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Posted to issues@spark.apache.org by "Sandy Ryza (JIRA)" <ji...@apache.org> on 2015/05/11 19:22:02 UTC

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

Sandy Ryza created SPARK-7533:
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             Summary: 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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