[Linux-cluster] RHCS TestCluster with ScientificLinux 5.2
Lon Hohberger
lhh at redhat.com
Fri Sep 18 18:25:59 UTC 2009
On Thu, 2009-09-17 at 07:30 +0200, Rainer Schwierz wrote:
> Hello,
>
> hmm, meanwhile the fence_apc problem is fixed by a more recent version
> of fence_apc.
>
> But the nfs lock problem is still open. Does it mean I definitely
> should not use ScientificLinux and switch to Fedora 11 or RHEL5.4?
When doing a multi-export of the same NFS file system on top of GFS,
lock recovery will not work correctly - there's no way to prevent a new
GFS lock from being taken after a failure but before NFS has sent the
lock reclaim notifications, nor is there a way for GFS to respect the
NFS lock reclaim grace period.
I do not know why you would have this particular problem, though - locks
shouldn't randomly "not work at all" just because you take them from a
service IP address vs. the host's real IP. Maybe there's some IPtables
firewall rule in place ?
-- Lon
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