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https://issues.apache.org/jira/browse/YARN-4525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15074355#comment-15074355
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Ishai Menache commented on YARN-4525:
-------------------------------------
We suggest the following fix:
current code:
a = a.headMap(end, true);
fix:
if (end < a.lastKey()) {
a = a.headMap(end, true);
}
Thanks to [~jyaniv] for helping debug this issue.
> Bug in RLESparseResourceAllocation.getRangeOverlapping(...)
> -----------------------------------------------------------
>
> Key: YARN-4525
> URL: https://issues.apache.org/jira/browse/YARN-4525
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Ishai Menache
> Assignee: Carlo Curino
>
> One of our tests detected a corner case in getRangeOverlapping: When the
> RLESparseResourceAllocation object is a result of a merge operation, the
> underlying map is a "view" within some range. If 'end' is outside that
> range, headMap(..) throws an uncaught exception.
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