On 2011-07-13 23:08, Michael Schwartzkopff wrote:
Hi,
I am trying to set up a NFSv4 server cluster. After failover my client
has to wait 90 sec to be able to access the data agin.
I already set /proc/fs/nfsd/nfsv4leasetime to 10 but the result ist the
same. The server now logs:
Jul 13 22:44:27 debian1 kernel: [ 3512.102296] NFSD: starting 10-second
grace period
but the client waits exactly for 90 sec.
Any idea what might be wrong?
Cosmic rays.
More seriously, post the configuration and explain _precisely_ how you
are testing this. May well be a bug, but no way to tell for sure (and
hence, no way to fix) with the scarce information given. Thanks.
</long description>
I somehow tried so set up a NFSv4 server along your SLES11 tutorial. But I
user Debian Squeeze and tried to keep it simple without the clone resources.
So here is my config:
primitive resDRBD ocf:linbit:drbd \
params drbd_resource="r0"
primitive resExportHome ocf:heartbeat:exportfs \
params clientspec="192.168.87.0/24" directory="/srv/nfs/export/home" \
fsid="1001" options="no_root_squash,rw"
primitive resExportRoot ocf:heartbeat:exportfs \
params clientspec="192.168.87.0/24" \
options="rw,crossmnt,no_root_squash" fsid="0" \
directory="/srv/nfs/export"
primitive resFilesystem ocf:heartbeat:Filesystem \
params device="/dev/drbd0" fstype="ext4" directory="/srv/nfs"
primitive resIP ocf:heartbeat:IPaddr2 \
params ip="192.168.87.33" nic="eth0" cidr_netmask="24"
primitive resNFScommon lsb:nfs-common \
op monitor interval="60s"
primitive resNFSserver ocf:heartbeat:nfsserver \
params nfs_init_script="/etc/init.d/nfs-kernel-server" \
nfs_notify_cmd="/sbin/sm-notify" \
nfs_shared_infodir="/srv/nfs/infodir" \
nfs_ip="192.168.87.33"
group groupNFS resFilesystem resNFScommon resNFSserver \
resExportRoot resExportHome resIP
ms msDRBD resDRBD \
meta notify="true"
colocation col_FS_DRBD inf: groupNFS:Started msDRBD:Master
order ord_DRBD_FS inf: msDRBD:promote groupNFS:start
I can mount the NFS on a client
mount -t nfs4 -o udp 192.168.87.33:/home /mnt/home
accessing the NFS share every second during a failover results in:
while : ; do date; cat /mnt/home/testfile ; sleep 1 ; done
Thu Jul 14 20:59:11 CEST 2011
Hello world
Thu Jul 14 20:59:12 CEST 2011
cat: /mnt/home/testfile: Socket operation on non-socket
Thu Jul 14 20:59:15 CEST 2011
cat: /mnt/home/testfile: Socket operation on non-socket
Thu Jul 14 20:59:17 CEST 2011
cat: /mnt/home/testfile: Socket operation on non-socket
Thu Jul 14 20:59:20 CEST 2011
cat: /mnt/home/testfile: Socket operation on non-socket
Thu Jul 14 20:59:22 CEST 2011
(...)
Hello world
Thu Jul 14 21:01:03 CEST 2011
Hello world
That means there is a 90 sec gap accesing the file. I changed nfsv4leasetime
already to 10 sec. But It did not help.
Any other ideas? Are the LVS as in your tutorial nescessesary?
Greetings,
Hi,
you could try
group groupNFS resFilesystem resIP resNFScommon resNFSserver resExportRoot
resExportHome
instead of
group groupNFS resFilesystem resNFScommon resNFSserver resExportRoot
resExportHome resIP
because as far as I know, the server IP should be available when NFSserver
starts!
Greetings,
Eberhard
------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------
Forschungszentrum Juelich GmbH
52425 Juelich
Sitz der Gesellschaft: Juelich
Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498
Vorsitzender des Aufsichtsrats: MinDirig Dr. Karl Eugen Huthmacher
Geschaeftsfuehrung: Prof. Dr. Achim Bachem (Vorsitzender),
Dr. Ulrich Krafft (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt,
Prof. Dr. Sebastian M. Schmidt
------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------
_______________________________________________
Pacemaker mailing list: [email protected]
http://oss.clusterlabs.org/mailman/listinfo/pacemaker
Project Home: http://www.clusterlabs.org
Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
