Mirantis Container Cloud (MCC) becomes part of Mirantis OpenStack for Kubernetes (MOSK)!

Starting with MOSK 25.2, the MOSK documentation set will cover all product layers, including MOSK management (formerly MCC). This means everything you need will be in one place. The separate MCC documentation site will be retired, so please update your bookmarks for continued easy access to the latest content.

Etcd¶

This section describes the alerts for the etcd service.

etcdDbSizeCritical
etcdDbSizeMajor
etcdInsufficientMembers
etcdNoLeader
etcdHighNumberOfLeaderChanges
etcdHighNumberOfFailedProposals
etcdTargetDown
etcdTargetsOutage

etcdDbSizeCritical¶

Available since MCC 2.21.0 (11.5.0 and 7.11.0)

Severity	Critical
Summary	Etcd database passed 95% of quota.
Description	The `{{ $labels.job }}` etcd database reached `{{ $value }}` % of defined quota on the `{{ $labels.node }}` node.

etcdDbSizeMajor¶

Available since MCC 2.21.0 (11.5.0 and 7.11.0)

Severity	Major
Summary	Etcd database passed 85% of quota.
Description	The `{{ $labels.job }}` etcd database reached `{{ $value }}` % of defined quota on the `{{ $labels.node }}` node.

etcdInsufficientMembers¶

Severity	Critical
Summary	Etcd cluster has insufficient members.
Description	The `{{ $labels.job }}` etcd cluster has `{{ $value }}` insufficient members.

etcdNoLeader¶

Severity	Critical
Summary	Etcd cluster has no leader.
Description	The `{{ $labels.node }}` member of the `{{ $labels.job }}` etcd cluster has no leader.

etcdHighNumberOfLeaderChanges¶

Severity	Warning
Summary	Etcd cluster has detected more than 3 leader changes within the last hour.
Description	The `{{ $labels.node }}` node of the `{{ $labels.job }}` etcd cluster has `{{ $value }}` leader changes within the last hour.

etcdHighNumberOfFailedProposals¶

Severity	Warning
Summary	Etcd cluster has more than 5 proposal failures.
Description	The `{{ $labels.job }}` etcd cluster has `{{ $value }}` proposal failures on the `{{ $labels.node }}` etcd node within the last hour.

etcdTargetDown¶

Since MCC 2.25.0 (17.0.0 and 16.0.0) to replace etcdTargetsOutage

Severity	Critical
Summary	Etcd cluster Prometheus target down.
Description	Prometheus fails to scrape metrics from the etcd `{{ $labels.job }}` cluster instance on the `{{ $labels.node }}` node.

etcdTargetsOutage¶

Replaced with etcdTargetDown in MCC 2.25.0 (17.0.0 and 16.0.0)

Severity	Critical
Summary	Etcd cluster Prometheus targets outage.
Description	Prometheus fails to scrape metrics from 2/3 of etcd nodes (more than 1/10 failed scrapes).