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Alert user if ceph metadata server is consuming cpu at threshold point. #2307

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merged 1 commit into from
Dec 11, 2023
Merged

Alert user if ceph metadata server is consuming cpu at threshold point. #2307

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13 changes: 13 additions & 0 deletions metrics/deploy/prometheus-ocs-rules.yaml
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Expand Up @@ -286,3 +286,16 @@ spec:
for: 15m
labels:
severity: warning
- alert: MDSCPUUsageHigh
annotations:
description: |-
Ceph metadata server pod ({{ $labels.pod }}) has high cpu usage.
Please consider increasing the number of active metadata servers,
it can be done by increasing the number of activeMetadataServers parameter in the StorageCluster CR.
message: Ceph metadata server pod ({{ $labels.pod }}) has high cpu usage
severity_level: warning
expr: |
pod:container_cpu_usage:sum{pod=~"rook-ceph-mds.*"}/ on(pod) kube_pod_resource_limit{resource='cpu',pod=~"rook-ceph-mds.*"} > 0.67
for: 6h
labels:
severity: warning
16 changes: 16 additions & 0 deletions metrics/mixin/alerts/perf.libsonnet
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Expand Up @@ -34,6 +34,22 @@
severity_level: 'warning',
},
},

{
alert: 'MDSCPUUsageHigh',
expr: |||
pod:container_cpu_usage:sum{%(mdsSelector)s}/ on(pod) kube_pod_resource_limit{resource='cpu',%(mdsSelector)s} > 0.67
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||| % $._config,
'for': $._config.mds_cpu_usage_high_threshold_duration,
labels: {
severity: 'warning',
},
annotations: {
message: 'Ceph metadata server pod ({{ $labels.pod }}) has high cpu usage',
description: 'Ceph metadata server pod ({{ $labels.pod }}) has high cpu usage.\nPlease consider increasing the number of active metadata servers,\nit can be done by increasing the number of activeMetadataServers parameter in the StorageCluster CR.',
severity_level: 'warning',
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},
},
],
},
],
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2 changes: 2 additions & 0 deletions metrics/mixin/config.libsonnet
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Expand Up @@ -16,6 +16,8 @@
ocsStorageClusterKMSConnectionAlert: '5s',
mdsCacheUsageAlertTime: '5m',
osdCPULoadHighAlertTime: '15m',
mdsSelector: 'pod=~"rook-ceph-mds.*"',
mds_cpu_usage_high_threshold_duration: '6h',
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// Constants
objectStorageType: 'RGW',
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