[jira] [Updated] (ASTERIXDB-1838) Sporadic failures in JobFailureTest

["Michael Blow (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ASTERIXDB-1838?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Blow updated ASTERIXDB-1838:
------------------------------------

Another recent occurrence of this:
https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-notopic/org.apache.hyracks.examples$hyracks-integration-tests/4846/testReport/junit/org.apache.hyracks.tests.integration/JobFailureTest/failureOnCreatePushRuntime/

> Sporadic failures in JobFailureTest
> -----------------------------------
>
>                 Key: ASTERIXDB-1838
>                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-1838
>             Project: Apache AsterixDB
>          Issue Type: Bug
>            Reporter: Yingyi Bu
>            Assignee: Yingyi Bu
>
> JobFailureTest sporadically fails but the failure is not so often.
> {noformat}
> Error Message
> Failure: CreatePushRuntime:0, InitializeCounter:1, OpenCloseCounter:0false
> Stacktrace
> java.lang.AssertionError: Failure: CreatePushRuntime:0, InitializeCounter:1, OpenCloseCounter:0false
> 	at org.junit.Assert.fail(Assert.java:88)
> 	at org.junit.Assert.assertTrue(Assert.java:41)
> 	at org.apache.hyracks.tests.integration.JobFailureTest.execTest(JobFailureTest.java:56)
> 	at org.apache.hyracks.tests.integration.JobFailureTest.failureOnCreatePushRuntime(JobFailureTest.java:36)
> Standard Error
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.jav
> ...[truncated 16300460 chars]...
> 84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> org.apache.hyracks.api.exceptions.HyracksDataException: null
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:228)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:84)
> 	at org.apache.hyracks.control.nc.Task.run(Task.java:273)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
> 	at org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:222)
> 	... 5 more
> {noformat}



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