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https://issues.apache.org/jira/browse/HIVE-16251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15933831#comment-15933831
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Ashutosh Chauhan commented on HIVE-16251:
-----------------------------------------
+1
> Vectorization: new octet_length function (HIVE-15979) get NPE
> -------------------------------------------------------------
>
> Key: HIVE-16251
> URL: https://issues.apache.org/jira/browse/HIVE-16251
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Reporter: Matt McCline
> Assignee: Teddy Choi
> Priority: Critical
> Attachments: HIVE-16251.1.patch
>
>
> Stack trace:
> {code}
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.hive.ql.exec.vector.expressions.OctetLength.evaluate(OctetLength.java:53)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at
> org.apache.hadoop.hive.ql.exec.vector.VectorSelectOperator.process(VectorSelectOperator.java:125)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:897)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at
> org.apache.hadoop.hive.ql.exec.TableScanOperator.process(TableScanOperator.java:130)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at
> org.apache.hadoop.hive.ql.exec.vector.VectorMapOperator.closeOp(VectorMapOperator.java:900)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:697)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at
> org.apache.hadoop.hive.ql.exec.mr.ExecMapper.close(ExecMapper.java:189)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:61)
> ~[hadoop-mapreduce-client-core-2.7.2.jar:?]
> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:453)
> ~[hadoop-mapreduce-client-core-2.7.2.jar:?]
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
> ~[hadoop-mapreduce-client-core-2.7.2.jar:?]
> at
> org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:243)
> ~[hadoop-mapreduce-client-common-2.7.2.jar:?]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> ~[?:1.8.0_91]
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> ~[?:1.8.0_91]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> ~[?:1.8.0_91]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> ~[?:1.8.0_91]
> at java.lang.Thread.run(Thread.java:745) ~[?:1.8.0_91]
> {code}
> I think it is the use of transient:
> {code}
> private transient int colNum;
> private transient int outputColumn;
> {code}
> Transient columns lose their value when serialized from plan to execution.
> On execution both are 0. Not sure why tests didn't fail.
> CC: [~ashutoshc]
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