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  1. Spark
  2. SPARK-25449

Don't send zero accumulators in heartbeats

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.4.0
    • Fix Version/s: 3.0.0
    • Component/s: Spark Core
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      Description

      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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            • Assignee:
              mukulmurthy Mukul Murthy
              Reporter:
              mukulmurthy Mukul Murthy
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              • Created:
                Updated:
                Resolved: