[Linux-cluster] umount failing...

Corey Kovacs corey.kovacs at gmail.com
Thu Jun 16 08:18:19 UTC 2011

My appologies for not getting back sooner. I am in the middle of a move.

I cannot post my configs or logs (yeah, not helpful I know) but
suffice it to say I strongly believe they are correct (I know,
everyone says that). I've had other people look at them just make sure
it wasn't a case of proofreading my own paper etc. and it always comes
down to the umount failing. I have 6 other identical NFS services
(save for the mount point/export location) and they all work
flawlessly. That's why I am zeroing in on the use of '/home' as the

Anyway, it's not a lot to go on I know, but I am just looking for
directions to search for now.



On Mon, Jun 13, 2011 at 11:44 AM, Rajveer Singh
<torajveersingh at gmail.com> wrote:
> On Thu, Jun 9, 2011 at 8:22 PM, Corey Kovacs <corey.kovacs at gmail.com> wrote:
>> Folks,
>> I have a 5 node cluster serving out several NFS exports, one of which is
>> /home.
>> All of the nfs services can be moved from node to node without problem
>> except for the one providing /home.
>> The logs on that node indicate the umount is failing and then the
>> service is disabled (self-fence is not enabled).
>> Even after the service is put into a failed state and then disabled
>> manually, umount fails...
>> I had noticed recently while playing with conga that creating a
>> service for /home on a test cluster a warning was issued about
>> reserved words and as I recall (i could be wrong) /home was among the
>> illegal parameters for the mount point.
>> I have turned everything off that I could think of which might be
>> "holding" the mount and have run the various iterations of lsof, find
>> etc. nothing shows up as having anything being actively used.
>> This particular file system is 1TB.
>> Is there something wrong with using /home as an export?
>> Some specifics.
>> RHEL5.6 (updated as of last week)
>> HA-LVM protecting ext3 using the newer "preferred method" with clvmd
>> Ext3 for exported file systems
>> 5 nodes.
>> Any ideas would be greatly appreciated.
>> -C
> Can you share your log file and cluster.conf file
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