topic Re: NFS server not responding still trying Issue in Operating System - HP-UX

NFS server not responding still trying Issue

Subentu — Mon, 09 Aug 2010 08:54:04 GMT

We get the following messages in our syslog from time to time (Rx7620 machine running HP-UX 11.23i)

Aug 9 10:33:51 wbscsp01 vmunix: NFS server 192.168.1.3 not responding still trying
Aug 9 10:33:51 wbscsp01 vmunix: NFS server 192.168.1.3 ok

Aug 9 14:15:47 wbscsp01 nfsd[7422]: Number of servers not specified. Using default of 2.
Aug 9 14:15:47 wbscsp01 nfsd[7422]: Setting STREAMS-HEAD high water value to 65536.
Aug 9 14:15:47 wbscsp01 nfsd[7424]: nfsd do_one mpctl succeeded: ncpus = 8.
Aug 9 14:15:47 wbscsp01 nfsd[7424]: nfsd do_one pmap 2
Aug 9 14:15:47 wbscsp01 nfsd[7424]: nfsd do_one pmap 3
Aug 9 14:15:47 wbscsp01 nfsd[7424]: Number of NFS server daemons increased to 8 in order to cover all processors.
Aug 9 14:15:47 wbscsp01 nfsd[7425]: nfsd do_one bind 0
Aug 9 14:15:47 wbscsp01 nfsd[7426]: nfsd do_one bind 1
Aug 9 14:15:47 wbscsp01 nfsd[7427]: nfsd do_one bind 2
Aug 9 14:15:47 wbscsp01 nfsd[7428]: nfsd do_one bind 3
Aug 9 14:15:47 wbscsp01 nfsd[7429]: nfsd do_one bind 4
Aug 9 14:15:47 wbscsp01 nfsd[7430]: nfsd do_one bind 5
Aug 9 14:15:47 wbscsp01 nfsd[7424]: nfsd do_one bind 7
Aug 9 14:15:47 wbscsp01 nfsd[7431]: nfsd do_one bind 6
Aug 9 14:15:47 wbscsp01 nfsd[7423]: t_bind failed: t_errno 23, Error 0
Aug 9 14:15:47 wbscsp01 nfsd[7423]: Cannot establish NFS service over tcp: transport setup problem.
Aug 9 14:15:47 wbscsp01 nfsd[7426]: Return from t_optmgmt(XTI_DISTRIBUTE) 0
Aug 9 14:15:47 wbscsp01 nfsd[7424]: Return from t_optmgmt(XTI_DISTRIBUTE) 0
Aug 9 14:15:47 wbscsp01 nfsd[7426]: nfsd 1 0 sock 4
Aug 9 14:15:47 wbscsp01 nfsd[7424]: nfsd 7 0 sock 4
Aug 9 14:15:47 wbscsp01 nfsd[7425]: Return from t_optmgmt(XTI_DISTRIBUTE) 0
Aug 9 14:15:47 wbscsp01 nfsd[7425]: nfsd 0 0 sock 4
Aug 9 14:15:47 wbscsp01 nfsd[7431]: Return from t_optmgmt(XTI_DISTRIBUTE) 0
Aug 9 14:15:47 wbscsp01 nfsd[7431]: nfsd 6 0 sock 4
Aug 9 14:15:47 wbscsp01 nfsd[7428]: Return from t_optmgmt(XTI_DISTRIBUTE) 0
Aug 9 14:15:47 wbscsp01 nfsd[7428]: nfsd 3 0 sock 4
Aug 9 14:15:47 wbscsp01 nfsd[7427]: Return from t_optmgmt(XTI_DISTRIBUTE) 0
Aug 9 14:15:47 wbscsp01 nfsd[7427]: nfsd 2 0 sock 4
Aug 9 14:15:47 wbscsp01 nfsd[7430]: Return from t_optmgmt(XTI_DISTRIBUTE) 0
Aug 9 14:15:47 wbscsp01 nfsd[7430]: nfsd 5 0 sock 4
Aug 9 14:15:47 wbscsp01 nfsd[7429]: Return from t_optmgmt(XTI_DISTRIBUTE) 0
Aug 9 14:15:47 wbscsp01 nfsd[7429]: nfsd 4 0 sock 4

What can be the cause for this problem? What should I check/change ?

Re: NFS server not responding still trying Issue

F Verschuren — Mon, 09 Aug 2010 10:37:19 GMT

Pls check the /etc/rc.config.d/nfsconf for below parameter,

NUM_NFSD=16
NUM_NFSIOD=16

==================================
OR better post nfsconf here

Re: NFS server not responding still trying Issue

Subentu — Mon, 09 Aug 2010 10:45:07 GMT

NFS_CLIENT=1
NFS_SERVER=1
NUM_NFSD=16
NUM_NFSIOD=18
PCNFS_SERVER=0

nfsconf is attached.

Re: NFS server not responding still trying Issue

F Verschuren — Mon, 09 Aug 2010 10:52:46 GMT

does nfs works? if not check you resolving

Re: NFS server not responding still trying Issue

Subentu — Mon, 09 Aug 2010 10:54:44 GMT

nfs works. Its only that some applications that run on nfs mounted systems get hanged when the error comes.

Re: NFS server not responding still trying Issue

nightwich — Tue, 10 Aug 2010 15:07:02 GMT

Hi Subentu ..

You need to detail your problem. So we could undertand exacly were could be the error.

So you need to tell. What is your server ( model o.s. name ) What is your client ( model o.s. name ).

The NFS hangs ( start now or always have this strange bievior ) .

Please post more details then maybe we can help.

With that information, I advice to do a restart to the NFS services and see if the problem maintains.

Regards.

Angelo Sousa.

Re: NFS server not responding still trying Issue

Viktor Balogh — Tue, 10 Aug 2010 23:31:55 GMT

Hi Subentu,

From your logs I think it's a stale NFS which you get in every now and then, and then it comes back. Check your network connection to that NFS server, maybe the flapping is there.

Regards,
Viktor