Ah great, thank you Kaushal for the explanation! Duly noted. :)
On 26/11/14 10:53, Kaushal M wrote:
JF is correct. You'll need to bump up the operating version
(op-version) to the latest. There have been changes to add-brick and
the following heal, rebalance etc. which require that all servers be
at an operating-version greater than or equal to the operating-version
level introduced in v3.6, 30600.
The upgrade process will not bump up the operating version of the
cluster automatically, because we do not want to break clusters in
between upgrades of two nodes. Once you have upgraded all the nodes in
the cluster, you can use 'gluster volume set all cluster.op-version
30600' to bump it up. This could have been done automatically, but we
don't as automatically doing it could cause older clients to break
because of newer features being enabled.
~kaushal
On Wed, Nov 26, 2014 at 3:00 PM, JF Le Fillâtre
jean-francois.lefilla...@uni.lu wrote:
Hello Alastair,
The tip to change the operating version number was given in another mail to
the list within the last few hours:
gluster volume set all cluster.op-version 30600
My own /var/lib/glusterd/glusterd.info files, from a freshly installed
3.6.1, contain the following line:
operating-version=30600
But interestingly, the log files on my clients contain lines like:
0-vol2-client-0: Using Program GlusterFS 3.3, Num (1298437), Version (330)
Note that I have no idea if changing the op-version will create side-effects
that will put your data at risk. Can anyone from Gluster/RedHat provide some
insight on this topic?
Thanks,
JF
On 25/11/14 20:48, Alastair Neil wrote:
I have a 2 server CentOS 6 replicated cluster which started out as
version 3.3 and has been progressively updated and is now on version
3.6.1. Yesterday I added a new freshly installed CentOS 6.6 host and
wanted to convert to replica 3 on one of my volumes, however I was
unable to add the brick as it reported that all the brick hosts had to
be at version 03060. Presumable some minimum compatibility is set on
the volume, but I am struggling to find where. The info file under
/va/lib/glusterd/vols/volname has op-version=2, client-op-version=2.
Any suggestions?
Thanks, Alastair
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Jean-François Le Fillâtre
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