[CS-FSLUG] An odd Linux occurrence

[Tim Young]

Sorry for being unclear.  I patched the system after I rebooted and 
suddenly had my 1.2TB back available.  The disk-space disappearing 
happened before it rebooted.

The HD was being hammered fairly hard, but I still had a few 
processes running a purge of stuff.  (Crashplan has a "delete old 
backups" thing you can do, and I told all the backups lurking there 
to do that).  The space had vanished before I did that, so it is hard 
to tell what is up.

I was mainly wondering if anyone else had experienced the same or 
similar behavior.  Since my system is chuckling at me  behind it's 
back and working perfectly fine, I am OK to go for a bit.  It is just 
a little puzzling...

     - Tim

On 2/1/2013 9:48 PM, dcolburn at bibleseven.com wrote:
> Tim,
>
>     Sounds possible something may be reporting bad numbers rather 
> than the
> space actually being used.
>
>     OTOH ... does that patching process make temporary backups and/or
> extract then run, delete the saved compressed patch file, replace 
> old file
> (temporarily saved) as it goes?
>
>    Updates, if well-written, save stuff in case the update is 
> interrupted.
>
> Just guesses ...
>
> David
>
>
>> Ok. I am a little puzzled.
> >
> > My home Linux server (CentOS release 6.3 (Final)) recently ran 
> out of
> > disk space. I should have a lot of room on my 2TB RAID drive, but it
> > was 100% full. So I wandered around my system, cleaning off old
> > backups and stuff. I cleaned out 10GB, hoping that would get me
> > through this next week. I went off to do some other things and came
> > back because I forgot if I had 11GB or 10GB free. Nope. 100% full
> > (well, 200MB free, but when I looked again, it was 160MB and 
> counting
> > the wrong way). I did a number of diagnostics, freed up another 20GB
> > of not-so-available backups, and then watched as that 20GB was 
> slowly
> > and methodically eaten.
> >
> > The odd thing was that I could do a du /* and those numbers were not
> > changing. I dumped those numbers in files and then used diff to 
> check
> > to tell me what what dirs were changing in size to eat up GBs of
> > space.
> >
> > Turns out the only dir that was changing in size was the dir I was
> > storing my temp files in. And the change in size was measured in K.
> > I would expect that, since I was making these tiny text files with
> > space usage info in them.
> >
> > I did an lsof and did not see anything interesting.
> >
> > So, finally, I thought I would reboot.
> >
> > After it came back up, it is reporting 1.2TB free, which is about
> > what I would expect with the amount of data I have.
> >
> > Anyone see anything like this before?
> >
> > I do have some extra odd services running, and it could be one of
> > those. Also, I am running a yum update since there are a number of
> > patches to install. Just wondering if I am special, crazy, or just
> > lucky.
> >
> > - Tim Young
> >
> > _______________________________________________ ChristianSource 
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> >
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>