Jimmy Xiang created HIVE-10009:
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Summary: LazyObjectInspectorFactory is not thread safe [Spark
Branch]
Key: HIVE-10009
URL: https://issues.apache.org/jira/browse/HIVE-10009
Project: Hive
Issue Type: Bug
Reporter: Jimmy Xiang
Assignee: Jimmy Xiang
LazyObjectInspectorFactory is not thread safe, which causes random failures in
multiple thread environment such as Hive on Spark. We got exceptions like below
{noformat}
java.lang.RuntimeException: Map operator initialization failed:
java.lang.ClassCastException:
org.apache.hadoop.hive.serde2.lazy.objectinspector.LazySimpleStructObjectInspector
cannot be cast to
org.apache.hadoop.hive.serde2.objectinspector.SettableStructObjectInspector
at
org.apache.hadoop.hive.ql.exec.spark.SparkMapRecordHandler.init(SparkMapRecordHandler.java:127)
at
org.apache.hadoop.hive.ql.exec.spark.HiveMapFunction.call(HiveMapFunction.java:55)
at
org.apache.hadoop.hive.ql.exec.spark.HiveMapFunction.call(HiveMapFunction.java:30)
at
org.apache.spark.api.java.JavaRDDLike$$anonfun$fn$7$1.apply(JavaRDDLike.scala:170)
at
org.apache.spark.api.java.JavaRDDLike$$anonfun$fn$7$1.apply(JavaRDDLike.scala:170)
at org.apache.spark.rdd.RDD$$anonfun$14.apply(RDD.scala:634)
at org.apache.spark.rdd.RDD$$anonfun$14.apply(RDD.scala:634)
at
org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:35)
at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:277)
at org.apache.spark.rdd.RDD.iterator(RDD.scala:244)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
at org.apache.spark.scheduler.Task.run(Task.scala:64)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:203)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassCastException:
org.apache.hadoop.hive.serde2.lazy.objectinspector.LazySimpleStructObjectInspector
cannot be cast to
org.apache.hadoop.hive.serde2.objectinspector.SettableStructObjectInspector
at
org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorConverters.getConverter(ObjectInspectorConverters.java:154)
at
org.apache.hadoop.hive.ql.exec.MapOperator.initObjectInspector(MapOperator.java:199)
at
org.apache.hadoop.hive.ql.exec.MapOperator.setChildren(MapOperator.java:355)
at
org.apache.hadoop.hive.ql.exec.spark.SparkMapRecordHandler.init(SparkMapRecordHandler.java:92)
... 16 more
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