Andries Engelbrecht created DRILL-2105:
------------------------------------------

             Summary: Query fails when using flatten on JSON data where some 
documents have an empty array
                 Key: DRILL-2105
                 URL: https://issues.apache.org/jira/browse/DRILL-2105
             Project: Apache Drill
          Issue Type: Bug
          Components: Execution - Operators
    Affects Versions: 0.7.0
         Environment: MFS with JSON
            Reporter: Andries Engelbrecht
            Assignee: Chris Westin


Drill query fails when using flatten on an array, where some records contain an 
empty array. Especially with larger data sets where the number of JSON 
documents are greater than 100k.

Using twitter data as sample.

select flatten (entities.hashtags) from dfs.foo.`file.json`;

Empty array
  "entities": {
    "trends": [],
    "symbols": [],
    "urls": [
      {
        "expanded_url": "http://on.nfl.com/1BkThQF";,
        "indices": [
          118,
          140
        ],
        "display_url": "on.nfl.com/1BkThQF",
        "url": "http://t.co/Unr5KFy6hG";
      }
    ],
    "hashtags": [],
    "user_mentions": [
      {
        "id": 19362299,
        "name": "NFL Network",
        "indices": [
          3,
          14
        ],
        "screen_name": "nflnetwork",
        "id_str": "19362299"
      }
    ]
  },

Array with content

  "entities": {
    "trends": [],
    "symbols": [],
    "urls": [],
    "hashtags": [
      {
        "text": "djpreps",
        "indices": [
          47,
          55
        ]
      },
      {
        "text": "MSPreps",
        "indices": [
          56,
          64
        ]
      }
    ],
    "user_mentions": []
  },


Log output

2015-01-27 02:26:13,478 [2b3908b9-cf08-3fd5-3bd8-ebb6bb5b70f1:foreman] INFO  
o.a.d.e.store.mock.MockStorageEngine - Failure while attempting to check for 
Parquet metadata file.
java.io.IOException: Open failed for file: /data/twitter/nfl/2015, error: 
Invalid argument (22)
        at com.mapr.fs.MapRClientImpl.open(MapRClientImpl.java:191) 
~[maprfs-4.0.1.28318-mapr.jar:4.0.1.28318-mapr]
        at com.mapr.fs.MapRFileSystem.open(MapRFileSystem.java:776) 
~[maprfs-4.0.1.28318-mapr.jar:4.0.1.28318-mapr]
        at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:800) 
~[hadoop-common-2.4.1-mapr-1408.jar:na]
        at 
org.apache.drill.exec.store.dfs.shim.fallback.FallbackFileSystem.open(FallbackFileSystem.java:94)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.store.dfs.BasicFormatMatcher$MagicStringMatcher.matches(BasicFormatMatcher.java:138)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.store.dfs.BasicFormatMatcher.isReadable(BasicFormatMatcher.java:107)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.store.parquet.ParquetFormatPlugin$ParquetFormatMatcher.isDirReadable(ParquetFormatPlugin.java:232)
 [drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.store.parquet.ParquetFormatPlugin$ParquetFormatMatcher.isReadable(ParquetFormatPlugin.java:212)
 [drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.store.dfs.WorkspaceSchemaFactory.create(WorkspaceSchemaFactory.java:141)
 [drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.store.dfs.WorkspaceSchemaFactory.create(WorkspaceSchemaFactory.java:58)
 [drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.planner.sql.ExpandingConcurrentMap.getNewEntry(ExpandingConcurrentMap.java:96)
 [drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.planner.sql.ExpandingConcurrentMap.get(ExpandingConcurrentMap.java:90)
 [drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.store.dfs.WorkspaceSchemaFactory$WorkspaceSchema.getTable(WorkspaceSchemaFactory.java:273)
 [drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
net.hydromatic.optiq.jdbc.SimpleOptiqSchema.getTable(SimpleOptiqSchema.java:75) 
[optiq-core-0.9-drill-r12.jar:na]
        at 
net.hydromatic.optiq.prepare.OptiqCatalogReader.getTableFrom(OptiqCatalogReader.java:87)
 [optiq-core-0.9-drill-r12.jar:na]
        at 
net.hydromatic.optiq.prepare.OptiqCatalogReader.getTable(OptiqCatalogReader.java:70)
 [optiq-core-0.9-drill-r12.jar:na]
        at 
net.hydromatic.optiq.prepare.OptiqCatalogReader.getTable(OptiqCatalogReader.java:42)
 [optiq-core-0.9-drill-r12.jar:na]
        at 
org.eigenbase.sql.validate.EmptyScope.getTableNamespace(EmptyScope.java:67) 
[optiq-core-0.9-drill-r12.jar:na]
        at 
org.eigenbase.sql.validate.IdentifierNamespace.validateImpl(IdentifierNamespace.java:75)
 [optiq-core-0.9-drill-r12.jar:na]
        at 
org.eigenbase.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:85)
 [optiq-core-0.9-drill-r12.jar:na]
        at 
org.eigenbase.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:779)
 [optiq-core-0.9-drill-r12.jar:na]
        at 
org.eigenbase.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:768)
 [optiq-core-0.9-drill-r12.jar:na]
        at 
org.eigenbase.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:2599)
 [optiq-core-0.9-drill-r12.jar:na]
        at 
org.eigenbase.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:2584)
 [optiq-core-0.9-drill-r12.jar:na]
        at 
org.eigenbase.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:2807)
 [optiq-core-0.9-drill-r12.jar:na]
        at 
org.eigenbase.sql.validate.SelectNamespace.validateImpl(SelectNamespace.java:60)
 [optiq-core-0.9-drill-r12.jar:na]
        at 
org.eigenbase.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:85)
 [optiq-core-0.9-drill-r12.jar:na]
        at 
org.eigenbase.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:779)
 [optiq-core-0.9-drill-r12.jar:na]
        at 
org.eigenbase.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:768)
 [optiq-core-0.9-drill-r12.jar:na]
        at org.eigenbase.sql.SqlSelect.validate(SqlSelect.java:208) 
[optiq-core-0.9-drill-r12.jar:na]
        at 
org.eigenbase.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:742)
 [optiq-core-0.9-drill-r12.jar:na]
        at 
org.eigenbase.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:458) 
[optiq-core-0.9-drill-r12.jar:na]
        at 
net.hydromatic.optiq.prepare.PlannerImpl.validate(PlannerImpl.java:176) 
[optiq-core-0.9-drill-r12.jar:na]
        at 
org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.validateNode(DefaultSqlHandler.java:145)
 [drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.getPlan(DefaultSqlHandler.java:125)
 [drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:145)
 [drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:507) 
[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:185) 
[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.work.WorkManager$RunnableWrapper.run(WorkManager.java:254)
 [drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
[na:1.7.0_71]
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
[na:1.7.0_71]
        at java.lang.Thread.run(Thread.java:745) [na:1.7.0_71]
2015-01-27 02:26:19,500 [2b3908b9-cf08-3fd5-3bd8-ebb6bb5b70f1:frag:1:0] WARN  
o.a.d.e.e.ExpressionTreeMaterializer - Unable to find value vector of path 
`entities`.`hashtags`, returning null instance.
2015-01-27 02:26:19,503 [2b3908b9-cf08-3fd5-3bd8-ebb6bb5b70f1:frag:1:0] WARN  
o.a.d.e.w.fragment.FragmentExecutor - Error while initializing or executing 
fragment
java.lang.ClassCastException: org.apache.drill.exec.vector.NullableIntVector 
cannot be cast to org.apache.drill.exec.vector.RepeatedVector
        at 
org.apache.drill.exec.physical.impl.flatten.FlattenRecordBatch.getFlattenFieldTransferPair(FlattenRecordBatch.java:278)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.flatten.FlattenRecordBatch.setupNewSchema(FlattenRecordBatch.java:304)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:78)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.flatten.FlattenRecordBatch.innerNext(FlattenRecordBatch.java:122)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:99)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:89)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:132)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:67) 
~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.SingleSenderCreator$SingleSenderRootExec.innerNext(SingleSenderCreator.java:97)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:57) 
~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:114)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.work.WorkManager$RunnableWrapper.run(WorkManager.java:254)
 [drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-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]
2015-01-27 02:26:19,503 [2b3908b9-cf08-3fd5-3bd8-ebb6bb5b70f1:frag:1:0] ERROR 
o.a.drill.exec.ops.FragmentContext - Fragment Context received failure.
java.lang.ClassCastException: org.apache.drill.exec.vector.NullableIntVector 
cannot be cast to org.apache.drill.exec.vector.RepeatedVector
        at 
org.apache.drill.exec.physical.impl.flatten.FlattenRecordBatch.getFlattenFieldTransferPair(FlattenRecordBatch.java:278)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.flatten.FlattenRecordBatch.setupNewSchema(FlattenRecordBatch.java:304)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:78)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.flatten.FlattenRecordBatch.innerNext(FlattenRecordBatch.java:122)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:99)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:89)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:132)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:67) 
~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.SingleSenderCreator$SingleSenderRootExec.innerNext(SingleSenderCreator.java:97)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:57) 
~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:114)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.work.WorkManager$RunnableWrapper.run(WorkManager.java:254)
 [drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
[na:1.7.0_71]
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
[na:1.7.0_71]
        at java.lang.Thread.run(Thread.java:745) [na:1.7.0_71]
2015-01-27 02:26:19,504 [2b3908b9-cf08-3fd5-3bd8-ebb6bb5b70f1:frag:1:0] ERROR 
o.a.d.e.w.f.AbstractStatusReporter - Error 
f7698634-d772-41e6-86d8-9d06c36e4bd6: Failure while running fragment.
java.lang.ClassCastException: org.apache.drill.exec.vector.NullableIntVector 
cannot be cast to org.apache.drill.exec.vector.RepeatedVector
        at 
org.apache.drill.exec.physical.impl.flatten.FlattenRecordBatch.getFlattenFieldTransferPair(FlattenRecordBatch.java:278)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.flatten.FlattenRecordBatch.setupNewSchema(FlattenRecordBatch.java:304)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:78)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.flatten.FlattenRecordBatch.innerNext(FlattenRecordBatch.java:122)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:99)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:89)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:132)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:67) 
~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.SingleSenderCreator$SingleSenderRootExec.innerNext(SingleSenderCreator.java:97)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:57) 
~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:114)
 ~[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.work.WorkManager$RunnableWrapper.run(WorkManager.java:254)
 [drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-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]
2015-01-27 02:26:19,586 [BitServer-4] ERROR o.a.drill.exec.work.foreman.Foreman 
- Error 4e311509-1781-4e52-aed3-479995fb1592: Query failed: Failure while 
running fragment., org.apache.drill.exec.vector.NullableIntVector cannot be 
cast to org.apache.drill.exec.vector.RepeatedVector [ 
f7698634-d772-41e6-86d8-9d06c36e4bd6 on drilldemo:31010 ]
[ f7698634-d772-41e6-86d8-9d06c36e4bd6 on drilldemo:31010 ]

org.apache.drill.exec.rpc.RemoteRpcException: Failure while running fragment., 
org.apache.drill.exec.vector.NullableIntVector cannot be cast to 
org.apache.drill.exec.vector.RepeatedVector [ 
f7698634-d772-41e6-86d8-9d06c36e4bd6 on drilldemo:31010 ]
[ f7698634-d772-41e6-86d8-9d06c36e4bd6 on drilldemo:31010 ]
        at 
org.apache.drill.exec.work.foreman.QueryManager.statusUpdate(QueryManager.java:93)
 [drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.rpc.control.WorkEventBus.status(WorkEventBus.java:78) 
[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.work.batch.ControlHandlerImpl.handle(ControlHandlerImpl.java:82)
 [drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.rpc.control.ControlServer.handle(ControlServer.java:60) 
[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.rpc.control.ControlServer.handle(ControlServer.java:38) 
[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at org.apache.drill.exec.rpc.RpcBus.handle(RpcBus.java:58) 
[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:194) 
[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:173) 
[drill-java-exec-0.7.0-SNAPSHOT-rebuffed.jar:0.7.0-SNAPSHOT]
        at 
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89)
 [netty-codec-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
 [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
 [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
 [netty-codec-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
 [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
 [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:161)
 [netty-codec-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
 [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
 [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
 [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
 [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
 [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:787)
 [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:130)
 [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511) 
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
 [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382) 
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354) 
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at 
io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
 [netty-common-4.0.24.Final.jar:4.0.24.Final]
        at java.lang.Thread.run(Thread.java:745) [na:1.7.0_71]
2015-01-27 02:26:19,588 [BitServer-4] ERROR o.a.d.exec.rpc.control.WorkEventBus 
- A fragment message arrived but there was no registered listener for that 
message for handle query_id {
  part1: 3114530211438804949
  part2: 4312455813267157233
}
major_fragment_id: 1
minor_fragment_id: 2
.
2015-01-27 02:26:19,596 [BitServer-4] ERROR o.a.d.exec.rpc.control.WorkEventBus 
- A fragment message arrived but there was no registered listener for that 
message for handle query_id {
  part1: 3114530211438804949
  part2: 4312455813267157233
}
major_fragment_id: 1
minor_fragment_id: 1
.
2015-01-27 02:26:19,611 [BitServer-4] ERROR o.a.d.exec.rpc.control.WorkEventBus 
- A fragment message arrived but there was no registered listener for that 
message for handle query_id {
  part1: 3114530211438804949
  part2: 4312455813267157233
}
major_fragment_id: 1
minor_fragment_id: 2
.
2015-01-27 02:26:19,612 [BitServer-4] ERROR o.a.d.exec.rpc.control.WorkEventBus 
- A fragment message arrived but there was no registered listener for that 
message for handle query_id {
  part1: 3114530211438804949
  part2: 4312455813267157233
}
major_fragment_id: 1
minor_fragment_id: 1
.




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