On Wed, Nov 6, 2019 at 2:05 PM Riccardo Murri <[email protected]> wrote:
> Hello, > > Is there any way to downgrade a GlusterFS cluster? Given the > performance issues that I have seen with GlusterFS 6 and 7 (reported > elsewhere on this mailing-list), I am now considering downgrading back > to GlusterFS 3.13. > > I have set up a test cluster, copied some files on it, and tried to > downgrade the naive way (uninstall GlusterFS 7, install GlusterFS > 3.13, do not touch bricks or other config). This didn't work: > `glusterd` v3.13 complains that the o-version 70000 cannot be > restored. > > So I tried again, this time trying to lower op-version before > downgrading the system packages, but `gluster set all op-version` > won't let me: > > ``` > $ sudo gluster volume set all cluster.op-version 31000 > volume set: failed: Required op-version (31000) should not be equal or > lower than current cluster op-version (70000). > ``` > > What can I try next? > > We don't advise downgrade, and don't test downgrade as part of any automated tests right now. Disclaimer: Below is not tested Considering you have some genuine issue, and there are no new options added with new version, try editing '/var/lib/glusterd/glusterd.info' file, and change the op-version manually in all machines, and restart glusterd. -Amar > Thanks, > Riccardo > ________ > > Community Meeting Calendar: > > APAC Schedule - > Every 2nd and 4th Tuesday at 11:30 AM IST > Bridge: https://bluejeans.com/118564314 > > NA/EMEA Schedule - > Every 1st and 3rd Tuesday at 01:00 PM EDT > Bridge: https://bluejeans.com/118564314 > > Gluster-users mailing list > [email protected] > https://lists.gluster.org/mailman/listinfo/gluster-users >
________ Community Meeting Calendar: APAC Schedule - Every 2nd and 4th Tuesday at 11:30 AM IST Bridge: https://bluejeans.com/118564314 NA/EMEA Schedule - Every 1st and 3rd Tuesday at 01:00 PM EDT Bridge: https://bluejeans.com/118564314 Gluster-users mailing list [email protected] https://lists.gluster.org/mailman/listinfo/gluster-users
