Red Hat HPC Solution

From Consultancy.EdVoncken.NET

In environments that need commercial support, you may want to look at Red Hat HPC Solution. It is based on Platform Lava and OCS (Open Cluster Stack). OCS has since been renamed to PCM (Platform Cluster Manager).

Kusu

PCM / OCS

Platform Cluster Manager, formerly known as Open Cluster Stack, supports clusters containing up to 512 nodes. It is roughly comparable in functionality to Platform LSF 6.x.

My Platform - PCM

CFM

CFM, or Configuration File Manager, is used to replicate configuration files from the installer node to all compute nodes.

The source files are kept on the installer node, under /etc/cfm/<nodegroupname>/.

For example, add an NFS mount to the compute nodes:

 vi /etc/cfm/compute-rhel/etc/fstab.append
 [ ... create the new entry ...]
 cfmsync -f

You can add any directory to CFM, not just /etc:

 mkdir -p /etc/cfm/compute-rhel/var/cfengine/inputs
 echo "# Crash test dummy" > /etc/cfm/compute-rhel/var/cfengine/inputs/promises.cf
 cfmsync -f

This would create /var/cfengine/inputs.promises.cf on all compute nodes in the compute-rhel group.

IBM Cluster information center: Managing files with Configuration File Manager (CFM)

Backend databases

Red Hat HPC Solution installs both MySQL and PostgreSQL databases for various purposes. Install phpMyAdmin and phpPgAdmin to browse your databases using a web interface. These RPM packages are not available from the standard Yum repositories, so you need to add the EPEL repository. It contains a very good selection of additional software.

Add the EPEL repository (download and install the epel-release RPM), but ensure that it is disabled (enabled=0 in /etc/yum.repos.d/epel.repo). This prevents yum from updating the software packages as provided by Red Hat HPC Solution.

 yum install phpMyAdmin phpPgAdmin --enablerepo=epel

MySQL

Postgresql

Back up the Kusu database. You can create a script in /etc/cron.daily/:

 #!/bin/sh
 # Dump the kusudb database
 
 DUMPDIR=~/backup/kusudb
 DUMPFILE=$(date +%Y%m%d-%H%M%S).dump
 
 [ ! -d ${DUMPDIR} ] && mkdir -p ${DUMPDIR}
 PGPASSWORD=$(cat /opt/kusu/etc/db.passwd) pg_dump -U apache kusudb > ${DUMPDIR}/${DUMPFILE}
 
 # EOF

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