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From Debashis Roy <r_debas...@hotmail.com>
Subject RE: Who ate my "Connection reset by peer" SocketException?
Date Thu, 04 Aug 2011 17:38:20 GMT

Nothing in between browser and tomcat... direct connection from IE to 8080.
 

> Date: Thu, 4 Aug 2011 18:19:58 +0200
> From: aw@ice-sa.com
> To: users@tomcat.apache.org
> Subject: Re: Who ate my "Connection reset by peer" SocketException?
> 
> Debashis Roy wrote:
> > Hi,
> > 
> > Trying something which involves catching the "Connection reset by peer" SocketException.
Below is the code snippet from my servlet with explanatory comments.
> > Does anyone have any idea as to what is happening?
> > 
> > try
> > {
> > byte [] bytes = getContentBytes(); //read the actual bytes of the content into an
array.
> > resp.addHeader("Content-Disposition", "attachment;filename=somefile.zip");
> > resp.addHeader("Content-Type", "application/zip");
> > resp.addHeader("Pragma", "no-cache");
> > resp.addHeader("Connection", "close");
> > resp.setContentLength(bytes.length);
> > OutputStream os = resp.getOutputStream();
> > for (int i = 0; i < bytes.length; i++)
> > {
> > System.out.println("writing byte " + i);
> > os.write(bytes[i]);
> > /* write all bytes but the last one to the ostream */
> > /* the file save dialog shows up in the browser */
> > /* netstat shows an established connection from browser to 8080 of tomcat host */
> > if (i == bytes.length - 2)
> > {
> > System.out.println("doing intermediate flush...");
> > resp.flushBuffer();
> > /* sleep for 30 secs */
> > /* during this time close the browser and click cancel on the file save dialog*/
> > /* netstat shows zero connections with port 8080 of tomcat */
> > try
> > {
> > Thread.sleep(30000);
> > }
> > catch (InterruptedException interex)
> > {
> > }
> > }
> > /* the last byte gets written after the sleep period */
> > /* was expecting to see the "connection reset by peer" exception here */
> > }
> > /* or here */
> > resp.flushBuffer();
> > 
> > /* Voila !!! no exceptions till here and the code exits cleanly !!! */
> > }
> > catch (Throwable th)
> > {
> > th.printStackTrace();
> > }
> > 
> 
> Is there anything at all between the browser and Tomcat ?
> (thinking of a front-end webserver/load balancer etc..)
> 
> 
> 
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