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https://issues.apache.org/jira/browse/YARN-10379?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ferenc Erdelyi reassigned YARN-10379:
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Assignee: Ferenc Erdelyi (was: Benjamin Teke)
> Refactor ContainerExecutor exit code Exception handling
> -------------------------------------------------------
>
> Key: YARN-10379
> URL: https://issues.apache.org/jira/browse/YARN-10379
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: yarn
> Reporter: Benjamin Teke
> Assignee: Ferenc Erdelyi
> Priority: Minor
>
> **Currently every time a shell command is executed and returns with a
> non-zero exitcode an exception gets thrown. But along the call tree this
> exception gets catched, after some info/warn logging and other processing
> steps rethrown, possibly packaged to another exception. For example:
> * from PrivilegedOperationExecutor.executePrivilegedOperation -
> ExitCodeException catch (as IOException), PrivilegedOperationException thrown
> * then in LinuxContainerExecutor.startLocalizer -
> PrivilegedOperationException catch, exitCode collection, logging, IOException
> rethrown
> * then in ResourceLocalizationService.run - generic Exception catch, but
> there is a TODO for separate ExitCodeException handling, however that
> information is only present here in an error message string
> This flow could be simplified and unified in the different executors. For
> example use one specific exception till the last possible step, catch it only
> where it is necessary and keep the exitcode as it could be used later in the
> process. This change could help with maintainability and readability.
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