On Jan 14, 2008, at 10:08 PM, Thomas Glanzmann wrote:
Hello Andrew,
looks sane enough - though linux-ha is slightly heavy for just
monitoring processes in a cluster-of-one.
any reason not to make it a four node cluster?
I have 9 machines configured as 6 clusters:
- 2x apache (ha resources: router; openvpn; nagios; apache +
mod jk; drbd + nfs; fencing)
- 4x tomcat (ha resources: tomcat; one cluster per node)
- 2x postgres (ha resources: drbd + postgres)
I decided to keep them as different clusters so that they don't
interfere with each other.
you can use rsc_colocation and rsc_location constraints to achieve the
same result
If I would turn the tomcats in a four node cluster, how would it look
like in xml? Four tomcats each with a strong affinity to a node?
basically yeah
in your case, its probably easier to set symmetric-cluster=false, no-
quorum-policy=ignore and then selectively enable certain node+resource
combinations with rsc_location constraints
then, once you're comfortable with that setup, you might want to think
about merging all 8 machines into the one cluster :)
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