Hi, in an already working Spark - Hive environment with Spark 1.6 and Hive 1.2.1, with Hive metastore configured on Postgres DB, I have upgraded Spark to the 2.0.0.
I have started the thrift server on YARN, then tried to execute from the beeline cli or a jdbc client the following command: SHOW DATABASES; It always gives this error on Spark server side: spark@spark-test[spark] /home/spark> beeline -u jdbc:hive2://$(hostname):10000 -n spark Connecting to jdbc:hive2://spark-test:10000 16/09/05 17:41:43 INFO jdbc.Utils: Supplied authorities: spark-test:10000 16/09/05 17:41:43 INFO jdbc.Utils: Resolved authority: spark-test:10000 16/09/05 17:41:43 INFO jdbc.HiveConnection: Will try to open client transport with JDBC Uri: jdbc:hive2:// spark-test:10000 Connected to: Spark SQL (version 2.0.0) Driver: Hive JDBC (version 1.2.1.spark2) Transaction isolation: TRANSACTION_REPEATABLE_READ Beeline version 1.2.1.spark2 by Apache Hive 0: jdbc:hive2:// spark-test:10000> show databases; java.lang.IllegalStateException: Can't overwrite cause with java.lang.ClassCastException: org.apache.spark.sql.catalyst.expressions.GenericInternalRow cannot be cast to org.apache.spark.sql.catalyst.expressions.UnsafeRow at java.lang.Throwable.initCause(Throwable.java:457) at org.apache.hive.service.cli.HiveSQLException.toStackTrace(HiveSQLException.java:236) at org.apache.hive.service.cli.HiveSQLException.toStackTrace(HiveSQLException.java:236) at org.apache.hive.service.cli.HiveSQLException.toCause(HiveSQLException.java:197) at org.apache.hive.service.cli.HiveSQLException.<init>(HiveSQLException.java:108) at org.apache.hive.jdbc.Utils.verifySuccess(Utils.java:256) at org.apache.hive.jdbc.Utils.verifySuccessWithInfo(Utils.java:242) at org.apache.hive.jdbc.HiveQueryResultSet.next(HiveQueryResultSet.java:365) at org.apache.hive.beeline.BufferedRows.<init>(BufferedRows.java:42) at org.apache.hive.beeline.BeeLine.print(BeeLine.java:1794) at org.apache.hive.beeline.Commands.execute(Commands.java:860) at org.apache.hive.beeline.Commands.sql(Commands.java:713) at org.apache.hive.beeline.BeeLine.dispatch(BeeLine.java:973) at org.apache.hive.beeline.BeeLine.execute(BeeLine.java:813) at org.apache.hive.beeline.BeeLine.begin(BeeLine.java:771) at org.apache.hive.beeline.BeeLine.mainWithInputRedirection(BeeLine.java:484) at org.apache.hive.beeline.BeeLine.main(BeeLine.java:467) Caused by: org.apache.spark.SparkException: Job aborted due to stage failure: Task 0 in stage 3.0 failed 10 times, most recent failure: Lost task 0.9 in stage 3.0 (TID 12, vertica204): java.lang.ClassCastException: org.apache.spark.sql.catalyst.expressions.GenericInternalRow cannot be cast to org.apache.spark.sql.catalyst.expressions.UnsafeRow at org.apache.spark.sql.execution.SparkPlan$$anonfun$4.apply(SparkPlan.scala:247) at org.apache.spark.sql.execution.SparkPlan$$anonfun$4.apply(SparkPlan.scala:240) at org.apache.spark.rdd.RDD$$anonfun$mapPartitionsInternal$1$$anonfun$apply$24.apply(RDD.scala:784) at org.apache.spark.rdd.RDD$$anonfun$mapPartitionsInternal$1$$anonfun$apply$24.apply(RDD.scala:784) at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38) at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:319) at org.apache.spark.rdd.RDD.iterator(RDD.scala:283) at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:70) at org.apache.spark.scheduler.Task.run(Task.scala:85) at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:274) 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) Driver stacktrace: at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:422) at org.apache.hive.service.cli.HiveSQLException.newInstance(HiveSQLException.java:244) at org.apache.hive.service.cli.HiveSQLException.toStackTrace(HiveSQLException.java:210) ... 15 more Error: Error retrieving next row (state=,code=0) The same command works when using Spark 1.6, is it a possible issue? Thanks!