[Gluster-users] [Gluster-devel] 3.7.5 upgrade issues

[Atin Mukherjee]

Here is an update to this issue. Gaurav Garg (In Cc) has identified the
root cause and the fix [1] has been posted for review in mainline. Once
its merged we will backport it and push it for 3.7.6.

The issue originated because of introducing new enums in the middle of
the enum structure which resulted in a mismatch in enum number at the
receiving glusterd end and caused commands to fail. Fix is to move these
new enums at the end of the structure, however this would not fix 3.7.5
to 3.7.6 upgrade path as the same mismatch will happen in this case too.
However if you upgrade the complete cluster, then the issue goes off. We
could have chosen to maintain two different enum structures here (one
for pre 3.7.6 and the other is >= 3.7.6) but that makes code look
redundant and more importantly ugly. So we chose to go with option 1.
Another BZ will be raised to mark 3.7.5 to 3.7.6 upgrade issue as known
issue and the same will be captured in the release notes.

3.7.7 onward the upgrade path will be smooth.

[1] http://review.gluster.org/#/c/12473/

Thanks,
Atin


On 10/28/2015 06:23 PM, Raghavendra Talur wrote:
> I have filed a bug for this on bugzilla.
> Here is the link https://bugzilla.redhat.com/show_bug.cgi?id=1276029.
> 
> Please cc yourself for updates on the bug.
> 
> 
> Thanks,
> Raghavendra Talur
> 
> 
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