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

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On Thu, 03 Dec 2009 11:24:42 +0100
Diego Moreno <Diego.Moreno-Lazaro@xxxxxxxx> wrote:

> 
> 
> Jeff Layton wrote:
> > 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?
> > 
> 
> That's right Jeff. Uninstalling and reinstalling nfs-utils everything 
> worked fine and now statd files are there with locks working as they should.
> 
> Thanks!
> 

Strange. Were these machines fresh installs, or were they upgrades from
an earlier fedora release?

-- 
Jeff Layton <jlayton@xxxxxxxxxx>
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