What is the valid method for adding comments in RHEL 6 High Availability cluster configuration?

Solution Verified - Updated -

Environment

  • Red Hat Enterprise Linux (RHEL) 6 with the High Availability Add-On
  • RGManager

Issue

  • Are XML Comments allowed in a cluster configuration file?

Resolution

The /etc/cluster/cluster.conf is a XML-based file, hence xml comments are applicable to the cluster configuration.

 <!-- put any text here -->

Diagnostic Steps

  • Add the comment in cluster configuration file /etc/cluster/cluster.conf.
  <Snip>
  ---- 
  <?xml version="1.0"?> <
   cluster config_version="317" name="Cluster-test"> 
  <!-- testing comments --> 
  <totem token="21000"/> 
  <clusternodes> 
  <clusternode name="vm1.example.com" nodeid="1">
   ----
  </Snip>
  • Populate changes across the cluster
  # cman_tool version -r
  • Validate cluster configuration
  # ccs_config_validate /etc/cluster/cluster.conf 
  Configuration validates

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