrape target errors 
Show also original labels for duplicate targets in error message in order to simplify debugging the issue.

Now `/targets` endpoint accepts optional `show_original_labels=1` query arg, which shows original labels for each target.
This may simplify debugging for target relabeling.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/651
 2020-10-08 18:59:25 +03:00
Aliaksandr Valialkin
ad0950f630 lib/backup/actions: improve logging to be more clear to humans 2020-10-08 14:23:00 +03:00
Aliaksandr Valialkin
b51fa16177 app/vmstorage: add -finalMergeDelay command-line flag for configuring the delay before final merge for per-month partitions after no new data is ingested to it 2020-10-07 17:42:31 +03:00
Aliaksandr Valialkin
54ff78c6c9 lib/protoparser/graphite: support parsing floating-point timestamp like Graphite does 
Such timestamps are rounded to seconds like Carbon does.
See b0ba62a62d/lib/carbon/protocols.py (L197)
 2020-10-06 11:38:35 +03:00
Aliaksandr Valialkin
1da41177a8 lib/promscrape/discovery/openstack: show expiration time for refreshed OpenStack token in seconds - this is easier to interpret by human 2020-10-06 11:20:36 +03:00
Aliaksandr Valialkin
97b836a6f4 lib/fs: fix GOOS=openbsd build by adding fadviseSequentialRead implementation. 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/785
 2020-10-05 23:32:28 +03:00
Aliaksandr Valialkin
50316070d6 lib/promscrape/discovery/openstack: code prettifying after cbe3cf683b 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/728
 2020-10-05 18:12:31 +03:00
Nikolay Khramchikhin
b4c77fc6d2 Adds openstack sd (#811) 
* adds openstack service discovery

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/728

 implemented hypervisors and instance discovery with openstack v3 api.
 Added tests for labeling and data parsing.
 Added token refresh.

* Apply suggestions from code review

* Apply suggestions from code review

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2020-10-05 16:48:54 +03:00
Aliaksandr Valialkin
7505e4f390 lib/promrelabel: make a copy of label with new name for action: labelmap in the same way as Prometheus does 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/812
 2020-10-05 16:20:22 +03:00
Aliaksandr Valialkin
9a7c863bd8 lib/protoparser/influx: add -influx.maxLineSize command-line flag for configuring the maximum size for a single Influx line during parsing 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/807
 2020-10-05 15:19:11 +03:00
Aliaksandr Valialkin
11ddb79aeb lib/decimal: add tests for negative values passed to maxUpExponent 2020-10-05 14:57:03 +03:00
Aliaksandr Valialkin
d448e07546 lib/decimal: properly calibrate scale for blocks with Inf values 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/805
 2020-10-05 14:52:59 +03:00
Aliaksandr Valialkin
fd7dd5064a lib/storage: code cleanup after 10f2eedee0 
Remove the code that uses metricIDs caches for the current and the previous hour during metricIDs search,
since this code became unused after implementing per-day inverted index almost a year ago.

While at it, fix a bug, which could prevent from finding time series with names containing dots (aka Graphite-like names
such as `foo.bar.baz`).
 2020-10-01 19:12:04 +03:00
Aliaksandr Valialkin
3ad7566a87 lib/storage: imrpove cache effectiveness for time series ids matching the given filters 
Previously the maximum cache lifetime has been limited by 10 seconds. Now it is extended up to a day.
This should reduce CPU usage in the following cases:

* when querying recently added data with small churn rate for time series
* when querying historical data
 2020-10-01 14:39:46 +03:00
Aliaksandr Valialkin
7c2e4e267a lib/storage: allow set values higher than 1 for vm_merge_need_free_disk_space if there are multiple partitions with deferred merges due to disk space shortage 2020-09-29 22:53:34 +03:00
Aliaksandr Valialkin
097a4c10dd app/vmstorage: add metrics for determining whether background merges need additional disk space to complete 
These metrics are:

* vm_small_merge_need_free_disk_space
* vm_big_merge_need_free_disk_space

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/686
 2020-09-29 21:47:47 +03:00
Aliaksandr Valialkin
5dca7bbe85 app/vmagent/remotewrite: do not show -remoteWrite.url in logs if -remoteWrite.showURL isn't set 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/773
 2020-09-29 19:49:19 +03:00
Aliaksandr Valialkin
5e998e597a lib/cgroup: do not adjust the number of detected CPU cores via /sys/devices/system/cpu/online 
The adjustement increases the resulting GOMAXPROC by 1, which looks confusing to users
as outlined at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/685#issuecomment-698595309
 2020-09-29 13:55:53 +03:00
Aliaksandr Valialkin
338a53ccf9 lib/storage: fix tests for 32-bit arches such as GOARCH=386 and GOARCH=arm 2020-09-29 13:10:37 +03:00
Aliaksandr Valialkin
ef416c72c2 lib/storage: fix 32-bit builds for GOARH=386 or GOARCH=arm 2020-09-29 12:42:25 +03:00
Aliaksandr Valialkin
0b0259c42c lib/protoparser/prometheus: sort rows before comparing them in TestParseStream, since the order for callback calls is non-deterministic 2020-09-29 12:29:50 +03:00
Aliaksandr Valialkin
8f25206d8c lib/protoparser/prometheus: fix TestParseStream after 124f78857b 2020-09-29 12:12:33 +03:00
Aliaksandr Valialkin
81cdf2fa14 lib/{fs,filestream}: small consistency-related updates after cc90a548b1 2020-09-29 00:43:20 +03:00
Nikolay Khramchikhin
658a05ef0f added openbsd implementations (#790) 
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/785

removed fadvise for openbsd, added freespace implemenation for openbsd
 2020-09-29 00:43:19 +03:00
Aliaksandr Valialkin
1481d6d8ff lib/protoparser: avoid copying of buffer read from the network to unmarshal buffer 2020-09-28 17:19:04 +03:00
Aliaksandr Valialkin
8df33bd5c1 app/{vminsert,vmagent}: improve data ingestion speed over a single connection 
Process data obtianed from a single connection on all the available CPU cores.
 2020-09-28 04:14:51 +03:00
Aliaksandr Valialkin
7072db75cb lib/protoparser: use 64KB read buffer instead of default 4KB buffer provided by net/http.Server 
This should reduce syscall overhead when reading big amounts of data
 2020-09-28 02:07:19 +03:00
Aliaksandr Valialkin
6d8c23fdbd app/{vminsert,vmselect}: skip accountID and projectID when marshaling/unmarshaling MetricName in /api/v1/export/native and /api/v1/import/native 
This is needed in order to be able to migrate native data from/to single-node VictoriaMetrics
 2020-09-28 00:58:58 +03:00
Aliaksandr Valialkin
aadbd014ff all: add native format for data export and import 
The data can be exported via [/api/v1/export/native](https://victoriametrics.github.io/#how-to-export-data-in-native-format) handler
and imported via [/api/v1/import/native](https://victoriametrics.github.io/#how-to-import-data-in-native-format) handler.
 2020-09-27 17:36:38 +03:00
Aliaksandr Valialkin
00ec2b7189 lib/protoparser: use all the available CPU cores for processing ingested data from a single /api/v1/import stream 
Previously a single data ingestion stream to /api/v1/import could load only a single CPU core.
 2020-09-26 04:22:06 +03:00
Aliaksandr Valialkin
533bf76a12 lib/storage: correctly use maxBlockSize in various checks 
Previously `maxBlockSize` has been multiplied by 8 in certain checks. This is unnecessary.
 2020-09-24 18:13:15 +03:00
Aliaksandr Valialkin
543f3aea97 all: consistently use "%w" formatting in fmt.Errorf for wrapped errors 2020-09-23 22:48:21 +03:00
Aliaksandr Valialkin
90d2549428 lib/persistentqueue: protect from multiple concurrent opening for the same persistent queue 2020-09-23 02:17:53 +03:00
Aliaksandr Valialkin
89d652b583 lib/cgroup: attempt to obtain available CPU cores via /sys/devices/system/cpu/online 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/685#issuecomment-674423728
 2020-09-22 23:27:26 +03:00
Aliaksandr Valialkin
31e341371b lib/storage: code prettifying after be5e1222f3 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/781
 2020-09-22 00:42:20 +03:00
faceair
ad41e39350 add filter to getMetricIDs (#783) 
* add getMetricIDs filter

* check nil filter before use
 2020-09-22 00:42:19 +03:00
Aliaksandr Valialkin
d32c3f747c lib/logger: add -loggerDisableTimestamps command-line flag for disabling timestamps in logs 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/778
 2020-09-21 19:25:50 +03:00
Aliaksandr Valialkin
f961838290 lib/promscrape/discovery/ec2: code prettifying after 312fead9a2 2020-09-21 18:44:04 +03:00
Nikolay Khramchikhin
0069353d5e Add improvements to ec2_sd_discovery (#775) 
* Add improvements to ec2 discovery

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/771

 role_arn support with aws sts
 instance iam_role support
 refreshing temporary tokens

* Apply suggestions from code review

Co-authored-by: Roman Khavronenko <hagen1778@gmail.com>

* changed implementation, removed tests, clean up code

* moved endpoint builder into getEC2APIResponse

Co-authored-by: Roman Khavronenko <hagen1778@gmail.com>
 2020-09-21 16:05:01 +03:00
Aliaksandr Valialkin
a9321f6a60 lib/storage: reduce CPU load for idle VictoriaMetrics by reducing the frequency for the need for background merges 2020-09-21 15:51:26 +03:00
Aliaksandr Valialkin
604e8f6114 lib/decimal: optimize maxUpExponent() by eliminating division from hot path 2020-09-19 13:49:43 +03:00
Aliaksandr Valialkin
df547bf345 lib/persistentqueue: sync data to file inside filestream.Writer.MustFlush 2020-09-19 12:51:46 +03:00
Aliaksandr Valialkin
778ea183ca lib/decimal: properly store Inf values 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/752
 2020-09-18 19:08:53 +03:00
Aliaksandr Valialkin
adb4d3b75c 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 13:06:03 +03:00
Aliaksandr Valialkin
8fd791d399 lib/promscrape: avoid copying response body when scraping targets. 
This should reduce memory usage when scraping targets with millions of metrics.
 2020-09-18 13:06:00 +03:00
Aliaksandr Valialkin
d96858b921 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 12:20:56 +03:00
Aliaksandr Valialkin
3abbb38254 lib/{mergeset,storage}: compare errors with errors.Is() 2020-09-17 03:03:10 +03:00
Aliaksandr Valialkin
ddb3519e17 lib/{mergeset,storage}: code prettifying 2020-09-17 02:06:37 +03:00
Aliaksandr Valialkin
bf826dd828 lib/storage: removed duplicate checks for empty parts during merge - another check is in the beginning of mergeParts functions 2020-09-17 01:49:08 +03:00
Aliaksandr Valialkin
406f4fe445 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 22:36:18 +03:00
Aliaksandr Valialkin
9705ac5d7a lib/persistentqueue: code simplification after d455764a6f 2020-09-16 21:14:01 +03:00
Aliaksandr Valialkin
eee6f1e56d 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 18:13:24 +03:00
Aliaksandr Valialkin
6ce52e3702 lib/protoparser/vmimport: add more testcases for invalid timestamps and values 
Updates https://github.com/VictoriaMetrics/vmctl/issues/25
 2020-09-16 02:21:53 +03:00
Aliaksandr Valialkin
cd87ca303f 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 02:16:15 +03:00
Aliaksandr Valialkin
5c4e111b43 lib/protoparser/graphite: return error when value or timestamp cannot be properly parsed 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/99
 2020-09-16 02:16:13 +03:00
Aliaksandr Valialkin
0c1c1b79ba lib/promscrape: add a link to troubleshooting docs to error message when duplicate scrape target with identical labels is skipped 2020-09-15 14:16:20 +03:00
Aliaksandr Valialkin
ca08161b54 lib/promscrape: typo fix 2020-09-12 00:14:15 +03:00
Aliaksandr Valialkin
e53235ac5c 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 23:38:17 +03:00
Aliaksandr Valialkin
114cf24b43 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 21:35:39 +03:00
Aliaksandr Valialkin
5cf5a0e8c4 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 14:45:21 +03:00
Aliaksandr Valialkin
81c05f669b 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 14:45:20 +03:00
Aliaksandr Valialkin
8bd5aa3516 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 14:05:24 +03:00
Aliaksandr Valialkin
58d3b82ae5 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 13:28:31 +03:00
Nikolay Khramchikhin
af994562c8 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 12:24:50 +03:00
Aliaksandr Valialkin
f307e6f432 app/vmselect: initial implementation of Graphite Metrics API 
See https://graphite-api.readthedocs.io/en/latest/api.html#the-metrics-api
 2020-09-11 00:30:20 +03:00
Aliaksandr Valialkin
f5cb213ef9 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 23:59:21 +03:00
Aliaksandr Valialkin
e5c8377212 lib/httpserver: add a jitter to connection timeouts in order to protect from Thundering herd problem 2020-09-08 19:57:20 +03:00
Nikolay Khramchikhin
fb356c434b 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 21:55:45 +03:00
Aliaksandr Valialkin
d2f6f96e4a 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 00:04:57 +03:00
Aliaksandr Valialkin
281d715060 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 22:23:55 +03:00
Aliaksandr Valialkin
4fa97430d7 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 19:47:02 +03:00
Aliaksandr Valialkin
95ce89e7d7 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 18:46:55 +03:00
Aliaksandr Valialkin
bc1ca4b20b lib/httpserver: add -http.idleConnTimeout command-line flag for tuning the timeout for incoming idle http connections 2020-09-01 15:33:31 +03:00
Aliaksandr Valialkin
a01c56104a lib/promscrape: fix applying sample_limit when scraping targets with big number of metrics 
This has been broken at 7785869ccc
 2020-09-01 11:09:25 +03:00
Aliaksandr Valialkin
deff8d419a 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 10:55:24 +03:00
Aliaksandr Valialkin
5f2277624a lib/{promscrape,leveledbytebufferpool}: rename getPoolIdAndCapacity to getPoolIDAndCapacity in order to make golint happy 2020-08-28 09:49:22 +03:00
Aliaksandr Valialkin
45e770ed20 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 09:49:22 +03:00
Roman Khavronenko
34ef10fbcc 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.
 2020-08-28 09:46:35 +03:00
Aliaksandr Valialkin
9a77ae9d1c 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 22:30:34 +03:00
Aliaksandr Valialkin
3ea6444219 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 22:13:38 +03:00
Roman Khavronenko
4b89da9463 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 17:22:40 +03:00
Aliaksandr Valialkin
6aab2f4989 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 17:08:28 +03:00
Aliaksandr Valialkin
1b5467f7fd lib/memory: improve log message about the memory allowed to use by VictoriaMetrics 2020-08-16 17:08:27 +03:00
Aliaksandr Valialkin
d9f7ea1c6e 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 15:38:35 +03:00
Aliaksandr Valialkin
edf3ee2a9b 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 14:51:14 +03:00
Aliaksandr Valialkin
6e863376f7 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 01:41:59 +03:00
Aliaksandr Valialkin
3efa4e4e1c lib/protoparser: move common code for detecting timeouts to ReadLinesBlockExt 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/696
 2020-08-14 20:39:51 +03:00
Aliaksandr Valialkin
c6b0547847 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 20:13:37 +03:00
Aliaksandr Valialkin
9d79a3a99d lib/memory: add -memory.allowedBytes command-line flag for setting absolute memory limit for VictoriaMetrics caches 2020-08-14 19:19:10 +03:00
Aliaksandr Valialkin
b996280c65 app/{vminsert,vmagent}: improve documentation for -influxListenAddr command-line flag 2020-08-14 18:03:08 +03:00
Aliaksandr Valialkin
c82a485cf6 lib/protoparser/prometheus: typo fix in error message 2020-08-14 11:04:15 +03:00
Aliaksandr Valialkin
9e67343756 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 01:17:46 +03:00
Aliaksandr Valialkin
b4119bb51e 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 01:05:04 +03:00
Aliaksandr Valialkin
1724cc241e 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 22:32:29 +03:00
Aliaksandr Valialkin
60c7397be5 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 17:17:06 +03:00
Aliaksandr Valialkin
6721e47ae9 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 23:01:03 +03:00
Aliaksandr Valialkin
59d95961b8 lib/protoparser: clarify that the string passed to Unmarshal() function must remain available when the parsed rows are in use 2020-08-11 17:05:21 +03:00
Aliaksandr Valialkin
890cfe5b61 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 20:23:20 +03:00
Aliaksandr Valialkin
e3439a6cd0 lib/promscrape: optimize per-metric hash calculations 
This increases vmagent performance by up to 10% when scraping big number of metrics
 2020-08-10 19:47:50 +03:00
Aliaksandr Valialkin
4ce1368e4b 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 13:46:29 +03:00
Aliaksandr Valialkin
f92255e803 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 13:36:54 +03:00
Aliaksandr Valialkin
b3d4ff7ee2 app/vmstorage: improve error logging when the request times out 2020-08-10 13:17:24 +03:00
Aliaksandr Valialkin
e3999ac010 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 12:40:49 +03:00
Aliaksandr Valialkin
c09c881264 lib/promscrape: make errcheck happy 2020-08-09 13:17:30 +03:00
Aliaksandr Valialkin
2dfb42a8b4 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 12:45:30 +03:00
Aliaksandr Valialkin
fd9f1463df 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 12:07:35 +03:00
Aliaksandr Valialkin
d4be3efc60 lib/promscrape: add a test for scrape config for blackbox exporter 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/684
 2020-08-09 12:03:51 +03:00
Aliaksandr Valialkin
67cacb22ac lib/httpserver: add -tls, -tlsCertFile and -tlsKeyFile command-line flags in every vm binary 
This makes such binaries compatible with binaries from `master` branch (aka single-node version)

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/677
 2020-08-07 10:57:32 +03:00
Aliaksandr Valialkin
307281e922 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 08:49:13 +03:00
Aliaksandr Valialkin
dd1d59f57a lib/storage: properly check timeouts and pace limits 
Previously they were checked on every iteration for small number of iterations
 2020-08-07 08:40:56 +03:00
Aliaksandr Valialkin
a2039b3bbc app/vmselect: return the upper bound on the number of found time series from storage.Search.Init 
This is used by a single-node version in order to reduce memory allocations during search.
See bc8381613d for details.
 2020-08-06 19:20:31 +03:00
Aliaksandr Valialkin
b690eeff53 lib/storage: reduce the frequency (and overhead) for timeout and pace limiter checks by 4x 2020-08-06 18:45:47 +03:00
Aliaksandr Valialkin
6c0a92a1ee lib/pacelimiter: increase scalability for multi-CPU system 2020-08-06 18:33:07 +03:00