On 02/05/2013, at 8:21 AM, Andrew Martin <amar...@xes-inc.com> wrote:
> ----- Original Message ----- >> From: "Robert Parsons" <rpars...@tappublishing.com> >> To: "The Pacemaker cluster resource manager" <pacemaker@oss.clusterlabs.org> >> Sent: Wednesday, May 1, 2013 4:03:46 PM >> Subject: [Pacemaker] Pacemaker/Corosync on Ubuntu 12.04 >> >> >> >> We're wanting to build a web server farm with approx 18 nodes. We're >> aware of scalability issues with Corosync/Pacemaker but we're also >> told >> that it is getting better with newer versions of the software. Ubuntu >> 12.04 is packaged with corosync 1.4.2 and pacemaker 1.1.6. I imagine >> that we'll probably need to remove the packages and compile from >> source >> to get the later versions. What is the latest version suitable for >> production? I'd suggest a 1.1.10 release candidate. I would have said 1.1.9 but there were some unfortunate memory leaks :-( >> >> Also, does anyone have any suggestion for tuning Corosync to scale to >> 18-24 nodes, running 18 services? Generally you just want to back off on the token/membership timeouts. >> >> Thanks for any help. >> >> -- >> Robert Parsons >> Chief Information Officer >> TAP Publishing Company >> 174 Fourth St >> Crossville, TN 38557-0509 >> 931-484-5137 >> >> >> _______________________________________________ >> Pacemaker mailing list: Pacemaker@oss.clusterlabs.org >> http://oss.clusterlabs.org/mailman/listinfo/pacemaker >> >> Project Home: http://www.clusterlabs.org >> Getting started: >> http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf >> Bugs: http://bugs.clusterlabs.org >> > Robert, > > I have also been using Ubuntu 12.04 for Corosync/Pacemaker clusters. I've > found > that the feature series (1.1.x) of Pacemaker has too many changes/bugs to be > used > in a production environment, so I am waiting for the next stable series, > 1.2.0. Development on 1.1 is really winding down, I dare say 1.1.10 will be very close to 1.2.0 > I > have also been working to build updated packages of Corosync and Pacemaker for > Ubuntu 12.04, which you can find in this PPA: > https://launchpad.net/~asmartin/+archive/cluster-stable > > The Corosync 2.x series has some important improvements regarding quorum and > membership data, so it is the version I would prefer to use in clusters going > forward. See this article for more information: > http://blog.clusterlabs.org/blog/2012/pacemaker-and-cluster-filesystems/ > > Thanks, > > Andrew > > _______________________________________________ > Pacemaker mailing list: Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/mailman/listinfo/pacemaker > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
