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https://issues.apache.org/jira/browse/DRILL-1370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steven Phillips updated DRILL-1370:
-----------------------------------
Fix Version/s: (was: 0.7.0)
Future
> Improve fragment staging
> ------------------------
>
> Key: DRILL-1370
> URL: https://issues.apache.org/jira/browse/DRILL-1370
> Project: Apache Drill
> Issue Type: Improvement
> Components: Execution - Flow
> Reporter: Jacques Nadeau
> Assignee: Steven Phillips
> Fix For: Future
>
> Attachments: DRILL-1370.patch
>
>
> Drill optimistically executes all major fragments of a query. In some
> situations, this greedy behavior is too optimistic, which causes portions of
> the query to swamp the IO path too early, starving earlier phases of the
> query. Our RPC backpressure should help manage this. However, with a high
> level of parallelization, the back pressure is too lenient.
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