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06-30-2004 11:52 PM
06-30-2004 11:52 PM
machine hangs - SLES9/NFS
Hello,
I am looking answers for the following questions.
Is nfs file lock acquired by client, persistent across the nfs server reboot?
I know that this feature was not there in NFSv3. Does NFSv4 supports this?
Following is the exercise which I did to test nfs file lock.
I have two machines. One among them is the NFS server running on SLES9(kernel 2.6.5-7.79). The other machine mounts the NFS exported filesystem.
I have written a application which locks the files over this nfs mount.
After acquiring the lock, I am restarting the nfs service using "rcnfsserver restart" command.
After the nfs service restart, the client fails to release the lock and is in a hung state. If the mount directory is listed, it shows
"bash: cd: /export: Stale NFS file handle"
After this behavior of the client, server stops responding. Only way to bring back the machine is reboot.
Any help is really appreciated.
Thanks & regards
Shylendra
I am looking answers for the following questions.
Is nfs file lock acquired by client, persistent across the nfs server reboot?
I know that this feature was not there in NFSv3. Does NFSv4 supports this?
Following is the exercise which I did to test nfs file lock.
I have two machines. One among them is the NFS server running on SLES9(kernel 2.6.5-7.79). The other machine mounts the NFS exported filesystem.
I have written a application which locks the files over this nfs mount.
After acquiring the lock, I am restarting the nfs service using "rcnfsserver restart" command.
After the nfs service restart, the client fails to release the lock and is in a hung state. If the mount directory is listed, it shows
"bash: cd: /export: Stale NFS file handle"
After this behavior of the client, server stops responding. Only way to bring back the machine is reboot.
Any help is really appreciated.
Thanks & regards
Shylendra
1 REPLY 1
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07-30-2004 06:00 PM
07-30-2004 06:00 PM
Re: machine hangs - SLES9/NFS
Probably the server stopped due to excessive CPU load. Can you SSH into the `hung server' and a do a top on that? Kill the runaway process cleanly using SIGKILL. There might not be a need to reboot, start the killed server process again.
Debian GNU/Linux for the Enterprise! Ask HP ...
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