I am unable to unmount file system from the client. The (test) installation is a single node type with MDS-OST-client running on same machine. Following are the error messages with umount command (even with -f): --- --- umount: /mnt/lustre: device is busy umount: /mnt/lustre: device is busy (device/resource busy with -f option) --- --- What process might be accessing the device? The ''ps -aux'' showed me lot of lustre related processes, so I am not sure which one should be killed (if necessary). Any hints? Thanks, CS. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.lustre.org/pipermail/lustre-discuss/attachments/20090616/bde5f99f/attachment.html
On Jun 16, 2009, at 9:17 PM, Carlos Santana wrote:> I am unable to unmount file system from the client. The (test) > installation is a single node type with MDS-OST-client running on > same machine. Following are the error messages with umount command > (even with -f): > > --- --- > umount: /mnt/lustre: device is busy > umount: /mnt/lustre: device is busy > > (device/resource busy with -f option) > --- --- > > What process might be accessing the device?You can use lsof or fuser to get the list of processes using the filesystem. Cheers, Johann
The fuser does not give any process list - "Cannot stat /mnt/lustre: Cannot send after transport endpoint shutdown" - Thanks, CS. On Tue, Jun 16, 2009 at 3:51 PM, Johann Lombardi <johann at sun.com> wrote:> On Jun 16, 2009, at 9:17 PM, Carlos Santana wrote: > >> I am unable to unmount file system from the client. The (test) >> installation is a single node type with MDS-OST-client running on same >> machine. Following are the error messages with umount command (even with >> -f): >> >> --- --- >> umount: /mnt/lustre: device is busy >> umount: /mnt/lustre: device is busy >> >> (device/resource busy with -f option) >> --- --- >> >> What process might be accessing the device? >> > > You can use lsof or fuser to get the list of processes using the > filesystem. > > Cheers, > Johann >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.lustre.org/pipermail/lustre-discuss/attachments/20090616/a3438f57/attachment.html