Clustering : corosync v2.1.0 & pacemaker v1.1.8

I recently bumped quite a bunch of the clustering suite packages such as :

  • sys-cluster/cluster-glue-1.0.11
  • sys-cluster/libqb-0.14.3
  • sys-cluster/corosync-1.4.4
  • sys-cluster/corosync-2.1.0
  • sys-cluster/crmsh-1.2.1 (new package)

corosync-2.1.0

You should be aware that the corosync-2.x packages are still hard masked because the 2.0.x ones didn’t compile properly and we didn’t have a suitable pacemaker version for it to work with.

There is another thing for us to consider and handle in the ebuilds when we’ll be willing to release corosync-2 : it is not backward compatible ! So yes, you will either have to start with a fresh cluster or break your existing ones to migrate to corosync-2. The reason is that upstream decided to drop the plugins support from their software. So a non-plugin cluster cannot work with a plugin-enabled one.

pacemaker-1.1.8

As for pacemaker-1.1.8, the bump request took quite some time. The reason is that it was released without backward compatibility support as well so you couldn’t join your existing pacemaker-1.1.x cluster even when using corosync-1.x ! I found it unacceptable because this meant I would have to force for corosync-2 usage starting from pacemaker-1.1.8 for no real reason. Pacemaker upstream, namely Andrew Beekhof, is very responsive and kind so he offered a solution which I’m happy to provide to Gentoo users.

crmsh-1.2.1

The crm command is not included in the pacemaker sources anymore. It is now an independent project lead by Dejan Muhamedagic to allow more versatility in its development and a better iteration of releases. I packaged and released it along with pacemaker-1.1.8 as well.

Todo

I’m still slacking on the sys-cluster/resource-agents package unfortunately. I already discussed with upstream about it as it’s not a straightforward bump because they merged two different resource-agents developments. I think to have a pretty good idea of what needs to be done and will do my best to fix this gap as soon as I can.

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