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Posted to issues@spark.apache.org by "Josh Rosen (JIRA)" <ji...@apache.org> on 2015/04/02 22:13:58 UTC

[jira] [Updated] (SPARK-6079) Use index to speed up StatusTracker.getJobIdsForGroup()

     [ https://issues.apache.org/jira/browse/SPARK-6079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Josh Rosen updated SPARK-6079:
------------------------------
    Fix Version/s: 1.3.1

> 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: 1.3.1, 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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