<div dir="ltr">
<div>Just delete all gluster stuff, including volumes, configs and .gluster folder on bricks</div><div>Point new volumes 3.13 to same brick locations and run stat on each file<br></div><div><a href="https://lists.gluster.org/pipermail/gluster-users/2018-January/033352.html">https://lists.gluster.org/pipermail/gluster-users/2018-January/033352.html</a></div>
<div><br></div><div>v<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Nov 6, 2019 at 3:35 AM Riccardo Murri <<a href="mailto:riccardo.murri@gmail.com">riccardo.murri@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hello,<br>
<br>
Is there any way to downgrade a GlusterFS cluster? Given the<br>
performance issues that I have seen with GlusterFS 6 and 7 (reported<br>
elsewhere on this mailing-list), I am now considering downgrading back<br>
to GlusterFS 3.13.<br>
<br>
I have set up a test cluster, copied some files on it, and tried to<br>
downgrade the naive way (uninstall GlusterFS 7, install GlusterFS<br>
3.13, do not touch bricks or other config). This didn't work:<br>
`glusterd` v3.13 complains that the o-version 70000 cannot be<br>
restored.<br>
<br>
So I tried again, this time trying to lower op-version before<br>
downgrading the system packages, but `gluster set all op-version`<br>
won't let me:<br>
<br>
```<br>
$ sudo gluster volume set all cluster.op-version 31000<br>
volume set: failed: Required op-version (31000) should not be equal or<br>
lower than current cluster op-version (70000).<br>
```<br>
<br>
What can I try next?<br>
<br>
Thanks,<br>
Riccardo<br>
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