[jira] [Commented] (SPARK-1946) Submit stage after executors have been registered

["Zhihui (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-1946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14010877#comment-14010877 ] 

Zhihui commented on SPARK-1946:
-------------------------------

I submit a PR for proposal-1
https://github.com/apache/spark/pull/900


> Submit stage after executors have been registered
> -------------------------------------------------
>
>                 Key: SPARK-1946
>                 URL: https://issues.apache.org/jira/browse/SPARK-1946
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 1.0.0
>            Reporter: Zhihui
>         Attachments: Spark Task Scheduler Optimization Proposal.pptx
>
>
> Because creating TaskSetManager and registering executors are asynchronous, in most situation, early stages' tasks run without preferred locality.
> A simple solution is sleeping few seconds in application, so that executors have enough time to register.
> A better way is to make DAGScheduler submit stage after a few of executors have been registered by configuration properties.
> # submit stage only after successfully registered executors arrived the ratio, default value 0
> spark.executor.registeredRatio = 0.8
> # whatever registeredRatio is arrived, submit stage after the maxRegisteredWaitingTime(millisecond), default value 10000
> spark.executor.maxRegisteredWaitingTime = 5000



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