Temporary disk space leak

Temporary disk space leak

[Giuliano Pochini]

[root@Jay Giu]# du -c /home
[...]
320120	/home
320120	total
[root@Jay Giu]# df
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/sda8               253823     65909    174807  27% /
/dev/sda7              2158320    750672   1296240  37% /usr
/dev/sda5              2193082   1898198    183474  91% /home
/dev/sda9              1013887    899924     61586  94% /opt


It happened after I wrote and deleted very large files (~750MB) a
few times in my home dir.
Then I logged out and I relogged in as root to check what happened
and "df" shown everything was right again:

/dev/sda5              2193082    320122   1761550  15% /home


...strange...


Linux Jay 2.4.2 #6 gio mar 22 00:02:30 CET 2001 ppc unknown


Bye.

P.S. Yes, I was the only one using the computer.

Re: Temporary disk space leak

[Jag]

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On Sat, 31 Mar 2001, Giuliano Pochini wrote:

> 
> [root@Jay Giu]# du -c /home
> [...]
> 320120	/home
> 320120	total
> [root@Jay Giu]# df
> Filesystem           1k-blocks      Used Available Use% Mounted on
> /dev/sda8               253823     65909    174807  27% /
> /dev/sda7              2158320    750672   1296240  37% /usr
> /dev/sda5              2193082   1898198    183474  91% /home
> /dev/sda9              1013887    899924     61586  94% /opt
> 
> 
> It happened after I wrote and deleted very large files (~750MB) a
> few times in my home dir.
> Then I logged out and I relogged in as root to check what happened
> and "df" shown everything was right again:
> 
> /dev/sda5              2193082    320122   1761550  15% /home
> 
> 
> ...strange...

Was the 750M file opened by a program when it was deleted?  When a file
is deleted, if it is opened, it will still be there and taking up file
space (as shown in df) until it is completely closed.  However, even if
the file is opened by a process and not really deleted, the file's space
will no longer show up in du because the file can no longer be accessed
through the filesystem.

It sounds like this is what happened, and whatever program had the file
open was closed when you logged out.


Jag

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Re: Temporary disk space leak

[Giuliano Pochini]

> Was the 750M file opened by a program when it was deleted ?

No, I ripped two times the image from a few audio CDs with
cdparanoia -Z to see if my new 2nd-hand cdrom worked fine. I
just did grab, cmp, rm.

> When a file
> is deleted, if it is opened, it will still be there and taking up file
> space (as shown in df) until it is completely closed.

Yes, I know posix, but I don't think this is the case. I'll try reproduce
it...


Bye.
    Giuliano Pochini ->)|(<- Shiny Network {AS6665} ->)|(<-