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From "Rajesh Balamohan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-15889) LLAP: Some tasks still run after hive cli is shutdown
Date Mon, 13 Feb 2017 06:36:41 GMT
Rajesh Balamohan created HIVE-15889:
---------------------------------------

             Summary: LLAP: Some tasks still run after hive cli is shutdown
                 Key: HIVE-15889
                 URL: https://issues.apache.org/jira/browse/HIVE-15889
             Project: Hive
          Issue Type: Bug
            Reporter: Rajesh Balamohan


E.g: In cross product case, the tight loop in merge join operator ignores any interrupt or
abort flag checks, causing the tasks to be in running state even when the client cli is quit.

intensionally written cross product query to simulate this.
{noformat}
hive> select count(1) from lineitem, orders;;
{noformat}

Even when the cli is quit, LLAP would continue executing the task for quite sometime. E.g
stack trace

{noformat}
"TezTaskRunner" #1945 daemon prio=5 os_prio=0 tid=0x00007fe9e43a5000 nid=0x4c8 runnable [0x00007fc8d881b000]
   java.lang.Thread.State: RUNNABLE
	at org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.copyToStandardObject(ObjectInspectorUtils.java:453)
	at org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.mergeJoinComputeKeys(CommonMergeJoinOperator.java:603)
	at org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.process(CommonMergeJoinOperator.java:207)
	at org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource$GroupIterator.next(ReduceRecordSource.java:351)
	at org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource.pushRecord(ReduceRecordSource.java:282)
	at org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.fetchOneRow(CommonMergeJoinOperator.java:410)
	at org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.fetchNextGroup(CommonMergeJoinOperator.java:381)
	at org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.doFirstFetchIfNeeded(CommonMergeJoinOperator.java:491)
	at org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.process(CommonMergeJoinOperator.java:209)
	at org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource$GroupIterator.next(ReduceRecordSource.java:351)
	at org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource.pushRecord(ReduceRecordSource.java:282)
	at org.apache.hadoop.hive.ql.exec.tez.ReduceRecordProcessor.run(ReduceRecordProcessor.java:319)
	at org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:185)
	at org.apache.hadoop.hive.ql.exec.tez.TezProcessor.run(TezProcessor.java:168)
	at org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:370)
	at org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:73)
	at org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:61)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:422)
{noformat}




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