Regarding Three node cluster

Question

Hi,
Can i know how the High Availability feature works foe three node cluster.I configured two node cluster and it works fine, if one goes down the other runs the application. What in case of three node or higher topology cluters.
Is the High availability feature confined to two node cluster , if not how it works for higher topology clusters.
Can anyone help me on this.

Answer 1

This assumes you use the agent builder to do this. If that is the case, you will need to put each of the generated packages on all of the nodes of the cluster. However, it's probably far easier to just create the resources from the command line. You only actually need to specify a start method, e.g
# clrg create my-rg
# clrs create -t SUNW.gds -g my-rg -p network_aware=false -p Start_command=/var/tmp/gds-start my-gds-rs
where /var/tmp/gds-start in my case contains:
#!/bin/ksh
sleep 100000 &
but in your case would contain the start commands for you application - which leaves some sort of process tree in place. If the process in the tree all fail, then the service would be restarted.
Have a look at the other resources on the web about writing GDS services.
Tim
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