2008/6/4 Serge Dubrouski <[EMAIL PROTECTED]>:
> On Tue, Jun 3, 2008 at 9:53 AM, Xinwei Hu <[EMAIL PROTECTED]> wrote:
>> 2008/6/3 Serge Dubrouski <[EMAIL PROTECTED]>:
>>> I found it, though it was a commit for nfsexport.sh. One thing isn't
>>> clear though.
>>>
>>> Now they prefer to bind /var/lib/nfs to a subdir under exported
>>> filesystem. How do they support multiple NFS resources in this case?
>>> How do they support an active/active configuration meaning 2 active
>>> NFS severs serving different resources but able to take over each
>>> other?
>> No, they can't.
>
> What was the reason to deprecate clurmtabd then? It was able to solve
> an active/active problem all right.
No, it didn't.
>>
>> For what you need, an RA for _exportfs_ will depend on an newly
>> introduced kernel interface
>> via /proc/fs/nfsd/unlock_filesystem.
>> And also depends on a scripts passed back to rpc.statd.
>>
>
> How will it help to sync rmtab files between nodes in cluster?  From
> what I see /proc/fs/nfsd/unlock_ip and
> /proc/fs/nfsd/unlock_filesystem will help with clearing locks not to
> preserve client mount information.
This is critical cause otherwise you have to shutdown whole nfsd to
umount the filesystem.

For rmtab, you can do it with rpc.mountd -H if needed.
> --
> Serge Dubrouski.
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