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https://issues.apache.org/jira/browse/DRILL-2219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14339194#comment-14339194
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Chris Westin commented on DRILL-2219:
-------------------------------------
ConcurrentHashMap<> does handle that -- I've used it to fix a couple of other
locations with the same problem. See
http://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ConcurrentHashMap.html
.
> Concurrent modification exception in TopLevelAllocator if a child allocator
> is added during loop in close()
> -----------------------------------------------------------------------------------------------------------
>
> Key: DRILL-2219
> URL: https://issues.apache.org/jira/browse/DRILL-2219
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Flow
> Reporter: Jason Altekruse
> Assignee: Jason Altekruse
> Priority: Critical
> Fix For: 0.8.0
>
> Attachments: DRILL-2219-v2.patch, DRILL-2219.patch
>
>
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