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https://issues.apache.org/jira/browse/MAPREDUCE-2748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinod Kumar Vavilapalli reopened MAPREDUCE-2748:
------------------------------------------------

      Assignee:     (was: Arun C Murthy)

I am reopening this ticket for tracking the effort to make the list of envs to 
be configurable.

MAPREDUCE-2880 already fixed the code to pass correct values for essential 
variables like HADOOP_COMMON_HOME from NM down to the containers. It will be 
useful to have this configurable - like JAVA_HOME for containers separate from 
the NM's JAVA_HOME, or may be extra envs that NM doesn't need to be set with.

Also another minor TODO is to verify that the streaming examples I commented 
about above are working now.
                
> [MR-279] NM should pass a whitelisted environmental variables to the 
> container 
> -------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2748
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2748
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2, nodemanager
>    Affects Versions: 0.23.0
>            Reporter: Vinod Kumar Vavilapalli
>             Fix For: 0.23.0
>
>
> This is similar to [MAPREDUCE-103] . We should pass a whitelisted set of 
> environment variables from NM env to the container. By default, we should 
> pass HADOOP_* variables. This can be a simple configuration key that 
> NodeManager reads.
> Today, we already either pass the following correctly or assume that it works 
> but doesn't
>  - YARN_HOME: ContainerLaunch#writeLaunchEnv
>  - HADOOP_CLIENT_OPTS: MapReduceChildJVM#setVMEnv
>  - JAVA_HOME: TaskAttemptImpl#createContainerLaunchContext - Works by 
> shell-expansion.
>  - LD_LIBRARY_PATH: Assumed to work via shell-expansion but doesn't.

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