[DRILL-2013] Flatten has issues when a filter condition fails for all the records

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 0.8.0
• Component/s: Execution - Relational Operators
• Assignee: Jason Altekruse
• Reporter: Rahul Kumar Challapalli
• Created: 15/Jan/15 18:27
• Updated: 22/Apr/15 22:01
• Resolved: 27/Feb/15 15:08

Description

git.commit.id.abbrev=b491cdb

When the filter condition fails for all the records and we use flatten in the query, then drill fails. i have tried this with more than one record

Data Set :

{
  "id" : "01",
  "id1" : 1,
  "list" : [
    {"col1":"0001","name":"nn001"},
    {"col2":"0002","name":"nn02"}
  ]
}

Below query fails :

0: jdbc:drill:schema=dfs.drillTestDir> select s.id, s.id1, flatten(s.list) fl from `sample.json` s where s.id='02';
Query failed: Query failed: Failure while running fragment., index: -4, length: 4 (expected: range(0, 16384)) [ d2b028fe-2c0c-4652-be61-a93f08862883 on qa-node190.qa.lab:31010 ]
[ d2b028fe-2c0c-4652-be61-a93f08862883 on qa-node190.qa.lab:31010 ]

Below is the error from the logs :

java.lang.IndexOutOfBoundsException: index: -4, 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$Accessor.get(UInt4Vector.java:297) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.vector.complex.RepeatedMapVector$RepeatedMapAccessor.getValueCount(RepeatedMapVector.java:527) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.physical.impl.flatten.FlattenRecordBatch.doWork(FlattenRecordBatch.java:155) ~[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.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:132) ~[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$ScreenRoot.innerNext(ScreenCreator.java:97) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:57) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:114) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.work.WorkManager$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]

Let me know if you have any questions