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https://issues.apache.org/jira/browse/HBASE-21224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16652799#comment-16652799
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Allan Yang commented on HBASE-21224:
------------------------------------
{quote}
There is no efficient way ( O(1) ) to remove an element from
ThreadPoolExecutor.
{quote}
It is fine to iterate over the queue to delete the element inside. Just be
simple, no data structure change needed.
> Handle compaction queue duplication
> -----------------------------------
>
> Key: HBASE-21224
> URL: https://issues.apache.org/jira/browse/HBASE-21224
> Project: HBase
> Issue Type: Improvement
> Components: Compaction
> Reporter: Xu Cang
> Assignee: Xu Cang
> Priority: Minor
>
> Mentioned by [~allan163] that we may want to handle compaction queue
> duplication in this Jira https://issues.apache.org/jira/browse/HBASE-18451
> Creating this item for further assessment and discussion.
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