On 04/16/2015 09:42 AM, Sage Weil wrote:
I think the simplest way to address this is to talk about compatibility in
terms of the upstream stable releases (firefly, hammer, etc.), and test
that compatibility with teuthology tests from ceph-qa-suite.git. We have
some basic inter-version client/cluster tests already in
suites/upgrade/client-upgrade. Currently these test new (version "x")
clients against a given release (dumpling, firefly). I think we just need
to add hammer to that mix, and then add a second set of tests that do the
reverse: test clients from a given release (dumpling, firefly, hammer)
against an arbitrary cluster version ("x").
The suites in suites/upgrade/$version-x do this, and use a mixed
version cluster rather than a purely version x cluster. It seems like
people would want that intra-cluster version coverage for smooth
upgrades.
Just need to add hammer-x there too (Yuri's renaming the client ones to
be $version-client-x for less confusion).
Also I think we'll want to start doing mixed-client-version tests,
particularly for things like rbd's exclusive locking:
http://tracker.ceph.com/issues/11405
Josh
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