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https://issues.apache.org/jira/browse/DRILL-384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jacques Nadeau resolved DRILL-384.
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Resolution: Fixed
merged in e036515
> Move some Fragment initialization work to run() method
> ------------------------------------------------------
>
> Key: DRILL-384
> URL: https://issues.apache.org/jira/browse/DRILL-384
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Steven Phillips
> Assignee: Steven Phillips
> Attachments: DRILL-384.patch
>
>
> Currently, when initializing fragments for execution, ImplCreator.getExec()
> is run on the fragment plan, and the result RootExec object is passed to the
> constructor of the FragmentExecutor. This work all happens on an rpc thread,
> and can include setting up readers, which involves reading metadata from
> disk. It would be best to move this work to the run() method of the
> FragmentExecutor, since that method is called from a work thread.
> This will help speed up the initialization of fragments, especially when
> there are a large number of them.
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