nfs mount locally exported directories in a Red HAt Cluster (v3)?

[evdhn at advalvas.be]

> evdhn at advalvas.be wrote:
>> In a Red Hat HA Cluster (v3), how can you nfs mount a directory exported
>> by a cluster service that is currently local to the cluster member?
>> I keep getting permission denied errors.  It works fine when I move the
>> cluster service to the other cluster member.  The firewall has been
>> stoppped, just to make sure it wasn't part of the problem.
>
> Make sure you have portmapper and nfslock running on both the client and
> server.  That's the most common problem.
> ----------------------------------------------------------------------
> - Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
> - VitalStream, Inc.                       http://www.vitalstream.com -
> -                                                                    -
> -           Denial.  It ain't just a river in Egypt anymore!         -
> ----------------------------------------------------------------------

Thanks for your answer Rick, but apparently I explained poorly.

This is a two-member cluster with hostnames arneb and nihal and services
lepusbb and lepustl.
When service lepusbb runs on arneb, I cannot nfs mount its device on arneb
using the service name.  I.e.
# mount -t nfs lepusbb:/usr/local/lepus-bb /usr/local/bb
does not work on arneb, but it does work on nihal.
Similarly, I can mount lepustl:/usr/local/lepus-tl on arneb but not on nihal.

I meanwhile found that
# mount -t nfs arneb:/usr/local/lepus-bb /usr/local/bb
does work, so I'm currently using that as a workaround, but obviously,
when a failover would occur while the devices are locally mounted, my
scripts wil be in trouble.

And yes, portmapper and nfslock are running:
# ps auxw | egrep -e lock -e portm | grep -v grep
rpc       3109  0.0  0.0  1672  608 ?        S    10:36   0:00 portmap
root      3314  0.0  0.0     0    0 ?        SW   10:36   0:00 [lockd]
root      3453  0.0  0.0  3064 3064 ?        S<L  10:36   0:00
/usr/sbin/clulockd

Kine regards,

emma


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