Just delete all gluster stuff, including volumes, configs and .gluster folder on bricks
Point new volumes 3.13 to same brick locations and run stat on each file
v
On Wed, Nov 6, 2019 at 3:35 AM Riccardo Murri <riccardo.murri@xxxxxxxxx> 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?
Thanks,
Riccardo
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