topic Re: can't see the second node in Operating System - HP-UX

can't see the second node

Cristi BODNARIUC — Mon, 30 Jun 2003 16:44:35 GMT

Hi,

I am trying to build up a 2-nodes (node1 and node2) cluster with MC/SerrviceGuard.

Both nodes are HPUX 11.0 and the same version of SG (A.11.14).

I installed SG, configured the common volume group on an external SCSI, but when I try to create a cluster configuration with SAM I can see only node1 in the nodes available (even if I try to configure a cluster from node2 I get only node1 available).

if I try cmquerycl without parameters I get:
Cluster Name Node Name
UNUSED
node1

And if I try:
cmquerycl -v -C /etc/cmcluster/lpcluster.config -n node2

Begin checking the nodes...
Looking for other clusters ... Done
Error: Unable to establish communication to node node2
Failed to gather configuration information.

Does anyone have any idea?

Thanks a lot,
Cristi

Re: can't see the second node

Hai Nguyen_1 — Mon, 30 Jun 2003 16:48:02 GMT

Cristi,

Have you created .rhosts file on both the nodes?

Hai

Re: can't see the second node

Hai Nguyen_1 — Mon, 30 Jun 2003 16:49:44 GMT

Also, look into /var/adm/syslog/syslog.log for more info on the problem in addition to cluster log.

Hai

Re: can't see the second node

Massimo Bianchi — Mon, 30 Jun 2003 16:49:49 GMT

Hi,
usually this is a permission problem.

Check the correctness of .rhosts for root on both node, assure that nodes will be equivalent, and finally check /etc/cmclsuter/cmclnodelist

HTH,
Massimo

Re: can't see the second node

James R. Ferguson — Mon, 30 Jun 2003 16:51:45 GMT

Hi Christi:

If you haven't, make sure that either a correct '.rhosts' or '/etc/cmcluster/cmclnodelist' file is configured.

Regards!

...JRF...

Re: can't see the second node

Cristi BODNARIUC — Mon, 30 Jun 2003 17:12:11 GMT

Hi,

I have configured the /etc/cmcluster/cmclnodelist file and /.rhosts file(even if I thought it is not really necessary)

they look like this:

node1.domain.com root #HPUXNLCluster
node2.domain.com root #HPUXNLCluster

both nodes are resolved well by the DNS

Thanks

Re: can't see the second node

John Poff — Mon, 30 Jun 2003 17:17:04 GMT

Hi,

From node1, can you successfully execute a command on node2 using 'remsh'?

node1# remsh node2 bdf

or something like that, and also from node2
to node1?

JP

Re: can't see the second node

Cristi BODNARIUC — Mon, 30 Jun 2003 17:43:55 GMT

Hi,

thanks all for your prompt help.

i got it to work.

maybe it was important and I forgot to tell you, but the HP servers have configured a NIS client.

and I got into the Name Service Switch settings and I changed some lines, but I think the one who made it work was to look for services in /etc/services first (by default it looked on NIS first)

thanks,
Cristi