Github user cenyuhai closed the pull request at:
https://github.com/apache/spark/pull/15109
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GitHub user cenyuhai opened a pull request:
https://github.com/apache/spark/pull/15109
[SPARK-17501][CORE] Record executor heartbeat timestamp when received
heartbeat event.
## What changes were proposed in this pull request?
Record executor's latest heartbeat timestamp when re
