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https://issues.apache.org/jira/browse/TEZ-1069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14275142#comment-14275142
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Jeff Zhang commented on TEZ-1069:
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2 options for increase memory:
* Only increase the memory for the task with failed task attempt due to OOM
* Increase the memory for all the tasks of this vertex
IMO the second option would be better.
> Support ability to re-size a task attempt when previous attempts fail due to
> resource constraints
> -------------------------------------------------------------------------------------------------
>
> Key: TEZ-1069
> URL: https://issues.apache.org/jira/browse/TEZ-1069
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Hitesh Shah
> Assignee: Jeff Zhang
>
> Consider a case where attempts for the final stage in a long DAG fails due to
> out of memory. In such a scenario, the framework ( or via the base vertex
> manager ) should be able to change the task specifications on the fly to
> trigger a re-run with modified specs.
> Changes could be both java opts changes as well as container resource
> requirements.
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