Is it a second, as in, "just a sec"? :)
This could be the result of using the default cluster timeouts
which were fairly low. Refer the Cluster timeout section in the
FAQ for details. You should be able to bump up the disk heartbeat
threshold as recommended. For network timeouts, you will need
to upgrade to 2.6 20, if not 2.6.21.
We are currently working on adding support for extended attributes.
Sunil
Nick Couchman wrote:
Two questions (and then a bonus one), kind of interrelated, but,
first, some basic info. I'm using OCFS2 on OpenSUSE 10.2, kernel
2.6.18.8(-0.7). There are three nodes in the OCFS2 cluster, backed by
Openfiler iSCSI storage.
First, I'm using Openfiler and iSCSI volumes to back my OCFS2 file
system. The nodes that are part of the OCFS2 cluster use the file
system as a shared storage area for VMware Virtual Machines. I'm
experiencing a problem, though, with the Openfiler setup. When you
create a new iSCSI volume in Openfiler, it restarts the iSCSI
Enterprise Target daemon (ietd). This causes the OCFS2 nodes to see a
problem on the iSCSI storage. The problem usually lasts around a
second - only as long as it takes the daemon to restart and the nodes
to attempt the next connection. OCFS2 seems to have a big problem
with this and causes the machines to crash.
My second question is related to the end of the first one. Is there
any way to keep the node from completely dying if there is a problem
with the storage, FS, etc.? I don't have any fancy remote power
setups or remote management cards, so when I create new volumes in
Openfiler I have to be physically near the servers so that I can hard
reset them should OCFS2 crash and bring the entire kernel down with
it. I realize there are issues with maintaining the integrity of the
data, but maybe someone can point me in the direction of some way to
keep the nodes alive longer before they just completely kernel panic
and die.
Finally, unrelated - could someone update me on the status of POSIX
ACLs in OCFS2? This is the only thing that is keeping me from using
OCFS2 on a wide basis in my organization, but it is a major
roadblock. Also, it seems that it has been on the roadmap for quite
some time, and I was wondering if any progress has been made toward
implementing ACLs on OCFS2.
Thanks, in advance, for any help/insight anyone can provide!
--Nick
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