[jira] [Created] (SPARK-12411) Reconsider executor heartbeats rpc timeout

["Nong Li (JIRA)" <ji...@apache.org>]

Nong Li created SPARK-12411:
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             Summary: Reconsider executor heartbeats rpc timeout
                 Key: SPARK-12411
                 URL: https://issues.apache.org/jira/browse/SPARK-12411
             Project: Spark
          Issue Type: Improvement
          Components: Spark Core
            Reporter: Nong Li


Currently, the timeout for checking when an executor is failed is the same as the timeout of the sender ("spark.network.timeout") which defaults to 120s. 

This means if there is a network issue, the executor only gets one try to heartbeat which probably causes the failure detection to be flaky. 

The executor has a config to control how often to heartbeat (spark.executor.heartbeatInterval) which defaults to 10s. This combination of configs doesn't seem to make sense. The heartbeat rpc timeout should probably be less than or equal to the heartbeatInterval.



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