AngersZhuuuu commented on pull request #31992:
URL: https://github.com/apache/spark/pull/31992#issuecomment-809854277
> Who is consuming this event in spark ?
> Btw, if all you want is monitor jvm stats (outside of spark ui), use
codahale integration instead ?
`AppStatusListener` will consumer this
```
override def onExecutorMetricsUpdate(event:
SparkListenerExecutorMetricsUpdate): Unit = {
```
I know spark metrics frame work can have a monitor on this. But when we
want to build an application analysis system like Dr.elephant. We want to get
app status from restful api, right? Driver's memory usage is an important
index too.
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