Cluster stuff (cman, dlm, heartbeat, corosync, openais, pacemaker, drbd, lvm)

[Jakub Bogusz]

On Sun, Jul 01, 2012 at 10:51:13AM +0200, Jacek Konieczny wrote:
> Hello,
> 
> At work we use clusters. Currently based on Heartbeat/PaceMaker/DRBD,
> but I am trying to introduce Corosync and clustered LVM. All based on
> PLD packages??? and I have found a bit of mess in our packages.
> 
> We have both corosync and openais, but our openais is 0.80, not 1.x
> which uses corosync as its lower layer.
> 
> Does anybody still needs openais 0.80?
> 
> LVM by default build with the clvmd daemon, but the daemon is built only 
> for the cman cluster manager. I guess it is part of some RedHat cluster
> suite. There is also a 'clvmd3' bcond which seems to enable building
> with the new version of cluster/cman??? but it doesn't seem it would work.
> 
> Do we need clvmd in the main lvm2 package? It pulls some dependencies
> irrelevant for non-clustered setups.
> Do we need to build it with the 'old cman'? Or should we now use only
> the new packages from 'cluster.spec'?

IMO we should switch to new corosync/openais and cluster/gfs (replacing
its old parts currently existing in separate specs).

> We should probably build LVM2 drivers for other clusters by default -
> corosync/openais.

If they can coexist, then yes.
Old cluster (1.x/2.x) components could be dropped.

(not using such configurations myself - just thinking about flexibility)


-- 
Jakub Bogusz    http://qboosh.pl/