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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2015/05/22 12:13:17 UTC

[jira] [Assigned] (SPARK-7826) Suppress extra calling getCacheLocs.

     [ https://issues.apache.org/jira/browse/SPARK-7826?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-7826:
-----------------------------------

    Assignee:     (was: Apache Spark)

> Suppress extra calling getCacheLocs.
> ------------------------------------
>
>                 Key: SPARK-7826
>                 URL: https://issues.apache.org/jira/browse/SPARK-7826
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>            Reporter: Takuya Ueshin
>
> There are too many extra call method {{getCacheLocs}} for {{DAGScheduler}}, which includes Akka communication.
> To improve {{DAGScheduler}} performance, suppress extra calling the method.
> In my application with over 1200 stages, the execution time became 3.8 min from 8.5 min with my patch.



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