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https://issues.apache.org/jira/browse/SPARK-27419?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shixiong Zhu resolved SPARK-27419.
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Resolution: Fixed
Fix Version/s: 2.4.2
> When setting spark.executor.heartbeatInterval to a value less than 1 seconds,
> it will always fail
> -------------------------------------------------------------------------------------------------
>
> Key: SPARK-27419
> URL: https://issues.apache.org/jira/browse/SPARK-27419
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.4.0, 2.4.1
> Reporter: Shixiong Zhu
> Assignee: Shixiong Zhu
> Priority: Major
> Fix For: 2.4.2
>
>
> When setting spark.executor.heartbeatInterval to a value less than 1 seconds
> in branch-2.4, it will always fail because the value will be converted to 0
> and the heartbeat will always timeout and finally kill the executor.
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