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Posted to issues@spark.apache.org by "Mukul Murthy (JIRA)" <ji...@apache.org> on 2018/09/17 21:32:00 UTC

[jira] [Created] (SPARK-25449) Don't send zero accumulators in heartbeats

Mukul Murthy created SPARK-25449:
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             Summary: Don't send zero accumulators in heartbeats
                 Key: SPARK-25449
                 URL: https://issues.apache.org/jira/browse/SPARK-25449
             Project: Spark
          Issue Type: Task
          Components: Spark Core
    Affects Versions: 2.4.0
            Reporter: Mukul Murthy


Heartbeats sent from executors to the driver every 10 seconds contain metrics and are generally on the order of a few KBs. However, for large jobs with lots of tasks, heartbeats can be on the order of tens of MBs, causing tasks to die with heartbeat failures. We can mitigate this by not sending zero metrics to the driver.



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