Comparing Cluster Members Post: 302395744

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Special Forums UNIX and Linux Applications High Performance Computing Comparing Cluster Members Post 302395744 by jchurch on Tuesday 16th of February 2010 10:24:58 PM

02-16-2010

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Comparing Cluster Members

Does anyone know of a good utility that will do a binary compare of all the files on two cluster members? We are looking for something we can run on a monthly batch basis to monitor for configuration drift between AIX/HACMP and Solaris/VCS cluster member pairs, use as an ad hoc diagnostic tool when an app runs fine on one cluster node but not the other, or to compare test and prod systems to figure out why a problem cannot be reproduced in the test environment.

I realize tight system management procedures are the best preventative, but when you have eight sysadmins with root (sudo) access and another dozen people with varying access to app directories, some type of drift is inevitable. We need something that can at least help us prove that the machines are identical so we can direct diagnostic efforts back to the application.

jchurch

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crm_node

PACEMAKER(8)						  System Administration Utilities					      PACEMAKER(8)

NAME

       Pacemaker - Part of the Pacemaker cluster resource manager

SYNOPSIS

       crm_node command [options]

DESCRIPTION

       crm_node - Tool for displaying low-level node information

OPTIONS

       -?, --help
	      This text

       -$, --version
	      Version information

       -V, --verbose
	      Increase debug output

       -Q, --quiet
	      Essential output only

   Stack:
       -A, --openais
	      Only try connecting to an OpenAIS-based cluster

       -H, --heartbeat
	      Only try connecting to a Heartbeat-based cluster

   Commands:
       -e, --epoch
	      Display the epoch during which this node joined the cluster

       -q, --quorum
	      Display a 1 if our partition has quorum, 0 if not

       -l, --list
	      Display all known members (past and present) of this cluster (Not available for heartbeat clusters)

       -p, --partition
	      Display the members of this partition

       -i, --cluster-id
	      Display this node's cluster id

       -R, --remove=value
	      (Advanced, AIS-Only) Remove the (stopped) node with the specified nodeid from the cluster

   Additional Options:
       -f, --force

AUTHOR

       Written by Andrew Beekhof

REPORTING BUGS

       Report bugs to pacemaker@oss.clusterlabs.org

Pacemaker 1.1.7 						    April 2012							      PACEMAKER(8)