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167 commits

Author SHA1 Message Date
Aliaksandr Valialkin
5807ff57f3 lib/promscrape/discovery/kubernetes: reduce memory usage when Kubernetes service discovery is configured on a big number of scrape jobs 
Previously vmagent was creating a separate Kubernetes object cache per each scrape job.
This could result in increased memory usage when monitoring a Kubernetes cluster with big number of objects (pods / nodes / services, etc.)
as seen at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1113

Now it uses a shared map of scrape objects across multiple scrape jobs.
 2021-03-05 17:32:33 +02:00
Aliaksandr Valialkin
5277507932 app/vmselect/promql: add histogram_avg(), histogram_stddev() and histogram_stdvar() functions to MetricsQL 2021-03-04 14:12:52 +02:00
Aliaksandr Valialkin
133fb9fc00 lib/promscrape: add -promscrape.cluster.replicationFactor command-line flag for replicating scrape targets among vmagent instances in the cluster 2021-03-04 10:21:27 +02:00
Aliaksandr Valialkin
0b8d9350d4 docs/CHANGELOG.md: cut v1.55.1 release 2021-03-03 11:49:26 +02:00
Aliaksandr Valialkin
3a79fa147b docs/CHANGELOG.md: mention recent bugfixes from commits 7906316741 and e154f4a644 2021-03-03 10:50:59 +02:00
Aliaksandr Valialkin
3a1d884618 docs/CHANGELOG.md: cut v1.55.0 2021-03-02 21:39:53 +02:00
Aliaksandr Valialkin
f686174329 lib/promscrape/discovery/ec2: follow-up after f6114345de 2021-03-02 13:47:35 +02:00
Aliaksandr Valialkin
e45c399467 lib/protoparser/prometheus: properly unescape label values in Prometheus exposition format 
Unescape only `\n`, `\"` and `\\` sequences as Prometheus does. Other escape sequences shouldn't be unescaped.
 2021-03-02 13:22:10 +02:00
Aliaksandr Valialkin
f4969a624d lib/protoparser/graphite: fix parsing of a Graphite line with empty tags such as foo; 1 2 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1100
 2021-03-01 17:17:01 +02:00
Aliaksandr Valialkin
3a87d38912 docs/CHANGELOG.md: mention the out of range panic bugfix d6a41b6ea2 2021-03-01 16:54:18 +02:00
Aliaksandr Valialkin
57d2a27a64 docs/CHANGELOG.md: mention the issue related to using Kubernetes watch API for service discovery 2021-03-01 01:42:05 +02:00
Aliaksandr Valialkin
d0be1f6f49 app/vmagent: remove data race when applying rate limits to -remoteWrite.url with multiple queues 2021-03-01 00:28:20 +02:00
Aliaksandr Valialkin
0165063362 docs/CHANGELOG.md: mention about https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1074 2021-02-28 19:32:21 +02:00
Aliaksandr Valialkin
9e644ef111 lib/httpserver: make sure the gzipResponseWriter.Write() is called on Flush() and Close() calls 
This should fix the `http: superfluous response.WriteHeader call` issue

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1078
 2021-02-28 19:23:26 +02:00
Aliaksandr Valialkin
9a2bf65134 lib/promscrape: add ability to spread scrape targets among multiple vmagent instances 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1084
 2021-02-28 18:40:42 +02:00
Aliaksandr Valialkin
64b57c3ed3 docs/CHANGELOG.md: mention 317b0cbed2 2021-02-28 14:03:00 +02:00
Aliaksandr Valialkin
7f1302688f lib/fs: follow-up after f3a03c4164 2021-02-27 01:09:37 +02:00
Aliaksandr Valialkin
095e61a37f docs/CHANGELOG.md: mentioned a bugfix with extra_label handling during caching query results 
Related to 186c078fac
 2021-02-27 00:23:39 +02:00
Aliaksandr Valialkin
c1b8729bd8 lib/fs: properly handle stale NFS file handle error during file deletion 
This error can appear when -storageDataPath points to NFS volume and the given file has been already removed.
 2021-02-26 23:24:46 +02:00
Aliaksandr Valialkin
e38ca28d99 app/vmselect/promql: increase accuracy for buckets_limit() function for small limits by skipping the first and the last buckets during merge 
The first and the last buckets are usually `[0 ... leMin]` and `(leMax ... +Inf)`. If they are merged with adjancent buckets,
then the resulting accuracy can suffer.
 2021-02-26 22:56:04 +02:00
Aliaksandr Valialkin
dc8c045378 lib/promscrape: cleanup after 9b2246c29b 
Main points:

* Revert changes outside lib/promscrape/discovery/kuberntes . These changes can be applied later in a separate commit
* Minimize changes in lib/promscrape/discovery/kubernetes compared to a93e644001
* Corner case fixes.
 2021-02-26 19:09:12 +02:00
Aliaksandr Valialkin
0144b164c7 app/vmselect: add sign(q) and clamp(q, min, max) functions, which will be added in the upcoming Prometheus release 
See https://twitter.com/roidelapluie/status/1363428376162295811

The `last_over_time(m[d])` function already exists in MetricsQL.
 2021-02-24 17:26:27 +02:00
Aliaksandr Valialkin
0c76828ba6 docs/CHANGELOG.md: mention about a bugfix from 4805b80977 2021-02-24 11:48:54 +02:00
Aliaksandr Valialkin
d16effc29e app/vmselect/promql: properly calculate histogram_quantile() over zero buckets and only a single non-zero le="+Inf"` bucket like Prometheus does 2021-02-24 00:41:30 +02:00
Aliaksandr Valialkin
5dbe88a1c6 app/vmselect/promql: add increase_pure() function to MetricsQL 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/962
 2021-02-22 19:15:31 +02:00
Aliaksandr Valialkin
63c16c3fdf lib/promrelabel: optimize relabeling performance for common cases 2021-02-22 00:51:07 +02:00
Aliaksandr Valialkin
8b87398333 lib/promscrape: export vm_promscrape_target_relabel_duration_seconds metric 2021-02-21 23:21:35 +02:00
Aliaksandr Valialkin
1adbbe7617 vendor: update github.com/VictoriaMetrics/metrics from v1.14.0 to v1.15.0 
The v1.15.0 exports the following additional metrics:

    process_io_read_bytes_total - the number of bytes read via io syscalls such as read and pread
    process_io_written_bytes_total - the number of bytes written via io syscalls such as write and pwrite
    process_io_read_syscalls_total - the number of read syscalls such as read and pread
    process_io_write_syscalls_total - the number of write syscalls such as write and pwrite
    process_io_storage_read_bytes_total - the number of bytes read from storage layer
    process_io_storage_written_bytes_total - the number of bytes written to storage layer

These metrics can be used for monitoring process io
 2021-02-21 22:53:54 +02:00
Aliaksandr Valialkin
72eef964d9 app/vmagent: properly perform graceful shutdown, which was broken in the commit 1d1ba889fe 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1065
 2021-02-19 00:34:17 +02:00
Aliaksandr Valialkin
502d0e2524 lib/promscrape: add scrape_align_interval config option into scrape config 
This option allows aligning scrapes to a particular intervals.
 2021-02-18 23:53:04 +02:00
Aliaksandr Valialkin
bd1d906eee app/vmselect/promql: reduce the probability of duplicate time series errors when querying Kubernetes metrics 2021-02-18 22:08:13 +02:00
Aliaksandr Valialkin
3a8b2eed58 docs/CHANGELOG.md: cut v1.54.1 2021-02-18 19:10:57 +02:00
Aliaksandr Valialkin
418de71509 lib/storage: properly handle queries containing a filter on metric name plus any number of negative filters and zero non-negative filters 
Example: `node_cpu_seconds_total{mode!="idle"}`
 2021-02-18 18:33:05 +02:00
Aliaksandr Valialkin
be93e02085 docs/CHANGELOG.md: cut v1.54.0 2021-02-18 14:52:52 +02:00
Aliaksandr Valialkin
9c81429299 app/vmagent/remotewrite: cleanup after 1d1ba889fe 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1065
 2021-02-17 21:43:48 +02:00
Aliaksandr Valialkin
57d192a2c2 docs/CHANGELOG.md: mention that prod binaries are built now with Go1.16 
This is a follow-up for 4edfe76bef
 2021-02-17 21:07:48 +02:00
Aliaksandr Valialkin
31e04e0d45 docs/CHANGELOG.md: document new per-tenant metrics 2021-02-16 23:33:59 +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
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
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
f85c2f052f docs/CHANGELOG.md: mention about fixed multiarch build for Docker images 
Related commit: f9902b3372
 2021-02-12 15:24:16 +02:00
Aliaksandr Valialkin
9e88ff3075 app/vmauth: add ability to route requests from a single users to multiple targets depending on the requested path 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1064
 2021-02-11 12:41:38 +02:00
Aliaksandr Valialkin
985c3e301d app/vmselect: parallelize q1 <binary_op> q2 queries by running q1 and q2 in parallel 
This should reduce query execution times.
 2021-02-10 23:00:56 +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
fa0ef143b1 lib/storage: optimize search by label filters matching big number of time series 2021-02-10 00:46:17 +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
62574c478a docs/CHANGELOG.md: mention about a bugfix for timezone data from df0cda3ab9 2021-02-08 16:01:26 +02:00
Aliaksandr Valialkin
2b36eb3d82 lib/cgroup: follow-up after b9bf3cbe3e 2021-02-08 16:01:26 +02:00
Aliaksandr Valialkin
191bc0bcf3 docs: sync with master branch 2021-02-04 20:02:24 +02:00
Aliaksandr Valialkin
8e5dad8483 docs/CHANGELOG.md: mention recently added changes 2021-02-04 16:42:33 +02:00