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https://issues.apache.org/jira/browse/MAPREDUCE-4599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13443504#comment-13443504
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Siddharth Seth commented on MAPREDUCE-4599:
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Couple of comments
- removeFromBlackList(nodeId) -> un-blacklisting of nodes is currently not
supported. Adding support for this (along with a criteria) should not be part
of the MR-3902 effort.
- the event type "N_NODE_WAS_BLACKLISTED" needs to be generated in AMNodeImpl
when the node enters a BLACKLISTED state.
> Ensure not to launch container on blacklisted nodes
> ---------------------------------------------------
>
> Key: MAPREDUCE-4599
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4599
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: applicationmaster
> Affects Versions: MR-3902
> Reporter: Tsuyoshi OZAWA
> Assignee: Tsuyoshi OZAWA
> Priority: Minor
> Attachments: MAPREDUCE-4599.patch
>
>
> The current implementation of RMContainerAllocator doesn't ensure not to
> launch containers on blacklisted nodes. This may cause some skews by tasks on
> bad nodes.
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