Hi,
today we tested some NFS cluster scenarios and the first test failed.
The first test was to put the current master node into standby. Stopping
the services worked but then starting it on the other node failed. The
ocf:hearbeat:Filesystem resource failed to start. In the logfile we see:
Apr 12 14:08:42 laplace Filesystem[10772]: [10820]: INFO: Running start
for /dev/home-data/afs on /srv/nfs/afs
Apr 12 14:08:42 laplace Filesystem[10772]: [10822]: ERROR: DANGER! ext4
on /dev/home-data/afs is NOT cluster-aware!
Apr 12 14:08:42 laplace Filesystem[10772]: [10824]: ERROR: DO NOT RUN IT
AS A CLONE!
The message comes from the following code in ocf:hearbeat:Filesystem:
case $FSTYPE in
ocfs2) ocfs2_init
;;
nfs|smbfs|none|gfs2) : # this is kind of safe too
;;
*) if [ -n "$OCF_RESKEY_CRM_meta_clone" ]; then
ocf_log err "DANGER! $FSTYPE on $DEVICE is NOT
cluster-aware!"
ocf_log err "DO NOT RUN IT AS A CLONE!"
ocf_log err "Politely refusing to proceed to avoid data
corruption."
exit $OCF_ERR_CONFIGURED
fi
;;
esac
The message is only printed if the variable OCF_RESKEY_CRM_meta_clone is
non-zero. Our configuration however does not run the filesystem as a
clone. Somehow the OCF_RESKEY_CRM_meta_clone variable leaked into the
start of the Filesystem resource. Is this a known bug?
Or is there a configuration error on our side? Here is the current
configuration:
node laplace \
attributes standby="off"
node ries \
attributes standby="off"
primitive ClusterIP ocf:heartbeat:IPaddr2 \
params ip="192.168.143.228" cidr_netmask="24" \
op monitor interval="30s" \
meta target-role="Started"
primitive p_drbd_nfs ocf:linbit:drbd \
params drbd_resource="home-data" \
op monitor interval="15" role="Master" \
op monitor interval="30" role="Slave"
primitive p_exportfs_afs ocf:heartbeat:exportfs \
params fsid="1" directory="/srv/nfs/afs"
options="rw,no_root_squash,mountpoint" \
clientspec="192.168.143.0/255.255.255.0" \
wait_for_leasetime_on_stop="false" \
op monitor interval="30s"
primitive p_fs_afs ocf:heartbeat:Filesystem \
params device="/dev/home-data/afs" directory="/srv/nfs/afs" \
fstype="ext4" \
op monitor interval="10s" \
meta target-role="Started"
primitive p_lsb_nfsserver lsb:nfs-kernel-server \
op monitor interval="30s"
primitive p_lvm_nfs ocf:heartbeat:LVM \
params volgrpname="home-data" \
op monitor interval="30s"
group g_nfs p_lvm_nfs p_fs_afs p_exportfs_afs ClusterIP
ms ms_drbd_nfs p_drbd_nfs \
meta master-max="1" master-node-max="1" clone-max="2"
clone-node-max="1" notify="true" target-role="Started"
clone cl_lsb_nfsserver p_lsb_nfsserver
colocation c_nfs_on_drbd inf: g_nfs ms_drbd_nfs:Master
order o_drbd_before_nfs inf: ms_drbd_nfs:promote g_nfs:start
property $id="cib-bootstrap-options" \
dc-version="1.0.9-unknown" \
cluster-infrastructure="openais" \
expected-quorum-votes="2" \
stonith-enabled="false" \
no-quorum-policy="ignore" \
last-lrm-refresh="1302610197"
rsc_defaults $id="rsc-options" \
resource-stickiness="200"
Thanks
Christoph
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