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From JoAnn Lemm <>
Subject RE: JK connector -- isapi2 -- file upload
Date Fri, 16 Apr 2004 17:16:50 GMT
While we're discussing this ... has anyone developed a work-around for this
problem? I have beta product clients calling me, so this is extremely

Leaving debug running seems to only fix the problem intermittently.

Is there another ISAPI that will work?


-----Original Message-----
From: E Cunningham [] 
Sent: Friday, April 16, 2004 9:59 AM
To: Tomcat Users List
Subject: Re: JK connector -- isapi2 -- file upload

We verified this using Tomcat 4.1.30 not 5.x.
Therein may be the problem. The connector code
in Tomcat. 

Let's ask this then. 
Is there a dependency between JK2 and Tomcat?
When they started to release separately one would
think that any JK2 would work with any Tomcat?

Does JK2 need to include a jk2.jar?
JoAnn, thanks for provoking more thought on this.

--- JoAnn Lemm <> wrote:
> Hi All,
> I've search the archives and I've seen several posts
> indicating that there
> is a bug in the isapi connector in regards to large
> file uploads (or not
> that large, since the error seems to occur at or
> around 50Kb.) The problem
> being that "the stream ended unexpectedly. 
> The strange thing is, I don't see this problem when
> I upload a large file
> (3M) within our intranet (I'm using IIS6, Tomcat 5 &
> jk2.0.4), only when I
> try to access from the internet.
> This leads me to believe there is some sort of
> timing problem (the connector
> trying to grab data that hasn't yet arrived?) 
> Interestingly, I solved the
> problem by turning debug on - forcing the isapi
> connector to log debug
> messages and making is slow down a bit. That 3M file
> uploaded with no
> problem.
> So, here's the question ... is there a properties
> file, ini file ...
> anything ... where I can set the size of the buffer
> in the connector? It
> looks like it's grabbing about 8Kb each time.
> --JoAnn 
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