Commit Graph

911 Commits

Author SHA1 Message Date
Aliaksandr Valialkin
ae8ec78c63 docs/FAQ.md: add more entries for frequently asked questions
The following topics are covered:

* Active time series
* High cardinality
* High churn rate
* Slow inserts
2021-08-24 11:34:31 +03:00
Aliaksandr Valialkin
9b39e078c0 docs/MetricsQL.md: typo fix: histogram_qunatile -> histogram_quantile 2021-08-23 23:08:28 +03:00
Aliaksandr Valialkin
3eca49c4a6 docs/MetricsQL.md: fix the indentation for median function 2021-08-23 12:04:43 +03:00
Aliaksandr Valialkin
a4948d92b5 docs/MetricsQL.md: typo fix: convesions->conversions 2021-08-23 12:01:34 +03:00
Aliaksandr Valialkin
8b9dc45c3c docs/MetricsQL.md: typo fixes 2021-08-23 12:00:17 +03:00
Aliaksandr Valialkin
5917c72ddd docs/MetricsQL.md: rehaul the documentation on MetricsQL
* Document all the functions supported by MetricsQL, including PromQL functions
* Group functions by their type: rollup functions, transform functions, label manipulation functions and aggregate functions.
* Document implicit query transformations.
2021-08-23 11:46:30 +03:00
Aliaksandr Valialkin
40b06e84f8 app/vmselect/promql: rename sign() function to sgn() in order to be consistent with Prometheus
See https://github.com/prometheus/prometheus/pull/8457 for details.
2021-08-23 11:46:29 +03:00
Aliaksandr Valialkin
8493159eed deployment/docker: update Go builder from Go1.16.7 to Go1.17.0
This improves data ingestion and query performance by up to 5% according to benchmarks.

See https://go.dev/blog/go1.17
2021-08-21 22:22:31 +03:00
Aliaksandr Valialkin
67bc407747 lib/promscrape: reduce memory and CPU usage when Prometheus staleness tracking is enabled for metrics from deleted / disappeared scrape targets
Store the scraped response body instead of storing the parsed and relabeld metrics.
This should reduce memory usage, since the response body takes less memory than the parsed and relabeled metrics.
This is especially true for Kubernetes service discovery, which adds many long labels for all the scraped metrics.

This should also reduce CPU usage, since the marshaling of the parsed
and relabeld metrics has been substituted by response body copying.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1526
2021-08-21 21:24:07 +03:00
Aliaksandr Valialkin
ff4c7c1a3d docs/vmalert.md: run make docs-sync after 9ee3d0378f 2021-08-21 20:25:26 +03:00
Aliaksandr Valialkin
388e07b37f docs/CHANGELOG.md: document 9ee3d0378f 2021-08-21 20:23:22 +03:00
Aliaksandr Valialkin
3454f25e0f docs/CHANGELOG.md: document b5d6a0e499 2021-08-19 14:07:00 +03:00
Aliaksandr Valialkin
2e1eb33bfd docs/CHANGELOG.md: clarify the change, which adds -search.noStaleMarkers command-line flag 2021-08-19 13:55:43 +03:00
Aliaksandr Valialkin
ee1f3414d1 app/vmselect/promql: do not override [d] at last_over_time(m[d]) if [d] is smaller than scrape_interval
Since most users do not expect the overriding of explicitly set `[d]`.
2021-08-19 10:33:10 +03:00
Aliaksandr Valialkin
47a37b8cfc docs/CHANGELOG.md: cut v1.64.1
This is mostly bugfix release, which includes fixes for staleness handling and a security update for Alpine base image
2021-08-18 22:07:05 +03:00
Aliaksandr Valialkin
8ee575dee9 lib/promscrape: send stale markers for the previously scraped metrics on failed scrapes like Prometheus does 2021-08-18 22:00:46 +03:00
Aliaksandr Valialkin
355690a719 docs/CHANGELOG.md: document 06bf21c21b 2021-08-18 14:01:42 +03:00
Aliaksandr Valialkin
5d92fafc40 app/vmselect: add -search.noStaleMarkers command-line flag for disabling stale markers handling in queries
This option allows reducing CPU usage a bit when VictoriaMetrics is used
for collecting and processing non-Prometheus data. For example, InfluxDB line protocol, Graphite, OpenTSDB, CSV, etc.
2021-08-18 13:58:06 +03:00
Aliaksandr Valialkin
f21fad53b4 lib/promscrape: add ability to disable sending Prometheus staleness markers with -promscrape.disableStaleMarkers command-line flag
This option can be useful when vmagent consumes too much additional memory
for staleness markers functionality and when staleness markers aren't needed.
2021-08-18 13:58:05 +03:00
Aliaksandr Valialkin
49886ecbc8 app/vmselect/promql: add bitmap_and(), bitmap_or() and bitmap_xor() functions to MetricsQL
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1541
2021-08-17 13:22:15 +03:00
Aliaksandr Valialkin
130a5cab7e docs/Single-server-VictoriaMetrics.md: mention that vmctl can migrate data from OpenTSDB to VictoriaMetrics 2021-08-17 11:17:38 +03:00
Aliaksandr Valialkin
db34c40aec lib/promscrape: stop scrapers for the removed targets before starting scrapers for the added targets
This should prevent from possible time series overlap when old target is substituted by new target (for example, during Kubernetes deployments).

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1526
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1530
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/748
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1509
2021-08-17 01:00:40 +03:00
Aliaksandr Valialkin
fe8c462044 app/vmalert: mention -remoteWrite.disablePathAppend in the description for -remoteWrite.url 2021-08-16 15:23:39 +03:00
Aliaksandr Valialkin
21974cb571 app/vmalert: follow-up for 2400f85761 2021-08-16 15:20:35 +03:00
Aliaksandr Valialkin
a47c1a734a docs/CHANGELOG.md: update urls to Prometheus 2.29 release
Previously these urls were pointing to rc0 release
2021-08-16 14:58:05 +03:00
Aliaksandr Valialkin
f05e827757 docs/CHANGELOG.md: typo fix: satureated -> saturated 2021-08-16 14:58:05 +03:00
Alexander Rickardsson
d27dc3721b vmalert: enable configuring explicit path (#1536)
* vmalert: allow to disable automatically added path to remote write address via disablePathAppend flag
* docs: update docs to include remoteWrite.disablePathAppend
2021-08-16 14:58:05 +03:00
Aliaksandr Valialkin
75a0345215 docs/CHANGELOG.md: cut v1.64.0 2021-08-15 23:52:24 +03:00
Aliaksandr Valialkin
5f13c519ee lib/promscrape: restore red highlighting for DOWN targets at /targets page
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1461
2021-08-15 16:04:33 +03:00
Aliaksandr Valialkin
175727dace docs/CHANGELOG.md: mention the bugfix when more than 27 time series are selected at /vmui 2021-08-15 15:11:13 +03:00
Aliaksandr Valialkin
b09b035d3e docs/CHANGELOG.md: mention that VMUI automatically fills Server URL field
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1506
2021-08-15 14:45:59 +03:00
Aliaksandr Valialkin
48920bdef8 app/vmagent/remotewrite: expose vmagent_remotewrite_send_duration_seconds_total metric
This metric can be used for determining high saturation of every connection to remote storage with
an alerting query `rate(vmagent_remotewrite_send_duration_seconds_total) > 0.9s`.
This query triggers when a connection is satureated by more than 90%
2021-08-15 13:34:07 +03:00
Aliaksandr Valialkin
c1f81f08d4 all: add support for Prometheus staleness markers
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1526
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/748
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1509
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1530
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/845
2021-08-13 12:13:15 +03:00
Aliaksandr Valialkin
7feb62eea9 docs/Cluster-VictoriaMetrics.md: meniton that vmagent can be used for replicating the data among multiple clusters
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1491
2021-08-12 12:47:08 +03:00
Denys Holius
1491767a9e added guide for HA monitoring setup in K8s via VM Cluster (#1523)
* added guide for HA monitoring setup in K8s via VM Cluster

* fixed missed divs

* fixed different typos

* Update docs/guides/k8s-ha-monitoring-via-vm-cluster.md

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

* Update docs/guides/k8s-ha-monitoring-via-vm-cluster.md

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

* Update docs/guides/k8s-ha-monitoring-via-vm-cluster.md

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

* Update docs/guides/k8s-ha-monitoring-via-vm-cluster.md

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

* Update docs/guides/k8s-ha-monitoring-via-vm-cluster.md

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

* Update docs/guides/k8s-ha-monitoring-via-vm-cluster.md

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

* Update docs/guides/k8s-ha-monitoring-via-vm-cluster.md

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

* Update docs/guides/k8s-ha-monitoring-via-vm-cluster.md

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

* Update docs/guides/k8s-ha-monitoring-via-vm-cluster.md

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

* Update docs/guides/k8s-ha-monitoring-via-vm-cluster.md

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

* Update docs/guides/k8s-ha-monitoring-via-vm-cluster.md

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

Co-authored-by: Roman Khavronenko <hagen1778@gmail.com>
2021-08-11 13:42:53 +03:00
Aliaksandr Valialkin
9eb828b2c2 app/vminsert: add vm_rpc_send_duration_seconds_total metric per each vminsert->vmstorage link
This metric is useful for determining high link saturation with the following alerting rule:

rate(vm_rpc_send_duration_seconds_total) > 0.9s
2021-08-11 11:42:33 +03:00
Aliaksandr Valialkin
3df6550153 docs/Cluster-VictoriaMetrics.md: update -help output for cluster components after the d375d9b878 2021-08-11 11:39:09 +03:00
Aliaksandr Valialkin
518d0aba18 docs: make docs-sync after e0ee69797d 2021-08-11 10:54:28 +03:00
Aliaksandr Valialkin
90efb5831b lib/envflag: add a link to docs for -envflag.enable 2021-08-11 10:32:40 +03:00
Aliaksandr Valialkin
d5ca07bd71 docs/CHANGELOG.md: document new metrics added to vmalert at 7416fdaa8b 2021-08-05 10:12:53 +03:00
Aliaksandr Valialkin
13d438d808 app/vmagent: typo fix in the description for -remoteWrite.queues 2021-08-05 10:00:58 +03:00
Aliaksandr Valialkin
b877538622 app/vmagent: follow-up after fe445f753b
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1491
2021-08-05 09:51:00 +03:00
Aliaksandr Valialkin
44bf4cabea docs/Articles.md: actualize links and re-order some links 2021-08-03 16:11:30 +03:00
Aliaksandr Valialkin
77bb9e1656 lib/promscrape/discovery/gce: add __meta_gce_interface_ipv4_<name> labels as in Prometheus 2.29
See https://github.com/prometheus/prometheus/pull/8978
2021-08-03 15:51:45 +03:00
Aliaksandr Valialkin
336a2aa2e0 lib/promscrape/discovery/ec2: add __meta_ec2_availability_zone_id label as Prometheus 2.29 does 2021-08-03 13:28:13 +03:00
Aliaksandr Valialkin
60cfa5f100 app/vmselect/promql: add present_over_time(m[d]) function, which will be available starting from Prometheus 2.29.0
See https://github.com/prometheus/prometheus/releases/tag/v2.29.0-rc.0 and https://github.com/prometheus/prometheus/pull/9097
2021-08-03 12:21:53 +03:00
Roman Khavronenko
51329d9e1e docs: add "Scaling to trillions of metric data points" to articles (#1517) 2021-08-03 11:14:57 +03:00
Roman Khavronenko
e127dcf013 docs: mention "Push Prometheus metrics to VictoriaMetrics or other exporters" article (#1511) 2021-08-02 17:23:45 +03:00
Roman Khavronenko
8e15c96004 docs: fix indentation for guide articles (#1512) 2021-08-02 17:17:24 +03:00
Aliaksandr Valialkin
d9810a7403 docs/CaseStudies.md: typo fix: hed->had 2021-07-30 18:49:17 +03:00