[Bugs] [Bug 1687051] gluster volume heal failed when online upgrading from 3.12 to 5.x and when rolling back online upgrade from 4.1.4 to 3.12.15

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1687051



--- Comment #68 from Amgad <amgad.saleh at nokia.com> ---
The op-version doesn't change with upgrade. So if I upgrade from 3.12.15 to
5.5, it stays the same

[root at gfs2 ansible]#  gluster volume get all cluster.op-version 
Option                                  Value                                   
------                                  -----                                   
cluster.op-version                      31202                                   
[root at gfs2 ansible]#  gluster --version
glusterfs 5.5
......

So when I rollback is't the lower op-version. I don't change op-version version
upgrade till everything is fine (soak), then I change it to the higher value

BTW -- I tested the scenario with 6.1-1 and it's still the same!

Regards,
Amgad

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