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https://issues.apache.org/jira/browse/DRILL-4000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14984224#comment-14984224
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ASF GitHub Bot commented on DRILL-4000:
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Github user jacques-n commented on the pull request:
https://github.com/apache/drill/pull/227#issuecomment-152783405
Unit and regression suites pass.
> In all non-root fragments, Drill recreates storage plugin instances for every
> minor fragment
> --------------------------------------------------------------------------------------------
>
> Key: DRILL-4000
> URL: https://issues.apache.org/jira/browse/DRILL-4000
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Jacques Nadeau
> Assignee: Jacques Nadeau
> Fix For: 1.3.0
>
>
> Drill is creating ephemeral storage plugin instances when a plan is
> deserialized. As such, every minor fragment of a query has Drill create a
> separate storage plugin instance. Depending on the cost of storage plugin
> creation, this could be quite expensive.
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