报错：
Caused by: java.io.IOException: org.apache.hadoop.hive.ql.metadata.HiveException: Unable to close OrcFileMergeOperator

java.lang.RuntimeException: org.apache.hadoop.hive.ql.metadata.HiveException: Failed to close AbstractFileMergeOperator
at org.apache.hadoop.hive.ql.exec.spark.SparkMergeFileRecordHandler.close(SparkMergeFileRecordHandler.java:125)
at org.apache.hadoop.hive.ql.exec.spark.HiveMapFunctionResultList.closeRecordProcessor(HiveMapFunctionResultList.java:58)
at org.apache.hadoop.hive.ql.exec.spark.HiveBaseFunctionResultList$ResultIterator.hasNext(HiveBaseFunctionResultList.java:106)
at scala.collection.convert.Wrappers$JIteratorWrapper.hasNext(Wrappers.scala:41)
at scala.collection.Iterator$class.foreach(Iterator.scala:727)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
at org.apache.spark.rdd.AsyncRDDActions$$anonfun$foreachAsync$1$$anonfun$apply$15.apply(AsyncRDDActions.scala:118)
at org.apache.spark.rdd.AsyncRDDActions$$anonfun$foreachAsync$1$$anonfun$apply$15.apply(AsyncRDDActions.scala:118)
at org.apache.spark.SparkContext$$anonfun$37.apply(SparkContext.scala:1986)
at org.apache.spark.SparkContext$$anonfun$37.apply(SparkContext.scala:1986)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:66)
at org.apache.spark.scheduler.Task.run(Task.scala:88)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:214)
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: org.apache.hadoop.hive.ql.metadata.HiveException: Failed to close AbstractFileMergeOperator
at org.apache.hadoop.hive.ql.exec.AbstractFileMergeOperator.closeOp(AbstractFileMergeOperator.java:232)
at org.apache.hadoop.hive.ql.exec.OrcFileMergeOperator.closeOp(OrcFileMergeOperator.java:222)
at org.apache.hadoop.hive.ql.exec.spark.SparkMergeFileRecordHandler.close(SparkMergeFileRecordHandler.java:123)
... 15 more
Caused by: java.io.IOException: Unable to rename hdfs://nameservice1/user/hive/warehouse/.hive-staging_hive_2017-06-21_11-21-04_632_816300445473359164-6252/_task_tmp.-ext-10001/_tmp.000000_0 to hdfs://nameservice1/user/hive/warehouse/.hive-staging_hive_2017-06-21_11-21-04_632_816300445473359164-6252/_tmp.-ext-10001/000000_0
at org.apache.hadoop.hive.ql.exec.AbstractFileMergeOperator.closeOp(AbstractFileMergeOperator.java:205)
... 17 more

解决方法：
set hive.merge.sparkfiles=false