Hi Daniel,

Could you explain more details about this feature request?

Is this dhcp HA for xCAT management node active-active HA solution?


Best Regards
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Yuan Bai (白媛)

CSTL HPC System Management Development
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From:   Daniel Letai <[email protected]>
To:     [email protected]
Date:   09/11/2016 11:33 PM
Subject:        [xcat-user] Feature Request active-active xcat configuration -
            makedhcp failover configuration and ensure all tables have
            primary key



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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