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 <[email protected]>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 <[email protected]> > Senior Technologist > Harvard University SEAS > Academic and Research Computing (ARC) > -- *Rangababu Chakravarthula VP Product Development Hexagrid Computing, Inc. (o) 636.590.2211 (c) 402.203.2960 (f) 888.817.3385 **[email protected] <your%[email protected]>** rchakra1 rangababu rbchak As a leading developer of IT infrastructure software solutions, Hexagrid Computing Inc. built the first cloud enabling platform directly aligned with real-world IT delivery models—a revolutionary approach to Infrastructure as a Service (IaaS) that truly simplifies virtual IT management. Hexagrid provides all the software and support that IT organizations need to successfully build private/public clouds to fit their specific business and end-user requirements. It’s Your Cloud, Own It! From basic everyday computing to intensive high-powered operations, Hexagrid IaaS cloud computing solutions enable companies to immediately generate profits by reducing costs and increasing efficiencies. For more information visit ** www.hexagrid.com**.*
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