2009/9/15 Michael Schwartzkopff <[email protected]>: > Am Montag, 14. September 2009 18:54:36 schrieb Ciro Iriarte: >> 2009/9/14 Timo Schoeler <[email protected]>: >> > -----BEGIN PGP SIGNED MESSAGE----- >> > Hash: SHA1 >> > > (...) >> Can you elaborate on you cyrus + cluster experience? (maybe out of >> band if it's OT), OCFS2 1.4.0 supports shared writeable mmap now, >> which seems all that is needed to run cyrus on top of it. >> >> Regards, > > Hi, > > I never build a mail server cluster myself, but severeral others. I would be > pretty caucious to use cluster filesystems. There are few distributions
I'm not really confident yet as i've no heard of cyrus on top of OCFS2. The requirement from management is to have a active/active cluster for that task. > (SLES11, ...) which support it out of the box. You would have to search for We have SLES10SP2 available... > unsupported repositories. Better use NFS. ( NFS Server on the cluster and both > nodes are NFS clients) > > If you want to use OCFS2, be sure to use the distributed lock manager (dlm) Is that configurable? > and make o2cb use the pacemaker stack for communicataion. This also needs a > recent kernel. I've setup linuxha+pacemaker+ocfs2 before, but just for flat files or specifically Oracle datafiles... > > >> Is that configuration reliable?, have you used it in production?. >> Would that be better thatn ClusterIP?. Sounds great to drop that SPOF. > > ClusterIP also does not have a SPoF. But LVS has some advantages over like I've seen some concerns expressed on the link you have before, like management complexity and failover issues. > - persistancy: All clients use the same server within a time frame, not only > in a TCP connection > - forwarding based on "Weighted least connection", nut just round robin. > - phase out real servers with a weight of "0". No new connections are > forwarded to that server, but packages for established connections are. Ideal > for maintainance. > > Greetings, Michael. > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems > -- Ciro Iriarte http://cyruspy.wordpress.com -- _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
