HOW TO: Unmounting a NFS mount on a server when the mounted server has gone down, causing the applications thread to hang up.

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HOW TO: Unmounting a NFS mount on a server when the mounted server has gone down, causing the applications thread to hang up.

It is a problem area which we have faced a lot which causes the services and server to hang up whenever a server which is mounted on another Liux server goes down.

Hi Above,

I've an nfs server and from a client i am using a volume on it,
but on the server i want to unmount the volume which is mounted on a remote machine.
i did:
comment the corresponding partition in /etc/exports and run
exportfs -r
now when i try umount <partition name> it says me device or resource busy?
what is work around here?

thanks
Anurag

Hi Rahul,

Thanks for trick of adding a virtual IP.

Regards,
Devendra Koli

Originally Posted by devendrakoli Hi Rahul, Thanks for trick of adding a virtual IP. Regards, Devendra Koli

I tried this trick and can get some of the commands unlocked. However unmounting I get "Stale file handle". The unmount -f and -l combinations give the same "stale file handle"

Any ideas?