Re: Any clue on this, please? Uploading large files - out of memory

[Tim Funk <fu...@joedog.org>]

Please followup to tomcat user.

1) Make sure that the app is using ServletRequest.getInputStream()
2) See the spec: 'SRV.4.1.1 When Parameters Are Available'



-Tim

Fabrizio Nesti wrote:

> Hi,
> any comment on this "out of memory" with large file upload?
> 
> This error seems recurring to a bunch of users, but I'm wondering if it's a
> problem in the tomcat implementation, or if there are other layers to blame.
> 
> Thanks for any light on this darkness, since I've a tight schedule on
> this issue... unfortunately..
> cheers,
> fabrizio
> 
> 
> ---------- Forwarded message ----------
> Date: Mon, 1 Dec 2003 14:36:57 +0100 (MET)
> From: Fabrizio Nesti <ne...@medialab.sissa.it>
> To: tomcat-dev@jakarta.apache.org
> Subject: Uploading large files - out of memory exception
> 
> Dear tomcat developers,
> 
> I've noticed a problem while uploading files with tomcat 4.1.x.
> 
> - When uploading large files (say larger than 10MB) tomcat throws an out
>   of memory exception.
> 
> - The problem can be avoided raising the memory allocation (as found in
>   other similar messages, -Xms128m -Xmx512m) but this is not a solution,
>   since it depends on the memory and just makes the limit higher.
> 
> I do not know how the actual download works (we are using the
> EchoPoint fileupload component, for that matters) but it seems that
> the whole file is slurped in memory _before_ passing the request to a
> user servlet. Indeed it seems that our download component is never
> invoked (see the error below).
> 
> Is there a configuration option to avoid this behavior, or there's
> nothing to do but limit the filesize?
> 


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