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https://issues.apache.org/jira/browse/DRILL-2745?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jason Altekruse resolved DRILL-2745.
------------------------------------
Resolution: Not A Problem
> Query returns IOB Exception when JSON data with empty arrays is input to
> flatten function
> -----------------------------------------------------------------------------------------
>
> Key: DRILL-2745
> URL: https://issues.apache.org/jira/browse/DRILL-2745
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Relational Operators
> Affects Versions: 0.9.0
> Environment: | 9d92b8e319f2d46e8659d903d355450e15946533 | DRILL-2580:
> Exit early from HashJoinBatch if build side is empty | 26.03.2015 @ 16:13:53
> EDT
> Reporter: Khurram Faraaz
> Assignee: Khurram Faraaz
> Fix For: 1.2.0
>
>
> IOB Exception is returned when JSON file that has many empty arrays and
> arrays with different types of data is passed to flatten function.
> Tested on 4 node cluster on CentOS
> {code}
> 0: jdbc:drill:> select flatten(outkey) from `nestedJArry.json` ;
> Query failed: RemoteRpcException: Failure while running fragment., index:
> 176, length: 4 (expected: range(0, 176)) [
> 2627cf84-9dfb-4077-8531-9955ecdbdec7 on centos-02.qa.lab:31010 ]
> [ 2627cf84-9dfb-4077-8531-9955ecdbdec7 on centos-02.qa.lab:31010 ]
> Error: exception while executing query: Failure while executing query.
> (state=,code=0)
> 0: jdbc:drill:> select outkey from `nestedJArry.json`;
> +------------+
> | outkey |
> +------------+
> |
> [["1000000","10000000","2000000","999999","1","0","-1","100000"],["a","b","c","d","e","p","o","f","m","q","d","s","v"],["2012-04-01","1998-02-20","2011-08-05","1992-01-01"],["10:30:29.123","12:29:21.999"],["sdfklgjsdlkjfghlsidhfgopiuesrtoipuertoiurtyoiurotuiydkfjlbn,bfn;waokefpqowertoipuwergklnjdfbpdsiofgoigiuewqrqiugkjehgjksdhbvkjshdfkjsdfbnlkfbkljrghljrelkhbdlkfjbgkdfjbgkndfbnkldfgklbhjdflkghjlnkoiurty984756897345609782-3458745uiyoheirluht7895e6y"],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],["null"],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],["test
> string","hello world!","just do it!","houston we have a
> problem"],["1","2","3","4","5","6","7","8","9","0"]] |
> +------------+
> 1 row selected (0.088 seconds)
> Stack trace from drillbit.log
> 2015-04-09 23:54:41,965 [2ad8eebd-adb6-6f7e-469e-4bb8ca276984:frag:0:0] WARN
> o.a.d.e.w.fragment.FragmentExecutor - Error while initializing or executing
> fragment
> java.lang.IndexOutOfBoundsException: index: 176, length: 4 (expected:
> range(0, 176))
> at io.netty.buffer.DrillBuf.checkIndexD(DrillBuf.java:187)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:4.0.24.Final]
> at io.netty.buffer.DrillBuf.chk(DrillBuf.java:209)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:4.0.24.Final]
> at io.netty.buffer.DrillBuf.setInt(DrillBuf.java:513)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:4.0.24.Final]
> at
> org.apache.drill.exec.vector.UInt4Vector$Mutator.set(UInt4Vector.java:363)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.vector.RepeatedVarCharVector.splitAndTransferTo(RepeatedVarCharVector.java:173)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.vector.RepeatedVarCharVector$TransferImpl.splitAndTransfer(RepeatedVarCharVector.java:200)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.test.generated.FlattenerGen1107.flattenRecords(FlattenTemplate.java:106)
> ~[na:na]
> at
> org.apache.drill.exec.physical.impl.flatten.FlattenRecordBatch.doWork(FlattenRecordBatch.java:156)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:93)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.flatten.FlattenRecordBatch.innerNext(FlattenRecordBatch.java:122)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:99)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:89)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:134)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:68)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.innerNext(ScreenCreator.java:96)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:58)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:163)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38)
> [drill-common-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> [na:1.7.0_75]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> [na:1.7.0_75]
> at java.lang.Thread.run(Thread.java:745) [na:1.7.0_75]
> {code}
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