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With the advent of galera based my/maria-db clustering and replication, the last major obstacle to a true active-active xcat configuration is IMHO removed.
The only other issue is dhcp configuration making use of dhcp failover protocol: https://tools.ietf.org/html/draft-ietf-dhc-failover-12 particularly section 5.3 http://manpages.ubuntu.com/manpages/precise/en/man5/dhcpd.conf.5.html#contenttoc6
and https://tools.ietf.org/html/rfc3074
I'd like to see xcat supporting an active-active management node via additional flags to makedhcp to keep it consistent over upgrades, and making sure all db tables have PK as per galera requirements.
I'd willing to help in modifying makedhcp, if required, however
my knowledge of perl is minimal, so any pointers would be helpful. |
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