Hi,
Does Hortonworks recommend hive queries which where previously running on tez to be changed to run on spark engine? What are the draawbacks? How beneficial it is, if it is? I just tried to simple select query on a table after setting I am gettibg following error:
java.lang.NoClassDefFoundError: org/apache/spark/SparkConf
at org.apache.hadoop.hive.ql.exec.spark.HiveSparkClientFactory.generateSparkConf(HiveSparkClientFactory.java:160)
at org.apache.hadoop.hive.ql.exec.spark.RemoteHiveSparkClient.<init>(RemoteHiveSparkClient.java:89)
at org.apache.hadoop.hive.ql.exec.spark.HiveSparkClientFactory.createHiveSparkClient(HiveSparkClientFactory.java:65)
at org.apache.hadoop.hive.ql.exec.spark.session.SparkSessionImpl.open(SparkSessionImpl.java:55)
at org.apache.hadoop.hive.ql.exec.spark.session.SparkSessionManagerImpl.getSession(SparkSessionManagerImpl.java:117)
at org.apache.hadoop.hive.ql.exec.spark.SparkUtilities.getSparkSession(SparkUtilities.java:112)
at org.apache.hadoop.hive.ql.exec.spark.SparkTask.execute(SparkTask.java:101)
at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:160)
at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:89)
at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1745)
at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1491)
at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1289)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1156)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1146)
at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:217)
at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:169)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:380)
at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:740)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:685)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:625)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.util.RunJar.run(RunJar.java:233)
at org.apache.hadoop.util.RunJar.main(RunJar.java:148)
Caused by: java.lang.ClassNotFoundException: org.apache.spark.SparkConf
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 26 more
FAILED: Execution Error, return code -101 from org.apache.hadoop.hive.ql.exec.spark.SparkTask. org/apache/spark/SparkConf
