[Bugs] [Bug 1544699] Rolling upgrade to 4.0 is broken

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1544699



--- Comment #2 from Worker Ant <bugzilla-bot at gluster.org> ---
COMMIT: https://review.gluster.org/19560 committed in master by "Amar Tumballi"
<amarts at redhat.com> with a commit message- protcol/client: Insert dummy
clnt-lk-version to avoid upgrade failure

With https://review.gluster.org/#/c/12363/ being merged, we no longer
send client's lk-version to server side and the corresponding check on
server is also removed. But when clients are upgraded prior to servers,
the check for lk-version at server side fails and is reported back to
clients resulting in disconnection.

Since we don't have lock-recovery (lk-version and grace-timeout) logic
anymore in code base our best bet would be to add client's default
lk-version i.e, 1, into the dictionary just to make server side check
pass and continue with remaining SETVOLUME operations.

Change-Id: I441b67bd271d1e9ba9a7c08703e651c7a6bd945b
BUG: 1544699
Signed-off-by: Anoop C S <anoopcs at redhat.com>

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