Mohammad Kamrul Islam created MAPREDUCE-6240:
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Summary: 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
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}
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