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https://issues.apache.org/jira/browse/TEZ-2454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14551440#comment-14551440
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Rajesh Balamohan commented on TEZ-2454:
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lgtm. +1
> Change FetcherOrderedGroup to work as Callables instead of blocking threads
> ---------------------------------------------------------------------------
>
> Key: TEZ-2454
> URL: https://issues.apache.org/jira/browse/TEZ-2454
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Siddharth Seth
> Assignee: Siddharth Seth
> Attachments: TEZ-2454.1.wip.txt, TEZ-2454.2.txt, TEZ-2454.3.txt,
> TEZ-2454.4.txt
>
>
> The Fetcher threads for Ordered Input currently run and block till merge
> completes, which makes it difficult to use them via ThreadPools.
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