Pacemaker fails to authenticate or complete setup due to interference from Instana

Solution Verified - Updated -

Issue

Below commands to authorize nodes in a pacemaker cluster may fail with one or all nodes reporting Operation timed out and Unable to communicate errors:

[root@nodea ~]# pcs host auth nodea nodeb -u hacluster
Password:
Error: Operation timed out
nodeb: Authorized
Error: Unable to communicate with nodea

Below commands to setup nodes in a pacemaker cluster may fail with one or all nodes reporting Failed to connect: Connection refused errors:

[root@nodea ~]# pcs cluster setup cluster1 nodea nodeb 
Error: Unable to connect to nodea ( Failed to connect to nodea port 2224: Connection refused)
Error: Unable to connect to nodeb ( Failed to connect to nodeb port 2224: Connection refused)
Error: Errors have occurred, therefore pcs is unable to continue

Environment

  • This issue has only been observed in RHEL 8, but it is possible that other major releases running pacemaker may also be affected.
  • Instana Application Monitoring tool
  • Pacemaker
  • pcs

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