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https://issues.apache.org/jira/browse/YARN-3648?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sidharta Seethana reassigned YARN-3648:
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Assignee: Sidharta Seethana
> ContainerExecutor interface methods are too brittle
> ---------------------------------------------------
>
> Key: YARN-3648
> URL: https://issues.apache.org/jira/browse/YARN-3648
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Sidharta Seethana
> Assignee: Sidharta Seethana
>
> The ContainerExecutor interface today does not encapsulate method arguments
> in any way - this makes it brittle when executor implementations need
> additional arguments in order to implement certain functionality. A couple of
> example methods where this is a problem : startLocalizer , launchContainer -
> additional arguments would break the existing interface and would require
> changes to all executor implementations in YARN. In order to make this
> interface less brittle in the future, it would make sense to encapsulate
> arguments in some kind of a ‘context’ object which could be modified/extended
> without breaking the ContainerExecutor interface in the future.
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