sekikn opened a new pull request #23488: [SPARK-26564] Fix misleading error 
message about spark.network.timeout and spark.executor.heartbeatInterval
URL: https://github.com/apache/spark/pull/23488
 
 
   ## What changes were proposed in this pull request?
   
   If users set equivalent values to spark.network.timeout and 
spark.executor.heartbeatInterval, they get the following message:
   
   ```
   java.lang.IllegalArgumentException: requirement failed: The value of 
spark.network.timeout=120s must be no less than the value of 
spark.executor.heartbeatInterval=120s.
   ```
   
   But it's misleading since it can be read as they could be equal. So this PR 
replaces "no less than" with "greater than".
   
   ## How was this patch tested?
   
   Ran Spark with equivalent values for them manually and confirmed that the 
revised message was displayed.

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