[HIVE-15889] LLAP: Some tasks still run after hive cli is shutdown

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.2.0
• Hadoop Flags: Reviewed
• Assignee: Rajesh Balamohan
• Reporter: Rajesh Balamohan
• Created: 13/Feb/17 06:36
• Updated: 25/Jul/17 20:04
• Resolved: 14/Feb/17 03:33

Description

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.

hive> select count(1) from lineitem, orders;;

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

"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)