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Posted to mapreduce-dev@hadoop.apache.org by "Rohith Sharma K S (JIRA)" <ji...@apache.org> on 2018/02/19 14:59:00 UTC
[jira] [Resolved] (MAPREDUCE-7055) MR jobs are failing with Could
not find or load main class for MRAppMaster
[ https://issues.apache.org/jira/browse/MAPREDUCE-7055?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rohith Sharma K S resolved MAPREDUCE-7055.
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Resolution: Resolved
Closing this JIRA as Resolved since YARN-7677 is reverted.
> 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
> Affects Versions: 3.1.0, 3.2.0
> Reporter: Rohith Sharma K S
> Priority: Blocker
> Attachments: app-logs.zip, conf.zip
>
>
> 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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