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ceph: increasing the auto-resolvable alerts' delay to 15m #8896

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merged 1 commit into from Oct 1, 2021
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ceph: increasing the auto-resolvable alerts' delay to 15m #8896

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6 changes: 3 additions & 3 deletions cluster/examples/kubernetes/ceph/monitoring/prometheus-ceph-v14-rules.yaml
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Expand Up @@ -91,7 +91,7 @@ spec:
storage_type: ceph
expr: |
(ceph_mon_metadata{job="rook-ceph-mgr"} * on (ceph_daemon) group_left() (rate(ceph_mon_num_elections{job="rook-ceph-mgr"}[5m]) * 60)) > 0.95
for: 5m
for: 15m
labels:
severity: warning
- name: ceph-node-alert.rules
Expand Down Expand Up @@ -150,7 +150,7 @@ spec:
storage_type: ceph
expr: |
label_replace((ceph_osd_in == 1 and ceph_osd_up == 0),"disk","$1","ceph_daemon","osd.(.*)") + on(ceph_daemon) group_left(host, device) label_replace(ceph_disk_occupation,"host","$1","exported_instance","(.*)")
for: 1m
for: 15m
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changing interval for a critical severity error like CephOSDDiskNotResponding from 1 minute to 15 minutes seems a bit ... risky!

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@aruniiird what's the rationale behind that change?

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This change is mainly for ODF Managed Service product , their SREs (their customer support team) are getting (action required) alerts, which are automatically resolved (either by ceph itself or through OCS Operator reconciliation). So they want to increase the alert time delay for the following alerts,

CephMonHighNumberOfLeaderChanges
CephOSDDiskNotResponding
CephClusterWarningState

As we don't have a separate alert mechanism for Managed Services , making the changes here.

labels:
severity: critical
- alert: CephOSDDiskUnavailable
Expand Down Expand Up @@ -242,7 +242,7 @@ spec:
storage_type: ceph
expr: |
ceph_health_status{job="rook-ceph-mgr"} == 1
for: 10m
for: 15m
labels:
severity: warning
- alert: CephOSDVersionMismatch
Expand Down