Problem Uploading Files

[ujjwal soni]

Hi,

I am facing an issue with Servlet Upload. I get below Error when i upload CSV files using Servlet Upload. The strange part about this is that this error is thrown sometimes and sometimes it uploads fine.

Here are the details for this issue ::

Error ::

11/10/07 17:41:12 org.apache.commons.fileupload.FileUploadException: Processing of multipart/form-data request failed. Broken pipe
11/10/07 17:41:12       at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:384)
11/10/07 17:41:12       at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:116)
11/10/07 17:41:12       at FileUploadServlet.doFileUpload(FileUploadServlet.java:130)
11/10/07 17:41:12       at FileUploadServlet.doPost(FileUploadServlet.java:117)
11/10/07 17:41:12       at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
11/10/07 17:41:12       at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
11/10/07 17:41:12       at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:835)
11/10/07 17:41:12       at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:341)
11/10/07 17:41:12       at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:816)
11/10/07 17:41:12       at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:231)
11/10/07 17:41:12       at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:136)
11/10/07 17:41:12       at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
11/10/07 17:41:12       at java.lang.Thread.run(Thread.java:534)

My Code ::

JSP Page

<form enctype="multipart/form-data" name="myform" method="post"
	action="csvUpload"
	target="target_upload">
	
	<div>

	<table>
 		<tr>
 			<td >
 				<b>Data Upload</b>
 			</td>
 		</tr>
 		
 
 		<tr>
 			<td>
 				<span class="title">File</span>
 			</td>
 			<td>
 				<input type="file" name="dataFileUpload" />
 			</td>
 			<td> </td>
 		</tr>
 		<tr>
 		<td> </td>
 			<td >
                         <br/>
                         
                         <input type="submit" value="submit"/>
 			</td>
 			<td> </td>
 		</tr>
 	</table>
	</div>
</form>

Servlet Code

	      FileUploadListener listener = new FileUploadListener(request.getContentLength());
              System.out.println("this prints");
	      FileItemFactory factory = new MonitoredDiskFileItemFactory(listener);
              System.out.println("this prints");
	      ServletFileUpload upload = new ServletFileUpload(factory);

	      List items = upload.parseRequest(request); // i get error here
	

[Paul Clapham]

If the user terminates the upload before it is finished, you could get an exception. Or if some other network problem occurs.

You could test this yourself by uploading a large file to that code and not permitting the upload to complete.

[ujjwal soni]

Hi Paul,

Thanks for your reply. The user does not terminate the upload process, it just hangs itself and when i check the logs, it shows Broken Pipe. I tried uploading a 500kb CSV file but it sometimes uploads fine and sometimes it hangs up and show this error.

[Ove Lindström]

ujjwal soni wrote:Hi Paul,

Thanks for your reply. The user does not terminate the upload process, it just hangs itself and when i check the logs, it shows Broken Pipe. I tried uploading a 500kb CSV file but it sometimes uploads fine and sometimes it hangs up and show this error.

Do you know the path the call is taking? What firewalls, proxies, routers and other networks components that might want to have a saying in this? What is the request timeout? On slower networks, sometimes you need to raise the connection timeout. On Tomcat the default connectionTimeout is 60.000 milliseconds. For a 500 kB file, you need to have a 66 kbits/s to not timeout. That is not that much.

[Santanu Acharya]

How to give the client side validation by using servlet ?