We have implemented Servlet 3.0 AsyncContext in Tomcat Version:7.0.23.
It is runing in RHEL 6.1 using OpenJDK version 1.6.0_24,64-bit server
The app is working fine for most part.
When there is some disturbance in the network, the update from the server is not able to reach the client as there is a "ClientAbortException: java.net.SocketException: Broken pipe" exception. which is caught and ignored.
This happens in the line,
asyncContext.getResponse().getWriter().println(updateStr);
After this Tomcat goes crazy and is routing URLs to unexpected servlets.
For example with a mapping of /query to a servlet called SessionManager, the URL mysite.com/index.html is routed to the SessionManager servlet.
Only restart of tomcat solves the problem.
Any pointers on why this is happening and how to solve this?
Just to add more data, the following is the stack trace of the exception.
ClientAbortException: java.net.SocketException: Broken pipe
at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:346)
at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:306)
at org.apache.catalina.connector.Response.flushBuffer(Response.java:568)
at org.apache.catalina.connector.ResponseFacade.flushBuffer(ResponseFacade.java:307)
at com.management.TestHandler$TestInfo.statusUpdate(TestHandler.java:638)
at com.chakra.ipbtt.TestObject.publish(TestObject.java:1626)
at com.chakra.ipbtt.TestObject.handlePublish(TestObject.java:1421)
at com.chakra.ipbtt.TestObject.executeCommand(TestObject.java:1371)
at com.chakra.ipbtt.TestObject.executeCommand(TestObject.java:1388)
at com.chakra.ipbtt.TestObject.executeCommand(TestObject.java:1388)
at com.chakra.ipbtt.TestObject.executeCommand(TestObject.java:1388)
at com.chakra.ipbtt.TestObject.executeCommand(TestObject.java:1388)
at com.chakra.ipbtt.TestObject.executeCommand(TestObject.java:1388)
at com.chakra.ipbtt.TestObject.executeTest(TestObject.java:1791)
at com.management.TestHandler.executeTest(TestHandler.java:420)
at com.management.TestHandler.handleNewTest(TestHandler.java:222)
at com.management.TestMgr.processRequest(TestMgr.java:71)
at com.management.TestMgr.doPost(TestMgr.java:105)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:690)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:477)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
at com.management.SessionMgr.processRequest(SessionMgr.java:131)
at com.management.SessionMgr.doPost(SessionMgr.java:164)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.management.SessionsFilter.doFilter(SessionsFilter.java:127)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1001)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:636)
Caused by: java.net.SocketException: Broken pipe
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:109)
at java.net.SocketOutputStream.write(SocketOutputStream.java:153)
at org.apache.coyote.http11.InternalOutputBuffer.realWriteBytes(InternalOutputBuffer.java:215)
at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:462)
at org.apache.coyote.http11.InternalOutputBuffer.flush(InternalOutputBuffer.java:119)
at org.apache.coyote.http11.AbstractHttp11Processor.action(AbstractHttp11Processor.java:789)
at org.apache.coyote.Response.action(Response.java:174)
at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:341)
... 48 more`
