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
4s-backend-setup
4S-BACKEND_SETUP(1J) 4store 4S-BACKEND_SETUP(1J)
NAME
4s-backend-setup -- Create a new 4store KB
SYNOPSIS
4s-backend-setup kbname [--node node-number] [--cluster cluster-size] [--segments segment-count] kb-name
--node Number of this node in the cluster, values range from 0 to cluster-size - 1. The default is 0.
--cluster
The number of nodes in the cluster. The default is 1.
--segments
The number of segments in the cluster. The default is 2. We recommend one for each CPU core in the cluster as a good
starting point. Higher numbers tend to consume more resources, but may result in increased performance.
NOTES
Once crated with 4s-backend-setup KBs should be started with 4s-backend(1)
SEE ALSO
4s-query(1), 4s-size(1), 4s-httpd(1), 4s-backend(1), 4s-delete-model(1)
EXAMPLES
$ 4s-backend-setup --node 0 --cluster 1 --segments 4 demo
Creates the indexes for a single-machine KB with four segments, named "demo".
4store May 31, 2019 4store