*Sir,Thanks for your guide lines. Thankyou. * On Mon, Oct 25, 2010 at 1:18 AM, Cyrille Vincey <crll...@gmail.com> wrote:
> Have you created a descending index on the key of the entity group you try > to map ? > (required for mapreduce jobs) > > From: suersh babu <sureshgbab...@gmail.com> > Reply-To: <google-appengine-java@googlegroups.com> > Date: Fri, 22 Oct 2010 14:52:17 +0530 > To: <google-appengine-java@googlegroups.com>, < > google-appeng...@googlegroups.com> > Subject: [appengine-java] Mapreduce gives error when I execute job on > appengine cloud? > > Hi, > > I am using mapreduce to run the job but when I try to run the job in > mapreduce by clicking run button I am getting error like this : > Error -- java.lang.RuntimeException: Full stack trace is available in the > server logs. Message: Got an IOException while trying to make splits > > In my local machine mapreduce works fine, It executed the job without any > error. > > I am using app engine sdk 1.3.8 > > Following is the server log generated by my application for the mapreduce > error. > > 1. 10-22 02:02AM 49.783 > > com.google.appengine.tools.mapreduce.DatastoreInputFormat getSplits: > Getting input splits for: Payment > > 2. E 10-22 02:02AM 49.810 > > com.google.appengine.tools.mapreduce.MapReduceServlet handleCommand: Got > exception while running command > java.lang.RuntimeException: Got an IOException while trying to make splits > at > com.google.appengine.tools.mapreduce.MapReduceServlet.handleStart(MapReduceServlet.java:747) > at > com.google.appengine.tools.mapreduce.MapReduceServlet.handleStartJob(MapReduceServlet.java:364) > at > com.google.appengine.tools.mapreduce.MapReduceServlet.handleCommand(MapReduceServlet.java:247) > at > com.google.appengine.tools.mapreduce.MapReduceServlet.doPost(MapReduceServlet.java:184) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:713) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) > at > org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) > at > com.veersoft.filter.ResetUserMessagesAndErrorsFilter.doFilter(ResetUserMessagesAndErrorsFilter.java:28) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) > at > com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:97) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) > at > com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) > at > com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) > at > org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) > at > org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) > at > org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) > at > org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) > at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) > at > com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:238) > at > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) > at org.mortbay.jetty.Server.handle(Server.java:326) > at > org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) > at > org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923) > at > com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76) > at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) > at > com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:135) > at > com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:261) > at > com.google.apphosting.base.RuntimePb$EvaluationRuntime$6.handleBlockingRequest(RuntimePb.java:8486) > at > com.google.apphosting.base.RuntimePb$EvaluationRuntime$6.handleBlockingRequest(RuntimePb.java:8484) > at > com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java:24) > at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:418) > at com.google.net.rpc.impl.Server$RpcTask.runInContext(Server.java:572) > at > com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:448) > at com.google.tracing.TraceContext.runInContext(TraceContext.java:688) > at > com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:326) > at > com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:318) > at > com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:446) > 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.io.IOException: Couldn't find descending index on __key__ > at > com.google.appengine.tools.mapreduce.DatastoreInputFormat.getEndKey(DatastoreInputFormat.java:232) > at > com.google.appengine.tools.mapreduce.DatastoreInputFormat.getSplits(DatastoreInputFormat.java:106) > at > com.google.appengine.tools.mapreduce.MapReduceServlet.handleStart(MapReduceServlet.java:742) > ... 42 more > > > > -- > Regards > > Suresh Babu G > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > google-appengine-j...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > google-appengine-j...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
