Gluster users - Aug 2014 - Removing orphaned hard links under .glusterfs

We have a distributed volume, and had a rather large (> 50TB) folder that was
no longer needed.  Naively, we removed the folder from the brick instead of
through the Gluster client.

You can probably see where this is going.  We didn?t actually reclaim the space
because of the hard links to .glusterfs, and now we need to figure out how to
clean up.

Is it sufficient to simply check whether a file under .glusterfs has less than 2
hard links, something like:

find .glusterfs -type f -links -2 -exec rm {} \;

Or do we have to do something else?  Any help is much appreciated.

?Branden

I would think that the link count should be sufficient.  I've attached a
python module that we've used to do some brick level indexing and cleanup
on our system.  You could use it to generate a list of the .glusterfs links
for the remaining good files on the disk.  Then you could check your
candidates for removal against the list before removing them.

On Aug 21, 2014 12:05 PM, "Branden Timm" <btimm at
energy.wisc.edu> wrote:
> We have a distributed volume, and had a rather large (> 50TB) folder
that
> was no longer needed.  Naively, we removed the folder from the brick
> instead of through the Gluster client.
>
> You can probably see where this is going.  We didn?t actually reclaim the
> space because of the hard links to .glusterfs, and now we need to figure
> out how to clean up.
>
> Is it sufficient to simply check whether a file under .glusterfs has less
> than 2 hard links, something like:
>
> find .glusterfs -type f -links -2 -exec rm {} \;
>
> Or do we have to do something else?  Any help is much appreciated.
>
> ?Branden
>
> _______________________________________________
> Gluster-users mailing list
> Gluster-users at gluster.org
> http://supercolony.gluster.org/mailman/listinfo/gluster-users
>
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