Reclaiming maas space

[Mike Pontillo]

On Sat, Jan 28, 2017 at 10:16 PM, Jim Tilander <jim at tilander.org> wrote:

> Here is the output. As I mentioned before, I’m iterating on uploading
> Win2012R2 images over and over again. I assume those are the ones listed as
> “root-dd” (13,14,15,25) below?
>

Yes, thanks for checking. This seems to indicate that the
previously-uploaded Win2012 image is simply never being removed from the
database. The command to vacuum the large objects will not find anything to
vacuum if they haven't been deleted. I went ahead and file a new bug for
this:

https://bugs.launchpad.net/maas/+bug/1660418

Feel free to add any details there if you'd like. I can think of some
possible workarounds involving removing those stale database entries, but I
wouldn't want to suggest anything untested. (Note that MAAS actually runs
the large object unlink() in a Django post-delete handler, so simply
removing the tables using SQL won't be enough.)

Thanks,
Mike
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