java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/HBaseConfiguration

用sbt打包Spark程序，并未将所有依赖都打入包中，把Spark应用放到集群中运行时，出现异常：

Exception in thread “main” java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/HBaseConfiguration

at SparkHbase.main(SparkHbase.scala:34)atSparkHbase.main(SparkHbase.scala)atsun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)atsun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)atsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)atjava.lang.reflect.Method.invoke(Method.java:606)atorg.apache.spark.deploy.SparkSubmit.orgapachesparkdeploySparkSubmit$$runMain(SparkSubmit.scala:569)

at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:166)

at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:189)

at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:110)

at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)

Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.hbase.HBaseConfiguration

at java.net.URLClassLoader$1.run(URLClassLoader.java:366)

at java.net.URLClassLoader$1.run(URLClassLoader.java:355)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:354)

at java.lang.ClassLoader.loadClass(ClassLoader.java:425)

at java.lang.ClassLoader.loadClass(ClassLoader.java:358)

… 11 more

出现该异常的原因是Spark应用缺少hbase依赖，我这里的做法是在集群的spark/conf/spark-env.sh中添加下文：

export SPARK_CLASSPATH=/home/hadoop/SW/hbase/lib/hbase-client-0.98.12-hadoop2.jar:/home/hadoop/SW/hbase/lib/hbase-server-0.98.12-hadoop2.jar:/home/hadoop/SW/hbase/lib/hbase-common-0.98.12-hadoop2.jar:/home/hadoop/SW/hbase/lib/hbase-protocol-0.98.12-hadoop2.jar:/home/hadoop/SW/hbase/lib/htrace-core-2.04.jar:/home/hadoop/SW/hbase/lib/hbase-hadoop2-compat-0.98.12-hadoop2.jar:/home/hadoop/SW/hbase/lib/hbase-it-0.98.12-hadoop2.jar:/home/hadoop/SW/hbase/lib/guava-12.0.1.jar

切记注意每个jar包之间用冒号分隔！然后执行命令：

source spark-env.sh

并重启一下spark服务，就ok了！

其实还有一个方法，就是在你提交应用时增加–driver-class-path配置参数来设置driver的classpath：

./spark-submit –driver-class-path /home/hadoop/SW/hbase/lib/hbase-client-0.98.12-hadoop2.jar:/home/hadoop/SW/hbase/lib/hbase-server-0.98.12-hadoop2.jar:/home/hadoop/SW/hbase/lib/hbase-common-0.98.12-hadoop2.jar:/home/hadoop/SW/hbase/lib/hbase-protocol-0.98.12-hadoop2.jar:/home/hadoop/SW/hbase/lib/htrace-core-2.04.jar:/home/hadoop/SW/hbase/lib/hbase-hadoop2-compat-0.98.12-hadoop2.jar:/home/hadoop/SW/hbase/lib/hbase-it-0.98.12-hadoop2.jar:/home/hadoop/SW/hbase/lib/guava-12.0.1.jar –class com.dtxy.data.SqlTest ../lib/bigdata-1.0-SNAPSHOT.jar

注：不能同时在spark/conf/spark-env.sh里面配置SPARK_CLASSPATH又在提交作业加上–driver-class-path参数，否则会出现异常：

15/08/14 09:22:23 ERROR SparkContext: Error initializing SparkContext.

org.apache.spark.SparkException: Found both spark.driver.extraClassPath and SPARK_CLASSPATH. Use only the former.

at org.apache.spark.SparkConfanonfun$validateSettings$6anonfunapply8.apply(SparkConf.scala:444)

at org.apache.spark.SparkConfanonfun$validateSettings$6anonfunapply8.apply(SparkConf.scala:442)

at scala.collection.immutable.List.foreach(List.scala:318)

at org.apache.spark.SparkConfanonfun$validateSettings$6.apply(SparkConf.scala:442)atorg.apache.spark.SparkConfanonfunvalidateSettings6.apply(SparkConf.scala:430)

at scala.Option.foreach(Option.scala:236)

at org.apache.spark.SparkConf.validateSettings(SparkConf.scala:430)

at org.apache.spark.SparkContext.(SparkContext.scala:365)

at com.dtxy.data.SqlTest.main(SqlTest.scala:27)atcom.dtxy.data.SqlTest.main(SqlTest.scala)atsun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)atsun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)atsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)atjava.lang.reflect.Method.invoke(Method.java:606)atorg.apache.spark.deploy.SparkSubmit.orgapachesparkdeploySparkSubmitrunMain(SparkSubmit.scala:664)atorg.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:169)atorg.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:192)atorg.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:111)atorg.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)15/08/1409:22:23INFOSparkContext:SuccessfullystoppedSparkContextExceptioninthread“main”org.apache.spark.SparkException:Foundbothspark.driver.extraClassPathandSPARKCLASSPATH.Useonlytheformer.atorg.apache.spark.SparkConfanonfunvalidateSettings6anonfun$apply$8.apply(SparkConf.scala:444)atorg.apache.spark.SparkConfanonfunvalidateSettings6anonfun$apply$8.apply(SparkConf.scala:442)atscala.collection.immutable.List.foreach(List.scala:318)atorg.apache.spark.SparkConfanonfunvalidateSettings6.apply(SparkConf.scala:442)
at org.apache.spark.SparkConfanonfun$validateSettings$6.apply(SparkConf.scala:430)atscala.Option.foreach(Option.scala:236)atorg.apache.spark.SparkConf.validateSettings(SparkConf.scala:430)atorg.apache.spark.SparkContext.(SparkContext.scala:365)atcom.dtxy.data.SqlTest$.main(SqlTest.scala:27)atcom.dtxy.data.SqlTest.main(SqlTest.scala)atsun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)atsun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)atsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)atjava.lang.reflect.Method.invoke(Method.java:606)atorg.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmitrunMain(SparkSubmit.scala:664)

at org.apache.spark.deploy.SparkSubmit.doRunMain1(SparkSubmit.scala:169)

at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:192)atorg.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala:111)

at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)

15/08/14 09:22:23 INFO Utils: Shutdown hook called

到此为止，问题解决！

参考来源：http://www.abcn.net/2014/07/lighting-spark-with-hbase-full-edition.html