Re: 2GB file upload limit

Thomas Ronayne <[email protected]> Mon, 07 Nov 2005 19:53:57 GMT
Newsgroups gmane.comp.mozilla.devel.unix
Organization SBC http://yahoo.sbc.com
Message-ID <[email protected]>
Philip wrote:

>This group seems a good place to start.
>
>I am trying to find out the root cause of the 2GB browser file upload
>limitation. Many web pages discuss the fact that no browser supports file
>uploads larger than 2GB. However, I cannot find any references as to why there
>is such a limit.
>
>I am interested in the root cause of this limitation. Mostly to answer customers
>asking for larger file uploads.
>
>- Is there a natural limit in the multipart/form-data specification? I could not
>find one.
>- Have *all* browsers 32 bit counter overflows and no one has built a browser
>for larger files?
>- Other reasons?
>  
>
If memory serves, it's not so much the browser as the file system -- 
some (emphasis on some) file systems will only let you do the Magic 
Number (2,147,483,648); your basic 32-bit box. Solaris gets around that 
with a setting for big files (except that most SPARC boxes are 64-bit, 
so you go a lot further).

One does wonder, though, why anybody would be fooling around up- or 
downloading 2G files with a browser -- ftp, perhaps?