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From: Ben Souther <bpsouther@adelphia.net>
Reply-To: bsouther@fwdco.com
To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
Subject: Re: Generating huge reports via servlets
Date: Sun, 14 Sep 2003 09:30:00 -0400
References: <238E33C3D1FFD511A79700D0B7A97A35C8F4B5@NOELANI>
In-Reply-To: <238E33C3D1FFD511A79700D0B7A97A35C8F4B5@NOELANI>
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Message-Id: <20030914134042.JMMO16966.mta8.adelphia.net@there>

Is it the size of the file or the amount of time that it takes to generate 
it?. Try serving up a static copy of the report after it's finished.
If you can serve up a static version, then it's probably not the size.

We've got some large reports (>5meg) that can take up to 15 minutes to 
generate. Instead of having the user sit at a blank screen while it's being 
run, we kick off the report and immeditately forward the context to a 
status JSP.  The status page refereshes every 20 seconds, checking to see 
what reports are complete.  Once complete, we provide a link to a servlet 
that streams the report to the user's browser.


On Friday 12 September 2003 11:36 am, you wrote:
> Hello All,
>
> I have a servlet that generates reports in CSV format. When the content
> size of the report is small, it works fine. But if the content size is 4MB,
> I get a 404 error but no exceptions. I tried setBufferSize(4MB) and
> contentSize to the actual size of the report but that didnt help much. I am
> running Tomcat 4.1.27. Please help.
>
> Vijay
>
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