[CentOS] very large difference between df and du (10 GB, hard to believe)

On Mon, Feb 1, 2010 at 8:43 AM, Brian Mathis <brian.mathis at gmail.com> wrote:
> On Mon, Feb 1, 2010 at 10:36 AM, Matt Iavarone <matt.iavarone at gmail.com> wrote:
>>
>> This is typical.  There were probably files deleted from the file
>> system that are still in use by a process.  Restarting the process
>> will release the files and df and du will jive.
>>
>
> That argument only holds until you reach the point in the email where
> he said this:
>    > I rebooted on the CentOS v4.8 CD #1, started "linux rescue" :
>
> After the reboot that would be taken care of, so that's not the issue here.
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I guess I glossed over that part.  It could be related to mysql (the
storage engine, metadata).  du may not be able to parse that
information(?).