[Lustre-discuss] lustre + nfs + alphas

Oleg Drokin Oleg.Drokin at Sun.COM
Wed Dec 12 08:23:26 PST 2007


Hello!

On Dec 11, 2007, at 6:51 PM, Aaron S. Knister wrote:

> This is the strangest problem I have seen. I have a lustre  
> filesystem mounted on a linux server and its being exported to  
> various alpha systems. The alphas mount it just fine however under  
> heavy load the NFS server stops responding, as does the lustre mount  
> on the export server. The weird thing is that if i mount the nfs  
> export on another nfs server and run the same benchmark (bonnie)  
> everything is fine. The lustre mount on the export server can take a  
> real pounding (ive seen it push 300MB/sec) so I don't know why nfs  
> is crashing it.
> On the nfs export server i see these messages--
> Lustre: 4224:0:(o2iblnd_cb.c:412:kiblnd_handle_rx()) PUT_NACK from  
> 192.168.64.70 at o2ib
> LustreError: 4400:0:(client.c:969:ptlrpc_expire_one_request()) @@@  
> timeout (sent at 1197415542, 100s ago)  req at ffff810827bfbc00 x38827/ 
> t0 o36->data-MDT0000_UUID at 192.168.64.70@o2ib:12 lens 14256/672 ref 1  
> fl Rpc:/0/0 rc 0/-22
> Lustre: data-MDT0000-mdc-ffff81082d702000: Connection to service  
> data-MDT0000 via nid 192.168.64.70 at o2ib was lost; in progress  
> operations using this service
> will wait for recovery to complete.

Any messages on mds at this time?

Bye,
     Oleg




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