* Problem with NFSv4 (server: NetApp-Filer, client openSUSE-11.4, 12.1 and 12.2)
@ 2012-10-09 13:59 David Werner
2012-10-09 14:21 ` Emmanuel Florac
` (2 more replies)
0 siblings, 3 replies; 10+ messages in thread
From: David Werner @ 2012-10-09 13:59 UTC (permalink / raw)
To: linux-nfs
Hi,
We have a serious problem to use NFS v4 with recent openSUSE versions.
Provided that I have write permission to the directory I touch, I can do
the following for getting a stale file handle:
> touch ..
> ls
ls: cannot open directory .: Stale NFS file handle
This makes the filesystem quite unusable, as anything which touches a
directory above (like writing a file) can stop an application.
If I leave the directory and cd into it again, it content is listable.
>From our computing center that the server runs I got the information
that it is NetApp ONTAP 7.3.6P4.
I observed the problem here with openSUSE-11.4 (kernel: 2.6.37.6-0.20-desktop),
openSUSE-12.1 (kernel: 3.4.4-1-desktop), openSUSE-12.2 (kernel: 3.4.6-2.10-desktop)
and all x86_64 architecture but _not_ with openSUSE-11.3 (kernel: 2.6.34.10-0.6-desktop).
We use NFSv4 without encryption and userdata from NIS.
I'm looking for suggestions to resolve this problem.
Best regards, David
--
David Werner
Universitaet Stuttgart
Institut für Wasser- und Umweltsystemmodellierung
Lehrstuhl fuer Hydromechanik & Hydrosystemmodellierung
Pfaffenwaldring 61 ** 70569 Stuttgart
Tel.: ++49-711-685 67010 ** Fax: ++49-711-685 60430
david.werner@iws.uni-stuttgart.de
http://www.hydrosys.uni-stuttgart.de/
^ permalink raw reply [flat|nested] 10+ messages in thread* Re: Problem with NFSv4 (server: NetApp-Filer, client openSUSE-11.4, 12.1 and 12.2) 2012-10-09 13:59 Problem with NFSv4 (server: NetApp-Filer, client openSUSE-11.4, 12.1 and 12.2) David Werner @ 2012-10-09 14:21 ` Emmanuel Florac 2012-10-09 15:09 ` David Werner 2012-10-10 15:04 ` David Werner 2012-10-11 14:20 ` David Werner 2 siblings, 1 reply; 10+ messages in thread From: Emmanuel Florac @ 2012-10-09 14:21 UTC (permalink / raw) To: David Werner; +Cc: linux-nfs Le Tue, 9 Oct 2012 15:59:19 +0200 David Werner <david.werner@iws.uni-stuttgart.de> écrivait: > I'm looking for suggestions to resolve this problem. Did you try mounting the export with the noac option? -- ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | <eflorac@intellique.com> | +33 1 78 94 84 02 ------------------------------------------------------------------------ ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: Problem with NFSv4 (server: NetApp-Filer, client openSUSE-11.4, 12.1 and 12.2) 2012-10-09 14:21 ` Emmanuel Florac @ 2012-10-09 15:09 ` David Werner 2012-10-09 16:15 ` Emmanuel Florac 0 siblings, 1 reply; 10+ messages in thread From: David Werner @ 2012-10-09 15:09 UTC (permalink / raw) To: linux-nfs Hi Emmanuel, Mount shows the following options which resulted from "defaults,_netdev" in fstab: rus4iws.rus.uni-stuttgart.de:/vol/rus4iws_data0/ on /home type nfs4 (rw,relatime,vers=4.0,rsize=65536,wsize=65536,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=129.69.98.101,local_lock=none,addr=129.69.201.103,_netdev) I now also tried with "noac" and without _netdev (where I forgot its meaning .. I think it was a recommendation to cirumvent some systemd boot problem) like the following: rus4iws.rus.uni-stuttgart.de:/vol/rus4iws_data0/ on /home type nfs4 (rw,relatime,sync,vers=4.0,rsize=65536,wsize=65536,namlen=255,acregmin=0,acregmax=0,acdirmin=0,acdirmax=0,hard,noac,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=129.69.98.101,local_lock=none,addr=129.69.201.103) But it did not resolve anything. Best regards, David ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: Problem with NFSv4 (server: NetApp-Filer, client openSUSE-11.4, 12.1 and 12.2) 2012-10-09 15:09 ` David Werner @ 2012-10-09 16:15 ` Emmanuel Florac 2012-10-09 19:27 ` David Werner 0 siblings, 1 reply; 10+ messages in thread From: Emmanuel Florac @ 2012-10-09 16:15 UTC (permalink / raw) To: David Werner; +Cc: linux-nfs Le Tue, 9 Oct 2012 17:09:59 +0200 David Werner <david.werner@iws.uni-stuttgart.de> écrivait: > rus4iws.rus.uni-stuttgart.de:/vol/rus4iws_data0/ on /home > type nfs4 > (rw,relatime,sync,vers=4.0,rsize=65536,wsize=65536,namlen=255,acregmin=0,acregmax=0,acdirmin=0,acdirmax=0,hard,noac,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=129.69.98.101,local_lock=none,addr=129.69.201.103) > > But it did not resolve anything. Is the NetApp exported volume compressed by any chance? What does the output from "showmount -e <filer>" looks like for the related exports? -- ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | <eflorac@intellique.com> | +33 1 78 94 84 02 ------------------------------------------------------------------------ ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: Problem with NFSv4 (server: NetApp-Filer, client openSUSE-11.4, 12.1 and 12.2) 2012-10-09 16:15 ` Emmanuel Florac @ 2012-10-09 19:27 ` David Werner 2012-10-09 19:44 ` Emmanuel Florac 0 siblings, 1 reply; 10+ messages in thread From: David Werner @ 2012-10-09 19:27 UTC (permalink / raw) To: linux-nfs; +Cc: eflorac On Tue, Oct 09, 2012 at 06:15:11PM +0200, Emmanuel Florac wrote: > Le Tue, 9 Oct 2012 17:09:59 +0200 > David Werner <david.werner@iws.uni-stuttgart.de> écrivait: > > > rus4iws.rus.uni-stuttgart.de:/vol/rus4iws_data0/ on /home > > type nfs4 > > (rw,relatime,sync,vers=4.0,rsize=65536,wsize=65536,namlen=255,acregmin=0,acregmax=0,acdirmin=0,acdirmax=0,hard,noac,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=129.69.98.101,local_lock=none,addr=129.69.201.103) > > > > But it did not resolve anything. > > Is the NetApp exported volume compressed by any chance? What does the > output from "showmount -e <filer>" looks like for the related exports? output of showmount -e: Export list for rus4iws.rus.uni-stuttgart.de: /vol/rus4iws_data0 129.69.201.31,129.69.201.39,ikearw,ikea1,ikea2,ikea3,teleloch /vol/rus4iws_vol0 129.69.201.31,129.69.201.39 The first line contains our netgroups and is the directory we mount. I think some deduplication is enabled. Today I made a test with ubuntu-12.04.1 client, with the same problem. -- David Werner Universitaet Stuttgart Institut für Wasser- und Umweltsystemmodellierung Lehrstuhl fuer Hydromechanik & Hydrosystemmodellierung Pfaffenwaldring 61 ** 70569 Stuttgart Tel.: ++49-711-685 67010 ** Fax: ++49-711-685 60430 david.werner@iws.uni-stuttgart.de ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: Problem with NFSv4 (server: NetApp-Filer, client openSUSE-11.4, 12.1 and 12.2) 2012-10-09 19:27 ` David Werner @ 2012-10-09 19:44 ` Emmanuel Florac 0 siblings, 0 replies; 10+ messages in thread From: Emmanuel Florac @ 2012-10-09 19:44 UTC (permalink / raw) To: David Werner; +Cc: linux-nfs Le Tue, 9 Oct 2012 21:27:24 +0200 vous écriviez: > The first line contains our netgroups and is the directory we mount. Yes, nothing special apparently. > I think some deduplication is enabled. > Today I made a test with ubuntu-12.04.1 client, with the same problem. > So this may be a kernel bug. I'll have a quick look. -- ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | <eflorac@intellique.com> | +33 1 78 94 84 02 ------------------------------------------------------------------------ ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: Problem with NFSv4 (server: NetApp-Filer, client openSUSE-11.4, 12.1 and 12.2) 2012-10-09 13:59 Problem with NFSv4 (server: NetApp-Filer, client openSUSE-11.4, 12.1 and 12.2) David Werner 2012-10-09 14:21 ` Emmanuel Florac @ 2012-10-10 15:04 ` David Werner 2012-10-10 15:54 ` Malahal Naineni 2012-10-11 14:20 ` David Werner 2 siblings, 1 reply; 10+ messages in thread From: David Werner @ 2012-10-10 15:04 UTC (permalink / raw) To: linux-nfs Hi, to provide more details I made tcpdump of the "touch .." on two hosts. The outputfiles for looking in with wireshark & co are on: http://maultier.iws.uni-stuttgart.de:8080/nfs But I do not understand much of nfs-protocol. Best regards, David ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: Problem with NFSv4 (server: NetApp-Filer, client openSUSE-11.4, 12.1 and 12.2) 2012-10-10 15:04 ` David Werner @ 2012-10-10 15:54 ` Malahal Naineni 0 siblings, 0 replies; 10+ messages in thread From: Malahal Naineni @ 2012-10-10 15:54 UTC (permalink / raw) To: David Werner; +Cc: linux-nfs David Werner [david.werner@iws.uni-stuttgart.de] wrote: > Hi, > > to provide more details I made tcpdump of the > "touch .." on two hosts. The outputfiles for looking in with wireshark > & co are on: > > http://maultier.iws.uni-stuttgart.de:8080/nfs > > But I do not understand much of nfs-protocol. I did take a quick look and didn't see anything wrong in the NFS trace. Any syslog messages at the client. The ESTALE error must be made up at the client. Regards, Malahal. ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: Problem with NFSv4 (server: NetApp-Filer, client openSUSE-11.4, 12.1 and 12.2) 2012-10-09 13:59 Problem with NFSv4 (server: NetApp-Filer, client openSUSE-11.4, 12.1 and 12.2) David Werner 2012-10-09 14:21 ` Emmanuel Florac 2012-10-10 15:04 ` David Werner @ 2012-10-11 14:20 ` David Werner 2012-10-17 14:50 ` David Werner 2 siblings, 1 reply; 10+ messages in thread From: David Werner @ 2012-10-11 14:20 UTC (permalink / raw) To: linux-nfs Some more news about my problem. Thanks to all, who read this thread and made their thoughts about it. * I found not any significant kernel messages regarding stale handles in syslog or dmesg. * The question about "noac"-mount-parameter brought me to check more mount options. The parameter lookupcache is quite signifcant. If I set it to "none", the problem disappears. while with the values "positive" or "all" the problem persits. - Though if I mount first with "none" and later with "all" the problem disappeared but only until reboot when it then was mounted with "all". - I checked this under openSUSE-12.2. - I made a quick check with openSUSE 11.4 whether "none" takes there also away the problem. Best regards, David ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: Problem with NFSv4 (server: NetApp-Filer, client openSUSE-11.4, 12.1 and 12.2) 2012-10-11 14:20 ` David Werner @ 2012-10-17 14:50 ` David Werner 0 siblings, 0 replies; 10+ messages in thread From: David Werner @ 2012-10-17 14:50 UTC (permalink / raw) To: linux-nfs Hi, I now also tried the mount option 'nordirplus' which is in the shipped with man-page listet only for NFSv3, but on this mailing list it was said is also available for NFSv4. At a first glance this seems also to resolve the problem too, but seems to give better performance than the former mentioned 'lookupcache=none'. Best regards, David -- David Werner Universitaet Stuttgart Institut für Wasser- und Umweltsystemmodellierung Lehrstuhl fuer Hydromechanik & Hydrosystemmodellierung Pfaffenwaldring 61 ** 70569 Stuttgart Tel.: ++49-711-685 67010 ** Fax: ++49-711-685 60430 david.werner@iws.uni-stuttgart.de http://www.hydrosys.uni-stuttgart.de/ ^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2012-10-17 14:50 UTC | newest] Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2012-10-09 13:59 Problem with NFSv4 (server: NetApp-Filer, client openSUSE-11.4, 12.1 and 12.2) David Werner 2012-10-09 14:21 ` Emmanuel Florac 2012-10-09 15:09 ` David Werner 2012-10-09 16:15 ` Emmanuel Florac 2012-10-09 19:27 ` David Werner 2012-10-09 19:44 ` Emmanuel Florac 2012-10-10 15:04 ` David Werner 2012-10-10 15:54 ` Malahal Naineni 2012-10-11 14:20 ` David Werner 2012-10-17 14:50 ` David Werner
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