[1767] in athena10
Re: tmp-cleaner for Linerva
daemon@ATHENA.MIT.EDU (Nelson Elhage)
Wed Mar 18 16:55:13 2009
Date: Wed, 18 Mar 2009 16:52:43 -0400
From: Nelson Elhage <nelhage@MIT.EDU>
To: Greg Price <price@mit.edu>
Cc: linerva@mit.edu
Message-ID: <20090318205243.GP5764@mit.edu>
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In-Reply-To: <20090317232645.GT25963@mit.edu>
Lacking a definite better plan, I say we set up the (Deb)Athena tmp
cleaner. If we need something more aggressive, we can move to
tmpreaper or something that doesn't necessarily respect logged-in
status. But the Athena cleaner is something people are used to and we
know works reasonably well in comparable environments.
I'll hold off on doing so until I get at least one ack from another
maintainer.
- Nelson
On Tue, Mar 17, 2009 at 07:26:45PM -0400, Greg Price wrote:
> We should install a tmp-cleaner on Linerva. Today we nearly hit 50G.
>
> linerva / tmp / andersk 17:41 (Anders Kaseorg)
> Filesystem 1K-blocks Used Available Use% Mounted on
> /dev/mapper/linerva-tmp
> 51606140 47324116 1660968 97% /tmp
> linerva / tmp / price 18:01 (Gregory N. Price)
> # find /tmp -maxdepth 1 -size +1G -atime 3
>
> finds seven files. None of the owners are logged in. I'm going to
> remove them with /bin/saferm (like debathena-tmp-cleaner uses.)
> Then we can deal non-urgently.
> linerva / tmp / price 18:01 (Gregory N. Price)
> (pausing for objections...)
> linerva / tmp / price 18:05 (Gregory N. Price)
> Done.
>
> vinegar-pot:~# df /tmp/
> Filesystem 1K-blocks Used Available Use% Mounted on
> /dev/mapper/linerva-tmp
> 51606140 40478324 8506760 83% /tmp
>
> We should still set up a real tmp-cleaner.
>
> One obvious choice is debathena-tmp-cleaner, which as written removes
> files in /tmp older than 2 days and in /var/tmp older than 3.
>
> But it refuses to remove files owned by users who are logged in, no
> matter how long ago the file was last touched. Since the history of
> -tmp-cleaner is that ghudson wrote it in July, I suspect that this was
> motivated by the cluster situation where a logged-in user "owns" the
> machine and may as well do as they please in /tmp/. For Linerva we
> may want to vary this behavior.
>
> It might also be nice to use upstream software. Any recommendations?
>
> Greg
