Quoting Pavlos Parissis <p_pavlos@xxxxxxxxxxx>:
Hi,
I am building a NFS Active/Passive cluster using ext3 filesystem and I
don't know if I have a configuration issue or I come across a bug.
My service, nfs1, is started without problems but there is no nfs
export available.
I went through the list and I found this thread
http://marc.info/?l=redhat-linux-cluster&m=118764091712577&w=2
I tried to find any evidence of this by looking at bug reports and the
release notes of 4.5,4.6 and 5.0 but I couldn't find any thing.
Could you please someone give me an idea?
Well I couldn't find why cluster couldn't handle NFS share.
As a result I made a small script for starting/stopping the NFS shares
and modified my service accordingly.
<service domain="ThirdDomain" name="nfs1" autostart="1" recovery="relocate">
<ip monitor_link="1" address="10.10.21.73"/>
<ip monitor_link="1" address="10.10.21.142"/>
<fs device="/dev/sdb2" mountpoint="/nfs_omg_data"
force_unmount="1" name="/nfs_omg_data" fstype="ext3"/>
<fs device="/dev/sdb3" mountpoint="/nfs_apps" force_unmount="1"
name="/nfs_apps" fstype="ext3"/>
<fs device="/dev/sdb4" mountpoint="/nfs_cdr_central"
force_unmount="1" name="/nfs_cdr_central" fstype="ext3"/>
<script name="nfs1" file="/usr/local/wsb/scripts/rhc_nfs1"/>
</service>
ocsi3# cat /usr/local/wsb/scripts/rhc_nfs1
#!/bin/sh
. /opt/ngp/tools/lib/ud_functions
check_daemons()
{
NFS_DAEMONS="nfsd rpc.mountd rpc.statd"
for daemon in $NFS_DAEMONS; do
ps -ef | grep "$daemon" | grep -v grep >/dev/null 2>&1
if [ $? -ne 0 ]; then
log "NFS daemon $daemon is not running."
return 1
fi
done
return 0
}
check_shares()
{
NFS_SHARES="/nfs_omg_data /nfs_apps /nfs_cdr_central"
for share in $NFS_SHARES; do
exportfs|grep "$share" >/dev/null 2>&1
if [ $? -ne 0 ]; then
log "$share is not shared."
return 1
fi
done
return 0
}
check_mounts()
{
MOUNTS="/nfs_cdr_central /nfs_omg_data /nfs_apps"
for mount in $MOUNTS; do
mount|grep $mount >/dev/null 2>&1
if [ $? -ne 0 ]; then
log "$mount file system isn't mounted"
return 1
fi
done
return 0
}
if [ "$1" = "start" ]; then
log "Checking for NFS daemons"
if ! check_daemons; then
exit 1
fi
log "Checking for mounts"
if ! check_mounts; then
exit 1
fi
log "Starting NFS shares"
exportfs -o rw 10.10.21.128/26:/nfs_omg_data
exportfs -o rw 10.10.21.128/26:/nfs_apps
exportfs -o rw 10.10.21.128/26:/nfs_cdr_central
exit 0
elif [ "$1" = "stop" ]; then
log "Stopping the NFS shares"
exportfs -u 10.10.21.128/26:/nfs_omg_data
exportfs -u 10.10.21.128/26:/nfs_apps
exportfs -u 10.10.21.128/26:/nfs_cdr_central
exit 0
elif [ "$1" = "status" ]; then
if check_mounts; then
# Disks mounted go and check daemons
if ! check_daemons; then
exit 1
elif ! check_shares ; then
exit 1
fi
else
# Disks not mounted
exit 1
fi
exit 0
else
log "Unknown argument exit nicely"
exit 0
fi
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