Re: Caused by: java.io.IOException: An existing connection was forcibly closed by the remote host - while writing to the csv file

Not really, any implementation is going to be highly dependant on how your backend environment is set up and what projects you can or cannot incorporate.

Here's a decent explanation of how you generally want to approach a situation like this though. 
https://devcenter.heroku.com/articles/background-jobs-queueing

On Monday, June 24, 2013 3:43:40 PM UTC-5, fedex wrote:

Can anyone please suggest how to resolve this exception. I implemented a code which writes huge data to the csv file. I don't know why the connection is getting out.

org.mortbay.jetty.EofException

org.mortbay.jetty.EofException

org.mortbay.jetty.HttpConnection$Output@f09f9a

at org.mortbay.jetty.HttpGenerator.flush(HttpGenerator.java:760)

at org.mortbay.jetty.AbstractGenerator$Output.flush(AbstractGenerator.java:566)

at org.mortbay.jetty.HttpConnection$Output.flush(HttpConnection.java:911)

at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297)

at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141)

at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229)

at java.io.BufferedWriter.flush(BufferedWriter.java:254)

at com.fedex.forecast.datamart.server.util.CSVFileDownloadServlet.writeCsv(CSVFileDownloadServlet.java:180)

at com.fedex.forecast.datamart.server.util.CSVFileDownloadServlet.doPost(CSVFileDownloadServlet.java:75)

at com.fedex.forecast.datamart.server.util.CSVFileDownloadServlet.doGet(CSVFileDownloadServlet.java:38)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)

at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)

at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)

at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)

at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)

at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729)

at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)

at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)

at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49)

at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)

at org.mortbay.jetty.Server.handle(Server.java:324)

at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)

at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:829)

at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:513)

at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)

at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)

at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)

at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)

Caused by: java.io.IOException: An existing connection was forcibly closed by the remote host

at sun.nio.ch.SocketDispatcher.write0(Native Method)

at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:51)

at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:94)

at sun.nio.ch.IOUtil.write(IOUtil.java:51)

at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:450)

at org.mortbay.io.nio.ChannelEndPoint.flush(ChannelEndPoint.java:160)

at org.mortbay.io.nio.SelectChannelEndPoint.flush(SelectChannelEndPoint.java:207)

at org.mortbay.jetty.HttpGenerator.flush(HttpGenerator.java:693)

... 28 more

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