I take it back. send out that email after waiting for a while but now the client came back with an ERROR and all the processes got cleaned up. But it did take a while before failing.
Ranga On Tue, May 3, 2011 at 4:40 PM, Rangababu Chakravarthula <rb...@hexagrid.com > wrote: > Lars > > Thanks for the quick response. I tried to mount with soft option & without > "retrans" option. Still its the same behaviour. The man page says without > "retrans" option, it would try 3 times and fail. However, in my case it > didn't. > > Also there is a note with regard to "soft" option > > > *NB: A so-called "soft" timeout can cause silent data corruption in > certain cases. As such, use the soft option only when client > responsiveness is more important > than data integrity. Using NFS over TCP or increasing the value of the > retrans option may mitigate some of the risks of using the soft option*. > > Still trying to find a solution. > > > Ranga > > > On Tue, May 3, 2011 at 2:52 PM, Lars Kellogg-Stedman < > l...@seas.harvard.edu> wrote: > >> > between all the hosts to allow live migration. If for any reason NFS >> > connection is lost and user tries to create a new VM the following >> > opennebula commands hangs and sits there for over. >> >> What mount options are you using for the storage? In theory if you >> mount with '-o soft', processes blocked on access to the storage will >> eventually get an error. This is from the nfs(5) man page: >> >> If the soft option is specified, then the NFS client fails an >> NFS request after retrans retransmissions have been sent, causing the >> NFS client to return an error to the calling application. >> >> In the sort of situation you describe, there's not really any way for >> OpenNebula to "check the storage connectivity", because any commands >> that attempt to access the storage will get stuck in exactly the same >> way. >> >> -- >> Lars Kellogg-Stedman <l...@seas.harvard.edu> >> Senior Technologist >> Harvard University SEAS >> Academic and Research Computing (ARC) >> > >
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