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https://issues.apache.org/jira/browse/SPARK-6079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Or closed SPARK-6079.
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Resolution: Fixed
Target Version/s: 1.4.0
> Use index to speed up StatusTracker.getJobIdsForGroup()
> -------------------------------------------------------
>
> Key: SPARK-6079
> URL: https://issues.apache.org/jira/browse/SPARK-6079
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 1.3.0
> Reporter: Josh Rosen
> Assignee: Josh Rosen
> Priority: Minor
> Fix For: 1.4.0
>
>
> {{StatusTracker.getJobIdsForGroup()}} is implemented via a linear scan over a
> HashMap rather than using an index. This might be an expensive operation if
> there are many (e.g. thousands) of retained jobs. We can add a new index to
> speed this up.
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