[Linux-cluster] NFS configuration question

[Birger Wathne]

Eric Kerin wrote:

>Just because I'm curious, why do you restart lockd?  Are you restarting
>any other nfs related services from rgmanager?
>  
>
I think I found the bug. A line had sneaked (snuck?) back into 
cluster.conf from an early experiment. I have just been blind to this 
line in the config file. I once had it set up so that the service 
started NFS. Later I  changed it so NFS gets started at boot with just a 
dummy export in my exports file.

Now, the line starting NFS was back in my config file. Must have been a 
copy/paste error at some time.

The lockd/statd that start at boot shouldn't really have anything to do, 
so when the service starts I simply run a modified version of 
/etc/init.d/nfslock that kills the existing daemons and start them again 
with some parameters set... I set the hostname to the one that follows 
the nfs service, and redirect the state dir to a gfs disk. When the 
service stops, these daemons get stopped, and the default ones started 
again. This way I hope to get the HA service to also take over locks.

Here is a snippet of my config file showing the resources and the nfs 
service. Of the listed exports, the first one for users01 and all 3 for 
iftscratch don't seem to get status checks, and thus never came up again.

<resources>
    <clusterfs fstype="gfs" name="cluadmfs" mountpoint="/cluadm" 
device="/dev/mapper/raid5-cluadm" options="acl"/>
    <clusterfs fstype="gfs" name="pakkefs" mountpoint="/service/pakke" 
device="/dev/mapper/raid5-pakke" options="acl"/>
    <clusterfs fstype="gfs" name="users01fs" 
mountpoint="/service/users01" device="/dev/mapper/raid5-users01" 
options="acl"/>
    <clusterfs fstype="gfs" name="iftscratchfs" 
mountpoint="/service/iftscratch" device="/dev/mapper/raid5-iftscratch" 
options="acl"/>
    <nfsclient name="nis-hosts" target="@nis-hosts" options="rw,sync"/>
    <nfsclient name="nis-hosts-ro" target="@nis-hosts" 
options="ro,sync,no_root_squash"/>
    <nfsclient name="h-nfs-root" target="@h-nfs-root" 
options="rw,sync,no_root_squash"/>
    <nfsclient name="h-nfs-insecure" target="@h-nfs-insecure" 
options="rw,sync,insecure"/>
    <nfsclient name="h-nfs-insecure-ro" target="@h-nfs-insecure" 
options="ro,sync,no_root_squash,insecure"/>
    <nfsclient name="dhcp-ro" target="@dhcp-hosts" 
options="ro,sync,no_root_squash"/>
  </resources>

  <service name="nfssvc" domain="nfsdomain">
    <ip address="129.177.40.30" monitor_link="yes"/>
    <script name="NFS lockd script" file="/etc/init.d/nfslock-svc"/>
    <clusterfs ref="cluadmfs"/>
    <clusterfs ref="pakkefs">
      <nfsexport name="pakkefs">
        <nfsclient ref="h-nfs-root"/>
        <nfsclient ref="h-nfs-insecure-ro"/>
        <nfsclient ref="nis-hosts-ro"/>
      </nfsexport>
    </clusterfs>
    <clusterfs ref="users01fs">
      <nfsexport name="users01fs">
        <nfsclient ref="h-nfs-root"/>
        <nfsclient ref="h-nfs-insecure"/>
        <nfsclient ref="nis-hosts"/>
      </nfsexport>
    </clusterfs>
    <clusterfs ref="iftscratchfs">
      <nfsexport name="iftscratchfs">
        <nfsclient ref="h-nfs-root"/>
        <nfsclient ref="h-nfs-insecure"/>
        <nfsclient ref="nis-hosts"/>
      </nfsexport>
    </clusterfs>
  </service>