Question

我试图在Spark上运行我的Access Hive表当前使用的CDH5.4和蜂巢版本是1.1和Spark是1.6 我已经将hive-site.xml文件复制到spark conf文件夹。如果我试图在以下代码下运行，则显示错误。

我正在尝试获取HiveContext，以便可以在Spark Shell中访问Hive表

 import org.apache.spark.SparkConf
 import org.apache.spark.SparkContext
 import org.apache.spark.sql.hive.HiveContext

 val sparkConf = new SparkConf().setAppName("WordCount")
 val sqlContext = new org.apache.spark.sql.hive.HiveContext(sc)

在以下行出现错误：-

scala> val sqlContext = new org.apache.spark.sql.hive.HiveContext(sc)

java.lang.NoClassDefFoundError: org/apache/hadoop/hive/conf/HiveVariableSource
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:33)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:38)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:40)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:42)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:44)
    at $iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:46)
    at $iwC$$iwC$$iwC$$iwC.<init>(<console>:48)
    at $iwC$$iwC$$iwC.<init>(<console>:50)
    at $iwC$$iwC.<init>(<console>:52)
    at $iwC.<init>(<console>:54)
    at <init>(<console>:56)
    at .<init>(<console>:60)
    at .<clinit>(<console>)
    at .<init>(<console>:7)
    at .<clinit>(<console>)
    at $print(<console>)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.apache.spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:1045)
    at org.apache.spark.repl.SparkIMain$Request.loadAndRun(SparkIMain.scala:1326)
    at org.apache.spark.repl.SparkIMain.loadAndRunReq$1(SparkIMain.scala:821)
    at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:852)
    at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:800)
    at org.apache.spark.repl.SparkILoop.reallyInterpret$1(SparkILoop.scala:857)
    at org.apache.spark.repl.SparkILoop.interpretStartingWith(SparkILoop.scala:902)
    at org.apache.spark.repl.SparkILoop.command(SparkILoop.scala:814)
    at org.apache.spark.repl.SparkILoop.processLine$1(SparkILoop.scala:657)
    at org.apache.spark.repl.SparkILoop.innerLoop$1(SparkILoop.scala:665)
    at org.apache.spark.repl.SparkILoop.org$apache$spark$repl$SparkILoop$$loop(SparkILoop.scala:670)
    at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply$mcZ$sp(SparkILoop.scala:997)
    at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply(SparkILoop.scala:945)
    at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply(SparkILoop.scala:945)
    at scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:135)
    at org.apache.spark.repl.SparkILoop.org$apache$spark$repl$SparkILoop$$process(SparkILoop.scala:945)
    at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:1064)
    at org.apache.spark.repl.Main$.main(Main.scala:35)
    at org.apache.spark.repl.Main.main(Main.scala)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:730)
    at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:181)
    at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:206)
    at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:121)
    at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.hive.conf.HiveVariableSource

以下基于对HADOOP_CLASSPATH的回复进行了更新

我正在使用CDH 5.4，好像没有设置HADOOP_CLASSPATH

cloudera@quickstart ~]$ echo "Classpath=$HADOOP_CLASSPATH" 
  Classpath=

但是在classpath下面给了我一些输出。我需要我的HADOOP_CLASSPATH或它的罚款吗？

   cloudera@quickstart ~]$ hadoop classpath 

/etc/hadoop/conf:/usr/lib/hadoop/lib/*:/usr/lib/hadoop/.//*:/usr/lib/hadoop-hdfs/./:/usr/lib/hadoop-hdfs/lib/*:/usr/lib/hadoop-hdfs/.//*:/usr/lib/hadoop-yarn/lib/*:/usr/lib/hadoop-yarn/.//*:/usr/lib/hadoop-mapreduce/lib/*:/usr/lib/hadoop-mapreduce/.//*

Answer 1

尝试一下

Val SC = SparkContext.getOrCreate（sparkConf）然后使用您的代码创建hivecontext

scala> val sqlContext = new HiveContext（sc）java.lang.NoClassDefFoundError：org / apache / hadoop / hive / conf / HiveVariableSource

1 个答案: