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Posted to issues@spark.apache.org by "Thomas Graves (JIRA)" <ji...@apache.org> on 2015/05/20 15:29:59 UTC

[jira] [Resolved] (SPARK-7533) Decrease spacing between AM-RM heartbeats.

     [ https://issues.apache.org/jira/browse/SPARK-7533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thomas Graves resolved SPARK-7533.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.5.0
         Assignee: Zoltán Zvara

> Decrease spacing between AM-RM heartbeats.
> ------------------------------------------
>
>                 Key: SPARK-7533
>                 URL: https://issues.apache.org/jira/browse/SPARK-7533
>             Project: Spark
>          Issue Type: Improvement
>          Components: YARN
>    Affects Versions: 1.3.1
>            Reporter: Sandy Ryza
>            Assignee: Zoltán Zvara
>             Fix For: 1.5.0
>
>
> The current default of spark.yarn.scheduler.heartbeat.interval-ms is 5 seconds.  This is really long.  For reference, the MR equivalent is 1 second.
> To avoid noise and unnecessary communication, we could have a fast rate for when we're waiting for executors and a slow rate for when we're just heartbeating.



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