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Merge pull request #31 from nvtkaszpir/patch-2

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Paweł Krupa
2022-02-22 13:01:20 +01:00
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content/runbooks/etcd/etcdInsufficientMembers.md
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@@ -4,6 +4,7 @@
This alert fires when there are fewer instances available than are needed by
etcd to be healthy.
This means that etcd cluster has not enough members in the cluster to create quorum.
## Impact
@@ -11,6 +12,9 @@ When etcd does not have a majority of instances available the Kubernetes and
OpenShift APIs will reject read and write requests and operations that preserve
the health of workloads cannot be performed.
In general loosing quorum will switch etcd to read only, which effectively renders k8s api read only.
It is possible to read the current state, but not possible to update it.
## Diagnosis
This can kubectlcur multiple control plane nodes are powered off or are unable to