Trying to update a cluster - AWS ParallelCluster

Trying to update a cluster

pcluster update-cluster command fails to run locally

Check the ~/.parallelcluster/pcluster-cli.log in your local file system for failure details.

Seeing clusterStatus is UPDATE_FAILED with pcluster describe-cluster command

If the cluster stack update rolled back, check the /var/log/chef-client.logs file for error details.

Check to see if your issue is mentioned in GitHub Known Issues at AWS ParallelCluster on GitHub.

The cluster update timed out

This could be an issue related to cfn-hup not running. If the cfn-hup demon is terminated by an external cause, it's not restarted automatically. If cfn-hup isn't running, during a cluster update, the CloudFormation stack starts the update process as expected, but the update procedure isn't activated on the head node and the stack deployment eventually times out. For more information, see Troubleshooting a cluster update timeout when cfn-hup isn't running to troubleshoot and recover from the issue.