Xuefu Zhang created HIVE-7525:
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             Summary: Research to find out if it's possible to submit Spark 
jobs concurrently using shared SparkContext
                 Key: HIVE-7525
                 URL: https://issues.apache.org/jira/browse/HIVE-7525
             Project: Hive
          Issue Type: Task
          Components: Spark
            Reporter: Xuefu Zhang
            Assignee: Chao


Refer to HIVE-7503 and SPARK-2688. Find out if it's possible to submit multiple 
spark jobs concurrently using a shared SparkContext. SparkClient's code can be 
manipulated for this test. Here is the process:

1. Transform rdd1 to rdd2 using some transformation.
2. call rdd2.cache() to persist it in memory.
3. in two threads, calling accordingly:
    Thread a. rdd2 -> rdd3; rdd3.foreach()
    Thread b. rdd2 -> rdd4; rdd4.foreach()

It would be nice to find out monitoring and error reporting aspects.



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