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Posted to mapreduce-dev@hadoop.apache.org by "Rohith Sharma K S (JIRA)" <ji...@apache.org> on 2018/02/17 19:30:04 UTC

[jira] [Created] (MAPREDUCE-7055) MR jobs are failing with Could not find or load main class for MRAppMaster

Rohith Sharma K S created MAPREDUCE-7055:
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             Summary: MR jobs are failing with Could not find or load main class for MRAppMaster
                 Key: MAPREDUCE-7055
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7055
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Rohith Sharma K S


It is observed that MR jobs are failing with *Error: Could not find or load main class org.apache.hadoop.mapreduce.v2.app.MRAppMaster" even though HADOOP_MAPRED_HOME is set in mapred-site.xml

Tried building tar.gz in branch-3.0 and seems works fine with same configurations. But in branch-3.1 and trunk, it is failing. I got launch_container.sh for both  and compared classpath  exported before launching AM. Both classpath entries are same, but AM launching is failing with above mentioned error. 

Its better to confirm as 3.1 release is going to happen soon.



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