Hi, I have setup a 2 node cluster of Hadoop 2.3.0. Its working fine and I can successfully run distributedshell-2.2.0.jar example. But when I try to run any mapreduce job I get error. I have setup MapRed.xml and other configs for running MapReduce job according to ( http://www.alexjf.net/blog/distributed-systems/hadoop-yarn-installation-definitive-guide) but I am getting following error :
14/03/22 20:31:17 INFO mapreduce.Job: Job job_1395502230567_0001 failed with state FAILED due to: Application application_1395502230567_0001 failed 2 times due to AM Container for appattempt_1395502230567_0001_000002 exited with exitCode: 1 due to: Exception from container-launch: org.apache.hadoop.util.Shell$ExitCodeException: org.apache.hadoop.util.Shell$ExitCodeException: at org.apache.hadoop.util.Shell.runCommand(Shell.java:505) at org.apache.hadoop.util.Shell.run(Shell.java:418) at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:650) at org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor.launchContainer(DefaultContainerExecutor.java:195) at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:283) at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:79) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) Container exited with a non-zero exit code 1 .Failing this attempt.. Failing the application. 14/03/22 20:31:17 INFO mapreduce.Job: Counters: 0 Job ended: Sat Mar 22 20:31:17 PKT 2014 The job took 6 seconds. And if look at stderr (log of job) there is only one line *"Could not find or load main class 614"* Now I have googled it and usually this issues comes when you have different JAVA versions or in yarn-site.xml classpath is not properly set , my yarn-site.xml has this <property> <name>yarn.application.classpath</name> <value>/opt/yarn/hadoop-2.3.0/etc/hadoop,/opt/yarn/hadoop-2.3.0/*,/opt/yarn/hadoop-2.3.0/lib/*,/opt/yarn/hadoop-2.3.0/*,/opt/yarn/hadoop-2.3.0/lib/*,/opt/yarn/hadoop-2.3.0/*,/opt/yarn/hadoop-2.3.0/lib/*,/opt/yarn/hadoop-2.3.0/*,/opt/yarn/hadoop-2.3.0/lib/*</value> </property> So any other ideas what could be the issue here ? I am running my mapreduce job like this: $HADOOP_PREFIX/bin/hadoop jar $HADOOP_PREFIX/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar randomwriter out Thanks, Tony