Dear all,
first of all thanks to Stefan (Kania) for the feedback. So detaching the
peer, removing brick and downgrading to replica 2 until you add a new
brick as you would do with any otherwise faulty node.
So here is how we proceeded:
* check mounts where the faulty (ex-filled-up) node is present and
remove it from there
* detach "bad" peer with: gluster peer detach
* remove brick: gluster volume remove-brick replica 2
: force
So in our case we are ready to add a new brick to restore our replica 3.
This should be safer (and in the end as simple) than just copying the
missing files probably bringing along meta-data inconsistencies. Which
was also the doubt expressed on this post.
Am 08.01.24 um 11:13 schrieb Ilias Chasapakis forumZFD:
Dear all,
we have a replica 3 configuration an issue after that the file system
filled up. The gluster daemon is not starting anymore on the affected
node and the inconsistency that we noticed is that the
/var/lib/glusterd/peers does contain only one "good" node and the
other one is missing.
Now what we would like to try is to probe from the affected peer the
missing one. We also thought about just copying the missing node
config file /var/lib/glusterd/peers here but we think this might be
more inconsistent because perhaps of the time passed between finding
out the issue and when the fill up had occurred (if this has
relevance). We assume probing will fill that missing entry in the
affected gluster and will sync to it. What we want to avoid is that
this happens the other way around.
So in brief the question is if in our situation probing is too risky
and we should try other methods (removing-adding brick) or anything
that you might want to suggest from your experience.
Many thanks in advance
Ilias
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