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From "Rahul Challapalli (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-2161) Flatten on a list within a list on a large data set results in an IOB Exception
Date Wed, 04 Feb 2015 17:03:34 GMT
Rahul Challapalli created DRILL-2161:
----------------------------------------

             Summary: Flatten on a list within a list on a large data set results in an IOB
Exception
                 Key: DRILL-2161
                 URL: https://issues.apache.org/jira/browse/DRILL-2161
             Project: Apache Drill
          Issue Type: Bug
          Components: Execution - Flow, Execution - Relational Operators
            Reporter: Rahul Challapalli
            Assignee: Jason Altekruse
         Attachments: data.json

git.commit.id.abbrev=3e33880

I attached the data set which contains 2 records.

Below query works fine on the attached data set
{code}
0: jdbc:drill:schema=dfs.drillTestDir> select uid, flatten(d.lst_lst) lst from `data.json`
d;
+------------+------------+
|    uid     |    lst     |
+------------+------------+
| 1          | [1,2,3,4,5] |
| 1          | [2,3,4,5,6] |
| 2          | [1,2,3,4,5] |
| 2          | [2,3,4,5,6] |
+------------+------------+
{code}

However if I copy the same data set 50, 000 times, and run the same query, it fails with IOB.
Below is the contents of the log file
{code}
java.lang.IndexOutOfBoundsException: index: 16384, length: 4 (expected: range(0, 16384))
	at io.netty.buffer.DrillBuf.checkIndexD(DrillBuf.java:156) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:4.0.24.Final]
	at io.netty.buffer.DrillBuf.chk(DrillBuf.java:178) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:4.0.24.Final]
	at io.netty.buffer.DrillBuf.getInt(DrillBuf.java:447) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:4.0.24.Final]
	at org.apache.drill.exec.vector.UInt4Vector$Accessor.get(UInt4Vector.java:309) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.vector.complex.RepeatedListVector.populateEmpties(RepeatedListVector.java:385)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.vector.complex.RepeatedListVector.access$300(RepeatedListVector.java:54)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.vector.complex.RepeatedListVector$Mutator.setValueCount(RepeatedListVector.java:132)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.setValueCount(ProjectRecordBatch.java:248)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.doWork(ProjectRecordBatch.java:181)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:93)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:134)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:99) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:89) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.flatten.FlattenRecordBatch.innerNext(FlattenRecordBatch.java:122)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:99) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:89) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:134)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:67) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.innerNext(ScreenCreator.java:97)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:57) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:110) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at org.apache.drill.exec.work.WorkManager$RunnableWrapper.run(WorkManager.java:254) [drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_71]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_71]
	at java.lang.Thread.run(Thread.java:745) [na:1.7.0_71]
{code}



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