Hi all My hadoop version is 1.1.2
I found the following errors in the logs tasktracker This seems like https://issues.apache.org/jira/browse/MAPREDUCE-5 But, but I found a little different, as Caused by: java.io.IOException: Connection reset by peer Whether it is a network problem caused it? 2013-12-29 02:45:15,049 ERROR org.mortbay.log: /mapOutput java.lang.IllegalStateException: Committed at org.mortbay.jetty.Response.resetBuffer(Response.java:1023) at org.mortbay.jetty.Response.sendError(Response.java:240) at org.apache.hadoop.mapred.TaskTracker$MapOutputServlet.doGet(TaskTracker.java:4131) at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221) at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:850) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) 2013-12-29 02:45:15,144 INFO org.apache.hadoop.mapred.TaskTracker: attempt_201312171527_6251_m_003156_0 0.0% 2013-12-29 02:45:15,255 INFO org.apache.hadoop.mapred.TaskTracker: attempt_201312171527_6251_m_003176_0 0.0% 2013-12-29 02:45:15,303 INFO org.apache.hadoop.mapred.TaskTracker: attempt_201312171527_6251_m_003169_0 0.0% 2013-12-29 02:45:15,365 INFO org.apache.hadoop.mapred.TaskTracker.clienttrace: src: 10.1.3.8:50060, dest: 10.1.3.8:35881, bytes: 21945803, op: MAPRED_SHUFFLE, cliID: attempt_201312171527_6340_m_000000_0, duration: 225598592 2013-12-29 02:45:15,400 INFO org.apache.hadoop.mapred.TaskTracker: attempt_201312171527_6340_r_000000_0 0.3125% reduce > copy (15 of 16 at 20.79 MB/s) > 2013-12-29 02:45:15,723 INFO org.apache.hadoop.mapred.TaskTracker.clienttrace: src: 10.1.3.8:50060, dest: 10.1.3.10:57892, bytes: 21525475, op: MAPRED_SHUFFLE, cliID: attempt_201312171527_6340_m_000000_0, duration: 243900484 2013-12-29 02:45:15,729 INFO org.apache.hadoop.mapred.TaskTracker: attempt_201312171527_6251_m_003253_0 0.0% 2013-12-29 02:45:15,843 WARN org.apache.hadoop.mapred.TaskTracker: getMapOutput(attempt_201312171527_6340_m_000000_0,2) failed : org.mortbay.jetty.EofException at org.mortbay.jetty.HttpGenerator.flush(HttpGenerator.java:791) at org.mortbay.jetty.AbstractGenerator$Output.flush(AbstractGenerator.java:569) at org.mortbay.jetty.HttpConnection$Output.flush(HttpConnection.java:1012) at org.mortbay.jetty.AbstractGenerator$Output.write(AbstractGenerator.java:651) at org.mortbay.jetty.AbstractGenerator$Output.write(AbstractGenerator.java:580) at org.apache.hadoop.mapred.TaskTracker$MapOutputServlet.doGet(TaskTracker.java:4094) at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221) at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:850) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) Caused by: java.io.IOException: Connection reset by peer at sun.nio.ch.FileDispatcher.write0(Native Method) at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:29) at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:72) at sun.nio.ch.IOUtil.write(IOUtil.java:43) at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:334) at org.mortbay.io.nio.ChannelEndPoint.flush(ChannelEndPoint.java:170) at org.mortbay.io.nio.SelectChannelEndPoint.flush(SelectChannelEndPoint.java:221) at org.mortbay.jetty.HttpGenerator.flush(HttpGenerator.java:725) ... 26 more thx -- [email protected]|Hu
