NFS autoFS won't release mount point

[Gerald Taylor]

We have N-class server runnin HPUX 11.11 There are several system's for which we use autoFS to access NFS shared directories. The wierd thing is on HPUX 11.00 systems when we access the mount point it shows up in "bdf" but then disappears after some time. On two of our 11.11 they never go away. I tried to find if there was a process still using a file or something of that sort but it appears there is not. There is no output from:

fuser -cu /net/server/mountpoint
or
fuser -u servername:mountpoint

No output for both commands. Any ideas?

[Alex Lavrov.]

What about "lsof /path/to/filesystem" ?

If you try to unmount it, so you get any messages?

[Gerald Taylor]

Tried lsof also I get no output.

[Alex Lavrov.]

What about umount?

[Gerald Taylor]

umount actually does umount the filesystem. Shouldn't the autoFS perform this for me?

Gerald

[Alex Lavrov.]

If you can unmount withour problems, it means that noone uses it, so it's probably misconfiguration of autoFS


can you post here the conf files? (/etc/auto_master, direct etc)

[Steven E. Protter]

Your command output shows no processes open.

what does nfsstat show?

I agree with Alex. If you can umount there isn't a process with a filehandle on the filesystem.

SEP

[Rick Garland]

You have a misconfiguration of the map file(s) for autoFS.

[Gerald Taylor]

the /etc/auto_master

/net -hosts -nosuid,soft

It only has the the above line.

nfsstat -m shows all the mounts that are shown with the "bdf" command. Attached is a nfsstat command results.

[Pete Randall]

Gerald,

What's your patch level?

# swlist |grep -i nfs
PHNE_29883 1.0 ONC/NFS General Release/Performance Patch

This is one from one of my 11.11 systems running autoFS that is not showing the symptoms you describe.


Pete

[Gerald Taylor]

It appears I have several nfs related patches:
# swlist -l product | grep -i nfs
NFS B.11.11 ONC/NFS; Network-File System,Information Services,Utilities
PHKL_25238 1.0 11.00 NFS nfsd deadlock
PHKL_25993 1.0 thread nostop for NFS, rlimit, Ufalloc fix
PHKL_27266 1.0 iCOD,RTSCHED,(u)mount,final close,NFS umount
PHKL_28185 1.0 Tunable;vxportal;vx_maxlink;DMAPI NFS hang
PHKL_29335 1.0 vx_nospace on NFS write.
PHNE_29783 1.0 ONC/NFS General Release/Performance Patch