[PATCH] Do not allow different versions of ctdb in a cluster

Stefan Metzmacher metze at samba.org
Tue May 23 06:48:51 UTC 2017

Hi Amitay,

I guess there's no way to detect the version mismatch at the
"connect" time? Or is the keepalive message the first message
that's send over the connection?


Am 23.05.2017 um 06:40 schrieb Amitay Isaacs via samba-technical:
> Hi,
> Till now there has never been a check to ensure that compatible ctdb
> versions are running in a cluster.  We allowed different versions of ctdb
> in a cluster.  This patch set adds a check to ensure that a cluster has
> compatible versions of ctdb.
> As a general rule, ctdb with same major and minor versions will be
> compatible.
> However allow the flexibility of mixing versions if you know what you are
> doing via new tunable AllowMixedVersions.
> Please review and push.
> These patches are dependent on the set of patches posted previously
> (simplify generation of version header files in ctdb build).
> Amitay.

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