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add alert PrometheusHighQueryLoad.

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Signed-off-by: Haoyu Sun <hasun@redhat.com>
This commit is contained in:
Haoyu Sun 2022-06-23 14:54:11 +02:00
parent 87ffac3e9d
commit 26a7f80aa1
1 changed files with 14 additions and 0 deletions
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14
documentation/prometheus-mixin/alerts.libsonnet
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@ -317,6 +317,20 @@
description: '{{ printf "%%.0f" $value }} targets in Prometheus %(prometheusName)s have failed to sync because invalid configuration was supplied.' % $._config,
},
},
{
alert: 'PrometheusHighQueryLoad',
expr: |||
avg_over_time(prometheus_engine_queries{job="prometheus-k8s"}[5m]) / max_over_time(prometheus_engine_queries_concurrent_max{job="prometheus-k8s"}[5m]) > 0.8
||| % $._config,
'for': '15m',
labels: {
severity: 'warning',
},
annotations: {
summary: 'Prometheus is reaching its maximum capacity serving concurrent requests.',
description: 'Prometheus %(prometheusName)s query API has less than 20%% available capacity in its query engine for the last 15 minutes.' % $._config,
},
},
] + if $._config.prometheusHAGroupLabels == '' then self.rulesWithoutHA else self.rulesWithHA,
rulesWithoutHA:: [
{