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Update etcdMembersDown Runbook #171

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Update etcdMembersDown Runbook #171

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Remove $ from commands so copy paste works. Added another method of …
Mar 22, 2024
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Mar 22, 2024
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18 changes: 12 additions & 6 deletions alerts/cluster-etcd-operator/etcdMembersDown.md
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Original file line number Diff line number Diff line change
Expand Up @@ -22,13 +22,19 @@ Login to the cluster. Check health of master nodes if any of them is in
`NotReady` state or not.

```console
$ oc get nodes -l node-role.kubernetes.io/master=
oc get nodes -l node-role.kubernetes.io/master=
```

Check if an upgrade is in progress.

```console
$ oc adm upgrade
oc adm upgrade
```

You can also check if an upgrade is in progress by viewing resources in the openshift-managed-upgrade-operator namespace.

```console
oc get upgrade -n openshift-managed-upgrade-operator
```

In case there is no upgrade going on, but there is a change in the
Expand All @@ -39,7 +45,7 @@ the master nodes. This is the case when the [machine-config-operator
(MCO)](https://github.com/openshift/machine-config-operator) is working on it.

```console
$ oc get nodes -l node-role.kubernetes.io/master= -o template --template='{{range .items}}{{"===> node:> "}}{{.metadata.name}}{{"\n"}}{{range $k, $v := .metadata.annotations}}{{println $k ":" $v}}{{end}}{{"\n"}}{{end}}'
oc get nodes -l node-role.kubernetes.io/master= -o template --template='{{range .items}}{{"===> node:> "}}{{.metadata.name}}{{"\n"}}{{range $k, $v := .metadata.annotations}}{{println $k ":" $v}}{{end}}{{"\n"}}{{end}}'
```

### General etcd health
Expand All @@ -48,19 +54,19 @@ To run `etcdctl` commands, we need to `rsh` into the `etcdctl` container of any
etcd pod.

```console
$ oc rsh -c etcdctl -n openshift-etcd $(oc get pod -l app=etcd -oname -n openshift-etcd | awk -F"/" 'NR==1{ print $2 }')
oc rsh -c etcdctl -n openshift-etcd $(oc get pod -l app=etcd -oname -n openshift-etcd | awk -F"/" 'NR==1{ print $2 }')
```

Validate that the `etcdctl` command is available:

```console
$ etcdctl version
etcdctl version
```

Run the following command to get the health of etcd:

```console
$ etcdctl endpoint health -w table
etcdctl endpoint health -w table
```

## Mitigation
Expand Down