Github user devaraj-kavali commented on the issue:
https://github.com/apache/spark/pull/22623
Thanks @srowen for looking into this.
> ThreadUtils.scala
```
case NonFatal(t) if !t.isInstanceOf[TimeoutException] =>
throw new SparkException("Exception thrown in awaitResult: ", t)
```
Here the cause is getting wrapped as SparkException with the message. And
in SparkSubmit.scala, it is just printing this message and discarding the
caused exception.
> SparkSubmit.scala
```
override def doSubmit(args: Array[String]): Unit = {
try {
super.doSubmit(args)
} catch {
case e: SparkUserAppException =>
exitFn(e.exitCode)
case e: SparkException =>
printErrorAndExit(e.getMessage())
}
```
The other option is to print the whole stack trace instead of just message
here. Please let me know your thought, I can make change with this.
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