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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-11264) LLAP: PipelineSorter got stuck
Date Tue, 14 Jul 2015 23:30:04 GMT
Sergey Shelukhin created HIVE-11264:
---------------------------------------

             Summary: LLAP: PipelineSorter got stuck
                 Key: HIVE-11264
                 URL: https://issues.apache.org/jira/browse/HIVE-11264
             Project: Hive
          Issue Type: Sub-task
            Reporter: Sergey Shelukhin


Saving here for now, in case someone seems something similar or has a sudden insight.
On parallel query workload, at some point, one query became stuck while everything else finished.
The query ended with 3 reducer stages, 1 vertex each. The only things running were Reducer
3 and Reducer 2 (10-machine cluster), 3 waiting for 2, and 2 stuck for 20 minutes.
Unfortunately log level was WARN so there's not much in terms of logs.
When LLAP cluster was stopped, the thread running reducer 2 died like so: {noformat}
2015-07-14 19:02:20,136 [TezTaskRunner_attempt_1435700346116_1889_1_06_000000_104(attempt_1435700346116_1889_1_06_000000_104)]
ERROR org.apache.hadoop.hive.ql.exec.MapJoinOperator: Unexpected exception from MapJoinOperator
: java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.FutureTask@580b9a95
rejected from java.util.concurrent.ThreadPoolExecutor@61d1d95b[Terminated, pool size = 0,
active threads = 0, queued tasks = 0, completed tasks = 753]
org.apache.hadoop.hive.ql.metadata.HiveException: java.util.concurrent.RejectedExecutionException:
Task java.util.concurrent.FutureTask@580b9a95 rejected from java.util.concurrent.ThreadPoolExecutor@61d1d95b[Terminated,
pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 753]
   at org.apache.hadoop.hive.ql.exec.ReduceSinkOperator.process(ReduceSinkOperator.java:402)
   at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:872)
   at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.internalForward(CommonJoinOperator.java:643)
   at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.genUniqueJoinObject(CommonJoinOperator.java:656)
   at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.genUniqueJoinObject(CommonJoinOperator.java:659)
   at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.checkAndGenObject(CommonJoinOperator.java:755)
   at org.apache.hadoop.hive.ql.exec.MapJoinOperator.process(MapJoinOperator.java:415)
   at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:872)
   at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.internalForward(CommonJoinOperator.java:643)
   at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.genUniqueJoinObject(CommonJoinOperator.java:656)
   at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.genUniqueJoinObject(CommonJoinOperator.java:659)
   at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.checkAndGenObject(CommonJoinOperator.java:755)
   at org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.joinObject(CommonMergeJoinOperator.java:309)
   at org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.joinOneGroup(CommonMergeJoinOperator.java:272)
   at org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.joinOneGroup(CommonMergeJoinOperator.java:265)
   at org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.joinFinalLeftData(CommonMergeJoinOperator.java:462)
   at org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.closeOp(CommonMergeJoinOperator.java:383)
   at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:651)
   at org.apache.hadoop.hive.ql.exec.tez.ReduceRecordProcessor.close(ReduceRecordProcessor.java:317)
   at org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:172)
   at org.apache.hadoop.hive.ql.exec.tez.TezProcessor.run(TezProcessor.java:146)
   at org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:349)
   at org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:71)
   at org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:60)
   at java.security.AccessController.doPrivileged(Native Method)
   at javax.security.auth.Subject.doAs(Subject.java:415)
   at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1654)
   at org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:60)
   at org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:35)
   at org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
   at java.util.concurrent.FutureTask.run(FutureTask.java:262)
   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
   at java.lang.Thread.run(Thread.java:745)
Caused by: java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.FutureTask@580b9a95
rejected from java.util.concurrent.ThreadPoolExecutor@61d1d95b[Terminated, pool size = 0,
active threads = 0, queued tasks = 0, completed tasks = 753]
   at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2048)
   at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:821)
   at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1372)
   at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:132)
   at org.apache.tez.runtime.library.common.sort.impl.PipelinedSorter.sort(PipelinedSorter.java:251)
   at org.apache.tez.runtime.library.common.sort.impl.PipelinedSorter.collect(PipelinedSorter.java:288)
   at org.apache.tez.runtime.library.common.sort.impl.PipelinedSorter.write(PipelinedSorter.java:262)
   at org.apache.tez.runtime.library.output.OrderedPartitionedKVOutput$1.write(OrderedPartitionedKVOutput.java:164)
   at org.apache.hadoop.hive.ql.exec.tez.TezProcessor$TezKVOutputCollector.collect(TezProcessor.java:217)
   at org.apache.hadoop.hive.ql.exec.ReduceSinkOperator.collect(ReduceSinkOperator.java:541)
   at org.apache.hadoop.hive.ql.exec.ReduceSinkOperator.process(ReduceSinkOperator.java:385)
   ... 33 more
{noformat}

Looks like PipelineSorter either got stuck in execution, or some other things were in the
thread pool and stuck (again note no other task was running on the machine), or something.



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