[GitHub] [spark] JQ-Cao opened a new pull request #30495: [SPARK-33548][WEBUI] display the jvm peak memory usage on the executor ui

[GitBox]

JQ-Cao opened a new pull request #30495:
URL: https://github.com/apache/spark/pull/30495


   # What changes were proposed in this pull request?
   display the jvm peak memory usage on the executors page to help user tune 
"spark.executor.memory" and "spark.executor.memoryOverhead"
   
   # Why are the changes needed?
   Peak Execution Memory can only be obtained through restAPI and cannot be 
displayed on Spark Executors UI intuitively,
   although spark users tune spark executor memory are dependent on the 
metrics. Therefore, it is very important to display the peak memory usage on 
the spark UI.
   
   
   # Does this PR introduce any user-facing change?
   NO
   
   # How was this patch tested?
   The pr only involves minor changes to the page and does not affect other 
functions,
   The manual test results are as follows.
   
   
![image](https://user-images.githubusercontent.com/7624181/100187502-308f7180-2f23-11eb-82a6-9739c555fb80.png)
   


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