Tuning pacemaker for large clusters

We’ve been running quite a lot of production clusters using pacemaker/corosync for a while. Some of them are large, handling more than 200 resources across multiple nodes and we’ve exceeded some limits on pacemaker’s CIB size. I thought I’d share how to tune your cluster to handle such a bunch of resources since there are […]

pacemaker v1.1.10 & corosync v2.3.1

More than 5 months since the last bump of pacemaker. I’m glad that @beekhof did release the final pacemaker-1.1.10 and that the officially stable corosync got bumped to 2.3.1. The changelogs are quite heavy so I won’t go into details about them but they both have quite a nice bunch of bugfixes and compatibility features. […]

mongoDB and Pacemaker recent bumps

mongoDB 2.4.3 Yet another bugfix release, this new stable branch is surely one of the most quickly iterated I’ve ever seen. I guess we’ll wait a bit longer at work before migrating to 2.4.x. pacemaker 1.1.10_rc1 This is the release of pacemaker we’ve been waiting for, fixing among other things, the ACL problem which was introduced […]

Pacemaker vulnerability and v1.1.9 release

A security vulnerability (CVE-2013-0281) was found on pacemaker which permitted attackers to prevent your cluster from serving more CIB requests. Although this issue was quickly fixed by upstream, they didn’t add a new tag to pacemaker so I did ask Andrew Beekhof for one so I could take care of bug #457572. Gentoo users, here comes pacemaker-1.1.9 […]

Clustering : corosync v1.4.3 & pacemaker v1.1.7 released

I’ve finally taken the time to take care of the corosync and pacemaker ebuilds. The new versions are now available in portage. Corosync 1.4.3 (10/04/2012) This is one of the last supported old stable release of the Corosync Cluster Engine. FYI, I’ve also bumped the new corosync-2.0.0 version but it needs more testing before I […]