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From "mortalee (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-15443) There is a table stored as orc format, it contains a column with the type of array<string>.When each cell of this column contains tens of strings, the queries reported ArrayIndexOutOfBoundsException.
Date Fri, 16 Dec 2016 03:32:58 GMT
mortalee created HIVE-15443:
-------------------------------

             Summary: There is a table stored as orc format, it contains a column with the
type of array<string>.When each cell of this column contains tens of strings, the queries
reported ArrayIndexOutOfBoundsException.
                 Key: HIVE-15443
                 URL: https://issues.apache.org/jira/browse/HIVE-15443
             Project: Hive
          Issue Type: Bug
          Components: ORC
    Affects Versions: 2.1.0
         Environment: centos+hive2.1.0+hadoop2.7.2
            Reporter: mortalee


java.lang.Exception: java.io.IOException: java.io.IOException: java.lang.ArrayIndexOutOfBoundsException:
1024
	at org.apache.hadoop.mapred.LocalJobRunner$Job.runTasks(LocalJobRunner.java:462)
	at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:522)
Caused by: java.io.IOException: java.io.IOException: java.lang.ArrayIndexOutOfBoundsException:
1024
	at org.apache.hadoop.hive.io.HiveIOExceptionHandlerChain.handleRecordReaderNextException(HiveIOExceptionHandlerChain.java:121)
	at org.apache.hadoop.hive.io.HiveIOExceptionHandlerUtil.handleRecordReaderNextException(HiveIOExceptionHandlerUtil.java:77)
	at org.apache.hadoop.hive.shims.HadoopShimsSecure$CombineFileRecordReader.doNextWithExceptionHandler(HadoopShimsSecure.java:230)
	at org.apache.hadoop.hive.shims.HadoopShimsSecure$CombineFileRecordReader.next(HadoopShimsSecure.java:140)
	at org.apache.hadoop.mapred.MapTask$TrackedRecordReader.moveToNext(MapTask.java:199)
	at org.apache.hadoop.mapred.MapTask$TrackedRecordReader.next(MapTask.java:185)
	at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:52)
	at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:453)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
	at org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:243)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: java.lang.ArrayIndexOutOfBoundsException: 1024
	at org.apache.hadoop.hive.io.HiveIOExceptionHandlerChain.handleRecordReaderNextException(HiveIOExceptionHandlerChain.java:121)
	at org.apache.hadoop.hive.io.HiveIOExceptionHandlerUtil.handleRecordReaderNextException(HiveIOExceptionHandlerUtil.java:77)
	at org.apache.hadoop.hive.ql.io.HiveContextAwareRecordReader.doNext(HiveContextAwareRecordReader.java:355)
	at org.apache.hadoop.hive.ql.io.CombineHiveRecordReader.doNext(CombineHiveRecordReader.java:106)
	at org.apache.hadoop.hive.ql.io.CombineHiveRecordReader.doNext(CombineHiveRecordReader.java:42)
	at org.apache.hadoop.hive.ql.io.HiveContextAwareRecordReader.next(HiveContextAwareRecordReader.java:116)
	at org.apache.hadoop.hive.shims.HadoopShimsSecure$CombineFileRecordReader.doNextWithExceptionHandler(HadoopShimsSecure.java:228)
	... 12 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1024
	at org.apache.orc.impl.RunLengthIntegerReaderV2.nextVector(RunLengthIntegerReaderV2.java:369)
	at org.apache.orc.impl.TreeReaderFactory$BytesColumnVectorUtil.commonReadByteArrays(TreeReaderFactory.java:1231)
	at org.apache.orc.impl.TreeReaderFactory$BytesColumnVectorUtil.readOrcByteArrays(TreeReaderFactory.java:1268)
	at org.apache.orc.impl.TreeReaderFactory$StringDirectTreeReader.nextVector(TreeReaderFactory.java:1368)
	at org.apache.orc.impl.TreeReaderFactory$StringTreeReader.nextVector(TreeReaderFactory.java:1212)
	at org.apache.orc.impl.TreeReaderFactory$ListTreeReader.nextVector(TreeReaderFactory.java:1902)
	at org.apache.orc.impl.TreeReaderFactory$StructTreeReader.nextBatch(TreeReaderFactory.java:1737)
	at org.apache.orc.impl.RecordReaderImpl.nextBatch(RecordReaderImpl.java:1045)
	at org.apache.hadoop.hive.ql.io.orc.RecordReaderImpl.ensureBatch(RecordReaderImpl.java:77)
	at org.apache.hadoop.hive.ql.io.orc.RecordReaderImpl.hasNext(RecordReaderImpl.java:89)
	at org.apache.hadoop.hive.ql.io.orc.OrcInputFormat$OrcRecordReader.next(OrcInputFormat.java:230)
	at org.apache.hadoop.hive.ql.io.orc.OrcInputFormat$OrcRecordReader.next(OrcInputFormat.java:205)
	at org.apache.hadoop.hive.ql.io.HiveContextAwareRecordReader.doNext(HiveContextAwareRecordReader.java:350)
	... 16 more

The reason I found is 
org.apache.orc.impl.TreeReaderFactory$StringDirectTreeReader's 
private final LongColumnVector scratchlcv is defined with the default length 1024, but before
reading data, scratchlcv.ensureSize is missing.

ps:
create table test_orc_array(names array<string>) stored as orc;
select names from test_orc_array group by names limit 10;



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