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тАО01-30-2009 03:06 AM
тАО01-30-2009 03:06 AM
SG two node cluster - startup(boot)
One node fail for a long time. Packages are fail over to second node. This works OK.
Now I am going to reboot second node. After reboot the cluster is not running. I can start it using cmruncl -n node2.
Is there any solutions to form cluster automatic - without manual intervention. (cmcluster.rc AUTOSTART_CMCLD=1).
Perhaps I must delete failing node from configuration? Is there more elegant solution. Thank's!
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тАО01-30-2009 04:07 AM
тАО01-30-2009 04:07 AM
Re: SG two node cluster - startup(boot)
this is because initial cluster formation can *only* occur when all cluster nodes are present. if you think about it, this makes sense as otherwise the cluster isn't aware of whether a node has failed or whether it has just lost communication. you need to avoid split brain situations, so this rule is always the case.
don't get tempted to code the "cmruncl -n node2" into a startup script - that would be a *very* bad idea!
HTH
Duncan
I am an HPE Employee
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тАО01-30-2009 06:05 AM
тАО01-30-2009 06:05 AM
Re: SG two node cluster - startup(boot)
# cmapplyconf -f -v -C
After the cluster is reconfigured down to a 1-node cluster, the remaining node should auto-start the cluster at boot time because there are no other nodes it will be waiting on to join with.
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тАО01-30-2009 04:42 PM
тАО01-30-2009 04:42 PM
Re: SG two node cluster - startup(boot)
check for a /etc/rc.config.d/cmcluster
or something like that with the AUTOSTART_CMCLD variable.
I forget what the path is on linux.
script that starts serviceguard at boot time where the node will join a existing clsuter.
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тАО02-01-2009 10:53 PM
тАО02-01-2009 10:53 PM