Re: Managed Failovers w/ NFS HA Cluster

Dmitri Maziuk <[email protected]>
Newsgroups gmane.linux.highavailability.user
Message-ID <[email protected]> 
On 7/17/2014 10:24 AM, Charles Taylor wrote:
> When performing managed failovers of the NFS-exported file system
resource from one node to the other (crm resource move), any active NFS
clients experience an I/O error when the file system is unexported. In
other words, you must unexport it to unmount it. As soon as it is
unexported, clients are no longer able to write to it and experience an
I/O error (rather than just blocking).

FWIW that doesn't happen here w/ nfs v3, /var/lib/nfs on drbd, heartbeat 
in r1 mode on the servers, and automounter on the clients.

Dima

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