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

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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!

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