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Cisco Bug: CSCvv02149 - JIRA Bug: MAGLEV-12127 -- Cisco DNA Center install failed due to missing entry in cluster se

Last Modified

Aug 25, 2020

Products (1)

  • Cisco DNA Center

Known Affected Releases


Description (partial)

Adding a node to a Cisco DNA Center multi-node cluster may fail when (during the install process) etcd won't start on the node being added to the cluster.

The issue is caused on the node being added to the cluster when a value in the parameter is missing in the etcd.manifest file for the initial-cluster configuration.

To assess the condition, login to the node and run the following commands.

# Check that the kube-apiserver is running; only proceed to the next step if the kube-apiserver status shows as Exited
docker ps -a | grep kube-apiserver

# Check the kube-apiserver's docker log to check if is reporting an issue with connecting to etcd
docker log <kube-apiserver's-docker-id>

# Run netstat to check if etcd is listening on ports 2379 and 2380
netstat -tnl

# Check if etcd is running
docker ps -a | grep kube-apiserver

# Check etcd's log for the string "couldn't find local user 'etcd-<IP-address>' in the initial cluster configuration
docker log <etcd's-docker-id>

If the above conditions are met, then this issue is being encountered. Please open a TAC service request for assistance.
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