Re: [PLUG] Apache using deleated files

[LeRoy Cressy <ldc@lrcressy.com>]

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Tobias DiPasquale wrote:
> On Tue, 2004-02-24 at 07:08, LeRoy Cressy wrote:
>
> > does anyone know why Apache is using deleted tmp files without closing 
> > them first?
>
>
> If you open a file and then delete it, but do not close it, you then
> have a file that will automatically be removed when you exit the process
> (intentionally or unintentionally). This is an easy way to clean up a
> domain socket: after both processes have opened the file, one of them
> deletes it. When its time to close the domain socket, both processes
> just exit normally and don't have to worry about which one deletes the
> domain socket. Since the file is already marked as deleted and only now
> has a use count of 0, it will actually be removed implicity by the
> filesystem.

This is an on going thing with apache and apache-ssl.  Now mysql has a 
bug report against it for the same thing.  Since these are servers, 
stopping the process cleans up the deleated files as you said, but when 
you restart apache, there are new ones created which are marked as being 
deleted.

What I was asking, does anyone know why apache does not close the file 
prior to deleting it?  This has been around for a long time and I wonder 
what the reasoning is.

> As for why its using those particular deleted files, you'll have to use
> the source for that.


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