Re: rpc.statd problem: lockd: cannot monitor server

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On Wed, 02 Dec 2009 11:22:49 +0100
Diego Moreno <Diego.Moreno-Lazaro@xxxxxxxx> wrote:

> 
> 
> Chuck Lever wrote:
> > On Dec 1, 2009, at 12:14 PM, Diego Moreno wrote:
> >> Hi guys,
> >>
> >> We are having a problem with locks in NFSv3 with Fedora11. I've been 
> >> searching this problem in the list for a while but I haven't found it.
> >>
> >> The problem is in Fedora11, kernel 2.6.29.6-217.2.16.fc11 and 
> >> nfs-utils-1.1.5-6.fc11
> >>
> >> When I try to make two locks with two different process I get the 
> >> message "No locks available". rpc.statd is running on client and 
> >> server, also lockd. If I try with just one process I obtain the same 
> >> result.
> >>
> >> I tried to debug with wireshark and I can see client is not trying to 
> >> make a lock. I also tried to enable NLM debug and I get next messages:
> >>
> >> Syslog:
> >>
> >> 1259574201 2009 Nov 30 10:43:21 myclient kern warning kernel lockd: 
> >> get host myserver
> >> 1259574201 2009 Nov 30 10:43:21 myclient kern warning kernel lockd: 
> >> get host myserver
> >> 1259574201 2009 Nov 30 10:43:21 myclient kern warning kernel lockd: 
> >> nsm_monitor(myserver)
> >> 1259574201 2009 Nov 30 10:43:21 myclient kern warning kernel lockd: 
> >> get host myserver
> >> 1259574201 2009 Nov 30 10:43:21 myclient kern warning kernel lockd: 
> >> get host myserver
> >> 1259574201 2009 Nov 30 10:43:21 myclient kern warning kernel lockd: 
> >> nsm_monitor(myserver)
> >> 1259574201 2009 Nov 30 10:43:21 myclient kern warning kernel lockd: 
> >> xdr_dec_stat_res status 1 state -1
> >> 1259574201 2009 Nov 30 10:43:21 myclient kern notice kernel lockd: 
> >> cannot monitor myserver
> >> 1259574201 2009 Nov 30 10:43:21 myclient kern warning kernel lockd: 
> >> release host myserver
> >> 1259574201 2009 Nov 30 10:43:21 myclient kern warning kernel lockd: 
> >> release host myserver
> >> 1259574201 2009 Nov 30 10:43:21 myclient daemon warning rpc.statd 
> >> creat(/var/lib/nfs/statd/sm/myserver) failed: No such file or directory
> >> 1259574201 2009 Nov 30 10:43:21 myclient daemon notice rpc.statd 
> >> STAT_FAIL to myclient for SM_MON of 10.0.4.60
> >> 1259574201 2009 Nov 30 10:43:21 myclient daemon warning rpc.statd 
> >> creat(/var/lib/nfs/statd/sm/myserver) failed: No such file or directory
> > 
> > Statd can't create the monitor record for this remote peer for some 
> > reason.  Check that /var/lib/nfs/statd and /var/lib/nfs/statd/sm exist, 
> > and are permitted so that rpc.statd can create files in it.  Check which 
> > uid and gid statd is running under: I think F11 uses 29 for both.
> >
> 
> Thanks Chuck. That made the trick. Directory /var/lib/nfs/statd/ was 
> empty in client and server. Adding these directories locking works. But 
> it's just a workaround as I have 30 more clients having the same 
> problem. I'm going to try to find out why this is happening. Maybe it is 
> a bug in fedora installation? When are supposed the files under 
> "/var/lib/nfs/statd/" to be created?
> 
> statd is running under the right uid and gid and /var/lib/nfs/statd is 
> owned by rpcuser as it should be.
> 

Sounds like a packaging bug, but when I look at CVS for that nfs-utils
version it looks ok:

%files

[...]

%dir %attr(700,rpcuser,rpcuser) /var/lib/nfs/statd
%dir %attr(700,rpcuser,rpcuser) /var/lib/nfs/statd/sm
%dir %attr(700,rpcuser,rpcuser) /var/lib/nfs/statd/sm.bak

...if you uninstall and reinstall the nfs-utils package on one of these
hosts, do these directories get put in place correctly?

-- 
Jeff Layton <jlayton@xxxxxxxxxx>
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