topic Re: cmquery from non-clusterd node applicable or not? in Operating System - HP-UX

cmquery from non-clusterd node applicable or not?

Muhammad Ahmad — Mon, 06 Sep 2010 17:43:10 GMT

hi,

just a short question to discuss:

if we have 2-nodes cluster and we need to add a 3rd node in it.

can it is alowable to cmquerycl from the 3rd-node (to be added in the cluster) to existing 2-nodes cluster ?

in our understanding it's not allowable.

please comment . . .

o/s hpux 11.23 (IA)
sg version 11.18

Regards,

Re: cmquery from non-clusterd node applicable or not?

melvyn burnard — Mon, 06 Sep 2010 19:57:19 GMT

provided you have configured the new node correctly, and have set up the cmclnodelist correctly, then you simply use cmquerycl -C -n node1 -n node2 -n node3

All documented in http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/c02056194/c02056194.pdf
Page 364

Re: cmquery from non-clusterd node applicable or not?

Muhammad Ahmad — Mon, 06 Sep 2010 21:08:51 GMT

Hi melvyn,

Thanks for your reply.
i understand that.
as my question, that cmquerycl command can not be run outside the cluster (i.e from the node which need to be added in cluster).
it can only be run from the existing cluster nodes.

please comment .

furthermore, there's a fileset named "Cluster-Monitor.CM-CORE,l=/,r=A.11.18.00" which found "Verify failed" when i execute "swverify ".
cmquerycl runs fine from existing cluster-nodes but not from the new-node (which is not the part the 2-nodes cluster right now).

in our understanding, it's a normal behaviour because cmquerycl can not be run succesfully from that node because it's not the part of existing cluster.

please comment.

secondly, please share any possible after-effects during the node-addition activity or after the activity (if successfully completed), if we proceed with the node-addition process along-with the Error of "Verify Failed > "Cluster-Monitor.CM-CORE,l=/,r=A.11.18.00"?

if you can share any possible way to troubleshoot/remove that "verify failed", that would be highly appreciated.

Regards,

Re: cmquery from non-clusterd node applicable or not?

SoorajCleris — Mon, 06 Sep 2010 23:15:10 GMT

as my question, that cmquerycl command can not be run outside the cluster (i.e from the node which need to be added in cluster).
it can only be run from the existing cluster nodes.

==> #cmquerycl is the first command whih is run in the process of cluster implementation. It can be run from any node where serviceguard product is installed.

in our understanding, it's a normal behaviour because cmquerycl can not be run succesfully from that node because it's not the part of existing cluster.

==> command should be working. please configure /etc/cmcluster/cmclnodelist.
Then run the commmand
#cmquerycl -n node1 -n node2 -n node3 -C /output.xx

secondly, please share any possible after-effects during the node-addition activity

==> If you added the node properly , the node will be part of cluster!!!!!

if you can share any possible way to troubleshoot/remove that "verify failed", that would be highly appreciated.

==> check what /var/adm/sw/swagent.log for more information why FAILED!!

regards,
Sooraj

Re: cmquery from non-clusterd node applicable or not?

melvyn burnard — Tue, 07 Sep 2010 06:03:31 GMT

cmquerycl can be run from any node that has Serviceguard installed. It is also a troubleshooting tool, and you should be able to run it from any node.
Follow the steps in the manual

Re: cmquery from non-clusterd node applicable or not?

Muhammad Ahmad — Tue, 07 Sep 2010 09:21:11 GMT

hi sooraj,

pfa, the logs.

hi melvyn,

can we do query a running cluster-nodes from a non-cluster-node, do we not expect a permission denied error ?

in our understanding we can query non-cluster-nodes from the clustered-nodes only.

please comment.