Lustre discuss - Jul 2007 - Lustre 1.4.10.1 Question

All,

If I shutdown my MDS/OSS before unmounting a client, how can force the client to
time-out and umount the filesystem.

Thanks,
Mahmoud

       
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On Jul 12, 2007  08:00 -0700, Mahmoud Hanafi wrote:
> If I shutdown my MDS/OSS before unmounting a client, how can force the
client to time-out and umount the filesystem.
You can do "umount -f" on the client, but otherwise there is no way to
do this currently.  To the client it is no different than if the MDS/OSS
crashed, and it will wait for them to restart.  In fact some customers
stop the MDS/OSS, update Lustre, and then restart it without even stopping
the applications running on the clients.  Then, they can schedule a job
on each of the nodes to upgrade Lustre on the client the next time it is
available (i.e. no job is running).

Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.