hustfxj created SPARK-19264:
-------------------------------
Summary: Work maybe should start driver, the same to AM of yarn
Key: SPARK-19264
URL: https://issues.apache.org/jira/browse/SPARK-19264
Project: Spark
Issue Type: Improvement
Reporter: hustfxj
I think work can't start driver by "ProcessBuilderLike", thus we can't know
the application's main thread is finished or not if the application's main
thread contains some daemon threads. Because the program terminates when there
no longer is any non-daemon thread running (or someone called System.exit). The
main thread can have finished long ago.
worker should start driver like AM of YARN . As followed:
```
mainMethod.invoke(null, userArgs.toArray)
finish(FinalApplicationStatus.SUCCEEDED, ApplicationMaster.EXIT_SUCCESS)
logDebug("Done running users class")
```
Then the work can monitor the driver's main thread, and know the application's
state.
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