02-16-2010
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.
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LEARN ABOUT DEBIAN
app::clusterssh::cluster
App::ClusterSSH::Cluster(3pm) User Contributed Perl Documentation App::ClusterSSH::Cluster(3pm)
NAME
App::ClusterSSH::Cluster - Object representing cluster configuration
SYNOPSIS
DESCRIPTION
Object representing application configuration
METHODS
$cluster=ClusterSSH::Cluster->new();
Create a new object. Object should be common across all invocations.
$cluster->get_clusters($filename);
Read in /etc/clusters and any other given file name and register the tags found.
$cluster->read_cluster_file($filename);
Read in the given cluster file and register the tags found
$cluster->register_tag($tag,@hosts);
Register the given tag name with the given host names.
@entries = $cluster->get_tag('tag');
Retrieve all entries for the given tag
@tags = $cluster->list_tags();
Return an array of all available tag names
AUTHOR
Duncan Ferguson, "<duncan_j_ferguson at yahoo.co.uk>"
LICENSE AND COPYRIGHT
Copyright 1999-2010 Duncan Ferguson.
This program is free software; you can redistribute it and/or modify it under the terms of either: the GNU General Public License as
published by the Free Software Foundation; or the Artistic License.
See http://dev.perl.org/licenses/ for more information.
perl v5.14.2 2012-06-24 App::ClusterSSH::Cluster(3pm)