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https://issues.apache.org/jira/browse/TEZ-1789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14235260#comment-14235260
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Jeff Zhang commented on TEZ-1789:
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AsyncDispatcher don't allow set thread name. It would be better to be able to
set different thread name, otherwise from the logs speculation are still in the
same thread with others. maybe confuse users.
> Move speculator processing off the central dispatcher
> -----------------------------------------------------
>
> Key: TEZ-1789
> URL: https://issues.apache.org/jira/browse/TEZ-1789
> Project: Apache Tez
> Issue Type: Sub-task
> Reporter: Bikas Saha
> Assignee: Bikas Saha
> Attachments: TEZ-1789.1.patch
>
>
> There may be a large number of such events and speculators may have expensive
> logic while handling them. Moving off the central dispatcher will keep this
> off critical execution path.
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