Attila Sasvari commented on OOZIE-2687:

[~pbacsko] many thanks for the initial patch, do you mind if I take this task 

> Create XML schema for launcher configurations
> ---------------------------------------------
>                 Key: OOZIE-2687
>                 URL: https://issues.apache.org/jira/browse/OOZIE-2687
>             Project: Oozie
>          Issue Type: Sub-task
>            Reporter: Peter Cseh
>            Assignee: Peter Bacsko
> It was possible to manipulate the MapperLauncher's environment through 
> properties like:
> # mapreduce.map.memory.mb     
> # mapreduce.map.cpu.vcores
> # mapred.child.env
> # mapred.child.java.opts      
> # mapred.job.queue.name  - ability to set launcher queue
> E.g. We were using mapred.child.env to pass SPARK_HOME to the LauncherMapper 
> and make PySpark work. 
> Fixing OOZIE-2596 added a hack. We should decide how we support or break 
> compatibility and how we allow the manipulation of the Launcher environment.
> Verify if the new launcher section in global applies to actions in 
> sub-workflows as well. It did not use to work before and was only fixed in 
> OOZIE-2030. It would be good to have that testcase 
> (TestSubWorkflowActionExecutor. testParentGlobalConf) updated with the new 
> launcher section as well.

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