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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2015/05/12 15:25:01 UTC

[jira] [Assigned] (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 ]

Apache Spark reassigned SPARK-7533:
-----------------------------------

    Assignee:     (was: Apache Spark)

> 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
>
> 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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