Timeout when using Ricci as the backend for Corosync update in Redhat Cluster

When using Ricci as the engine for ‘cman_tool version -r’ command, you will experience timeouts (and practically – you will be unable to use ricci to update the cluster configuration across the nodes) when the ricci user password contains XML-sensitive characters, like <>&, etc. As they say – FYI 🙂

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RedHat cluster on RHEL6 and KVM-based VMs

The concept of running a virtual machine, KVM-based, in this case, under RHCS is acceptable and reasonable. The interesting part is that the <vm/> directive replaces the <service/> directive and acts as a high-level directive for VMs. This allows for things which cannot be performed with regular ‘service’, such as live migration. There are probably…

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RedHat Cluster custom Oracle “Agent”/script V1.0

Working with RH Cluster quite a lot, I have decided to create an online store of customer agents/scripts. I have not, so far, invested the effort of making these agents accept settings from the cluster.conf file, but this might happen. Let the library be! Oracle DB script/agent: Although I discovered (a bit late) that RH…