[jira] [Created] (YARN-6444) Java options being duplicated in YARN

["Ravindra Sandaruwan Ranaweera (JIRA)" <ji...@apache.org>]

Ravindra Sandaruwan Ranaweera created YARN-6444:
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             Summary: Java options being duplicated in YARN
                 Key: YARN-6444
                 URL: https://issues.apache.org/jira/browse/YARN-6444
             Project: Hadoop YARN
          Issue Type: Bug
          Components: scripts, yarn
    Affects Versions: 2.7.3
         Environment: CentOS 6.5, Hadoop 2.7.3, java version "1.7.0_79"
            Reporter: Ravindra Sandaruwan Ranaweera


Additional Java options added to "yarn-env.sh" such as 

export YARN_NODEMANAGER_OPTS="$YARN_NODEMANAGER_OPTS -Duser.country=XX"

adds the same Java option two times to YARN process. Processes are started with "service" command and environment variables of the process are checked with "sed -e 's/\x0/\n/g' /proc/<PID>/environ".

This occurs because "yarn-env.sh" is executed two times from "/usr/lib/hadoop-yarn/sbin/yarn-daemon.sh" and "/usr/lib/hadoop-yarn/bin/yarn" when starting.

This is already fixed in Hadoop3.0.0-alpha1 but I think it is better to correct this in Hadoop2.* too.



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