alerts: move ConcurrentFlushesHitTheLimit alert to health alerts

The `ConcurrentFlushesHitTheLimit` could be related to components like
vminsert, vmstorage, vm-single-node and vmagent. Moving this alert
to the `health` section of alerts will be benefitial for all components
and will remove the duplicates from single/cluster alerts.

Signed-off-by: hagen1778 <roman@victoriametrics.com>
This commit is contained in:
hagen1778 2023-08-03 10:45:21 +02:00
parent 1043fc1fd9
commit 2e4d0d0e41
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4 changed files with 16 additions and 25 deletions

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@ -80,18 +80,6 @@ groups:
description: "RPC errors are interconnection errors between cluster components.\n
Possible reasons for errors are misconfiguration, overload, network blips or unreachable components."
- alert: ConcurrentFlushesHitTheLimit
expr: avg_over_time(vm_concurrent_insert_current[1m]) >= vm_concurrent_insert_capacity
for: 15m
labels:
severity: warning
show_at: dashboard
annotations:
dashboard: "http://localhost:3000/d/oS7Bi_0Wz?viewPanel=133&var-instance={{ $labels.instance }}"
summary: "vmstorage on instance {{ $labels.instance }} is constantly hitting concurrent flushes limit"
description: "The limit of concurrent flushes on instance {{ $labels.instance }} is equal to number of CPUs.\n
When vmstorage constantly hits the limit it means that storage is overloaded and requires more CPU."
- alert: RowsRejectedOnIngestion
expr: sum(rate(vm_rows_ignored_total[5m])) by (instance, reason) > 0
for: 15m

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@ -1,4 +1,5 @@
# File contains default list of alerts for VM components.
# File contains default list of alerts for various VM components.
# The following alerts are recommended for use for any VM installation.
# The alerts below are just recommendations and may require some updates
# and threshold calibration according to every specific setup.
groups:
@ -73,3 +74,16 @@ groups:
description: "The rate of TSID misses during query lookups is too high for \"{{ $labels.job }}\" ({{ $labels.instance }}).\n
Make sure you're running VictoriaMetrics of v1.85.3 or higher.\n
Related issue https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3502"
- alert: ConcurrentInsertsHitTheLimit
expr: avg_over_time(vm_concurrent_insert_current[1m]) >= vm_concurrent_insert_capacity
for: 15m
labels:
severity: warning
annotations:
summary: "{{ $labels.job }} on instance {{ $labels.instance }} is constantly hitting concurrent inserts limit"
description: "The limit of concurrent inserts on instance {{ $labels.instance }} depends on the number of CPUs.\n
Usually, when component constantly hits the limit it is likely the component is overloaded and requires more CPU.
In some cases for components like vmagent or vminsert the alert might trigger if there are too many clients
making write attempts. If vmagent's or vminsert's CPU usage and network saturation are at normal level, then
it might be worth adjusting `-maxConcurrentInserts` cmd-line flag."

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@ -60,18 +60,6 @@ groups:
description: "Requests to path {{ $labels.path }} are receiving errors.
Please verify if clients are sending correct requests."
- alert: ConcurrentFlushesHitTheLimit
expr: avg_over_time(vm_concurrent_insert_current[1m]) >= vm_concurrent_insert_capacity
for: 15m
labels:
severity: warning
show_at: dashboard
annotations:
dashboard: "http://localhost:3000/d/wNf0q_kZk?viewPanel=59&var-instance={{ $labels.instance }}"
summary: "VictoriaMetrics on instance {{ $labels.instance }} is constantly hitting concurrent flushes limit"
description: "The limit of concurrent flushes on instance {{ $labels.instance }} is equal to number of CPUs.\n
When VictoriaMetrics constantly hits the limit it means that storage is overloaded and requires more CPU."
- alert: RowsRejectedOnIngestion
expr: sum(rate(vm_rows_ignored_total[5m])) by (instance, reason) > 0
for: 15m

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@ -33,6 +33,7 @@ The following `tip` changes can be tested by building VictoriaMetrics components
* FEATURE: [vmctl](https://docs.victoriametrics.com/vmctl.html): do not add `/api/v1/read` suffix to remote read storage address defined by `--remote-read-src-addr` if a `--remote-read-disable-path-append` command-line flag is set. It allows an overriding path for remote-read API via `--remote-read-src-addr`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4655).
* FEATURE: [vmui](https://docs.victoriametrics.com/#vmui): add warning in query field of vmui for partial data responses. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4721).
* FEATURE: [Official Grafana dashboards for VictoriaMetrics](https://grafana.com/orgs/victoriametrics): add `Concurrent inserts` panel to vmagent's dasbhoard. The new panel supposed to show whether the number of concurrent inserts processed by vmagent isn't reaching the limit.
* FEATURE: [Alerting rules for VictoriaMetrics](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/deployment/docker#alerts): `ConcurrentFlushesHitTheLimit` alerting rule was moved from [single-server](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/alerts.yml) and [cluster](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/alerts-cluster.yml) alerts to the [list of "health" alerts](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/alerts-health.yml) as it could be related to many VictoriaMetrics components.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/vmagent.html): use local scrape timestamps for the scraped metrics unless `honor_timestamps: true` option is explicitly set at [scrape_config](https://docs.victoriametrics.com/sd_configs.html#scrape_configs). This fixes gaps for metrics collected from [cadvisor](https://github.com/google/cadvisor) or similar exporters, which export metrics with invalid timestamps. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4697) and [this comment](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4697#issuecomment-1654614799) for details. The issue has been introduced in [v1.68.0](#v1680).
* BUGFIX: [vmbackupmanager](https://docs.victoriametrics.com/vmbackupmanager.html): fix panic when creating a backup to a local filesystem on Windows. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4704).