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https://issues.apache.org/jira/browse/SPARK-25449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-25449:
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Assignee: (was: Apache Spark)
> Don't send zero accumulators in heartbeats
> ------------------------------------------
>
> Key: SPARK-25449
> URL: https://issues.apache.org/jira/browse/SPARK-25449
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 2.4.0
> Reporter: Mukul Murthy
> Priority: Major
>
> 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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