liuhongqiang created SPARK-18297:
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Summary: Fail if SparkContext run a new Thread in yarn-cluster
Key: SPARK-18297
URL: https://issues.apache.org/jira/browse/SPARK-18297
Project: Spark
Issue Type: Bug
Components: YARN
Reporter: liuhongqiang
program:
public static void main(String[] args) {
Executors.newSingleThreadScheduledExecutor().scheduleAtFixedRate(new
Thread(new Runnable() {
@Override
public void run() {
SparkConf conf = new SparkConf();
conf.setAppName("SparkDemo");
JavaSparkContext sparkContext = new JavaSparkContext(conf);
JavaRDD<String> array =
sparkContext.parallelize(Lists.newArrayList("1", "2", "3", "4"));
System.out.println(array.count());
}
}), 0, 5000, TimeUnit.MILLISECONDS);
}
log:
16/11/02 11:16:47 INFO yarn.ApplicationMaster: Starting the user application in
a separate Thread
16/11/02 11:16:47 INFO yarn.ApplicationMaster: Waiting for spark context
initialization
16/11/02 11:16:47 INFO yarn.ApplicationMaster: Waiting for spark context
initialization ...
16/11/02 11:16:47 INFO yarn.ApplicationMaster: Final app status: SUCCEEDED,
exitCode: 0
problem:
mainMethod.invoke(null, userArgs.toArray)
finish(FinalApplicationStatus.SUCCEEDED, ApplicationMaster.EXIT_SUCCESS)
main method was finished, but sub thread may be not finished.
so should not invoke finish to shutdown dirver thread.
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