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Hadoop QA commented on MAPREDUCE-6240: -------------------------------------- {color:red}-1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12696338/MAPREDUCE-6240.1.patch against trunk revision b73e776. {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:red}-1 tests included{color}. The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch. {color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings. {color:green}+1 javadoc{color}. There were no new javadoc warning messages. {color:green}+1 eclipse:eclipse{color}. The patch built with eclipse:eclipse. {color:red}-1 findbugs{color}. The patch appears to introduce 13 new Findbugs (version 2.0.3) warnings. {color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings. {color:green}+1 core tests{color}. The patch passed unit tests in hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core. Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5150//testReport/ Findbugs warnings: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5150//artifact/patchprocess/newPatchFindbugsWarningshadoop-mapreduce-client-core.html Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5150//console This message is automatically generated. > Hadoop client displays confusing error message > ---------------------------------------------- > > Key: MAPREDUCE-6240 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-6240 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: client > Reporter: Mohammad Kamrul Islam > Assignee: Mohammad Kamrul Islam > Attachments: MAPREDUCE-6240-gera.001.patch, MAPREDUCE-6240.1.patch > > > Hadoop client often throws exception with "java.io.IOException: Cannot > initialize Cluster. Please check your configuration for > mapreduce.framework.name and the correspond server addresses". > This is a misleading and generic message for any cluster initialization > problem. It takes a lot of debugging hours to identify the root cause. The > correct error message could resolve this problem quickly. > In one such instance, Oozie log showed the following exception while the > root cause was CNF that Hadoop client didn't return in the exception. > {noformat} > JA009: Cannot initialize Cluster. Please check your configuration for > mapreduce.framework.name and the correspond server addresses. > at > org.apache.oozie.action.ActionExecutor.convertExceptionHelper(ActionExecutor.java:412) > at > org.apache.oozie.action.ActionExecutor.convertException(ActionExecutor.java:392) > at > org.apache.oozie.action.hadoop.JavaActionExecutor.submitLauncher(JavaActionExecutor.java:979) > at > org.apache.oozie.action.hadoop.JavaActionExecutor.start(JavaActionExecutor.java:1134) > at > org.apache.oozie.command.wf.ActionStartXCommand.execute(ActionStartXCommand.java:228) > at > org.apache.oozie.command.wf.ActionStartXCommand.execute(ActionStartXCommand.java:63) > at org.apache.oozie.command.XCommand.call(XCommand.java:281) > at > org.apache.oozie.service.CallableQueueService$CompositeCallable.call(CallableQueueService.java:323) > at > org.apache.oozie.service.CallableQueueService$CompositeCallable.call(CallableQueueService.java:252) > at > org.apache.oozie.service.CallableQueueService$CallableWrapper.run(CallableQueueService.java:174) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:744) > Caused by: java.io.IOException: Cannot initialize Cluster. Please check your > configuration for mapreduce.framework.name and the correspond server > addresses. > at org.apache.hadoop.mapreduce.Cluster.initialize(Cluster.java:120) > at org.apache.hadoop.mapreduce.Cluster.<init>(Cluster.java:82) > at org.apache.hadoop.mapreduce.Cluster.<init>(Cluster.java:75) > at org.apache.hadoop.mapred.JobClient.init(JobClient.java:470) > at org.apache.hadoop.mapred.JobClient.<init>(JobClient.java:449) > at > org.apache.oozie.service.HadoopAccessorService$1.run(HadoopAccessorService.java:372) > at > org.apache.oozie.service.HadoopAccessorService$1.run(HadoopAccessorService.java:370) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548) > at > org.apache.oozie.service.HadoopAccessorService.createJobClient(HadoopAccessorService.java:379) > at > org.apache.oozie.action.hadoop.JavaActionExecutor.createJobClient(JavaActionExecutor.java:1185) > at > org.apache.oozie.action.hadoop.JavaActionExecutor.submitLauncher(JavaActionExecutor.java:927) > ... 10 more > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)