Spark-HBase集成错误之 java.lang.NoClassDefFoundError: org/htrace/Trace

在进行Spark与HBase 集成的过程中遇到以下问题：

java.lang.IllegalArgumentException: Error while instantiating 'org.apache.spark.sql.hive.HiveSessionStateBuilder':
  at org.apache.spark.sql.SparkSession$.org$apache$spark$sql$SparkSession$$instantiateSessionState(SparkSession.scala:1053)
  at org.apache.spark.sql.SparkSession$$anonfun$sessionState$2.apply(SparkSession.scala:130)
  at org.apache.spark.sql.SparkSession$$anonfun$sessionState$2.apply(SparkSession.scala:130)
  at scala.Option.getOrElse(Option.scala:121)
  at org.apache.spark.sql.SparkSession.sessionState$lzycompute(SparkSession.scala:129)
  at org.apache.spark.sql.SparkSession.sessionState(SparkSession.scala:126)
  at org.apache.spark.sql.SparkSession$Builder$$anonfun$getOrCreate$5.apply(SparkSession.scala:938)
  at org.apache.spark.sql.SparkSession$Builder$$anonfun$getOrCreate$5.apply(SparkSession.scala:938)
  at scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:99)
  at scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:99)
  at scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:230)
  at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:40)
  at scala.collection.mutable.HashMap.foreach(HashMap.scala:99)
  at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:938)
  at org.apache.spark.repl.Main$.createSparkSession(Main.scala:97)
  ... 47 elided
Caused by: java.lang.ClassNotFoundException: java.lang.NoClassDefFoundError: org/htrace/Trace when creating Hive client using classpath:......

Please make sure that jars for your version of hive and hadoop are included in the paths passed to spark.sql.hive.metastore.jars.
  at org.apache.spark.sql.hive.client.IsolatedClientLoader.createClient(IsolatedClientLoader.scala:270)
  at org.apache.spark.sql.hive.HiveUtils$.newClientForMetadata(HiveUtils.scala:362)
  at org.apache.spark.sql.hive.HiveUtils$.newClientForMetadata(HiveUtils.scala:266)
  at org.apache.spark.sql.hive.HiveExternalCatalog.client$lzycompute(HiveExternalCatalog.scala:66)
  at org.apache.spark.sql.hive.HiveExternalCatalog.client(HiveExternalCatalog.scala:65)
  at org.apache.spark.sql.hive.HiveExternalCatalog$$anonfun$databaseExists$1.apply$mcZ$sp(HiveExternalCatalog.scala:194)
  at org.apache.spark.sql.hive.HiveExternalCatalog$$anonfun$databaseExists$1.apply(HiveExternalCatalog.scala:194)
  at org.apache.spark.sql.hive.HiveExternalCatalog$$anonfun$databaseExists$1.apply(HiveExternalCatalog.scala:194)
  at org.apache.spark.sql.hive.HiveExternalCatalog.withClient(HiveExternalCatalog.scala:97)
  at org.apache.spark.sql.hive.HiveExternalCatalog.databaseExists(HiveExternalCatalog.scala:193)
  at org.apache.spark.sql.internal.SharedState.externalCatalog$lzycompute(SharedState.scala:105)
  at org.apache.spark.sql.internal.SharedState.externalCatalog(SharedState.scala:93)
  at org.apache.spark.sql.hive.HiveSessionStateBuilder.externalCatalog(HiveSessionStateBuilder.scala:39)
  at org.apache.spark.sql.hive.HiveSessionStateBuilder.catalog$lzycompute(HiveSessionStateBuilder.scala:54)
  at org.apache.spark.sql.hive.HiveSessionStateBuilder.catalog(HiveSessionStateBuilder.scala:52)
  at org.apache.spark.sql.hive.HiveSessionStateBuilder.catalog(HiveSessionStateBuilder.scala:35)
  at org.apache.spark.sql.internal.BaseSessionStateBuilder.build(BaseSessionStateBuilder.scala:289)
  at org.apache.spark.sql.SparkSession$.org$apache$spark$sql$SparkSession$$instantiateSessionState(SparkSession.scala:1050)
  ... 61 more
Caused by: java.lang.reflect.InvocationTargetException: java.lang.NoClassDefFoundError: org/htrace/Trace
  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.spark.sql.hive.client.IsolatedClientLoader.createClient(IsolatedClientLoader.scala:264)
  ... 78 more
Caused by: java.lang.NoClassDefFoundError: org/htrace/Trace
  at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:214)
  at com.sun.proxy.$Proxy17.getFileInfo(Unknown Source)
  at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:752)
  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:497)
  at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)
  at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
  at com.sun.proxy.$Proxy18.getFileInfo(Unknown Source)
  at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1977)
  at org.apache.hadoop.hdfs.DistributedFileSystem$18.doCall(DistributedFileSystem.java:1118)
  at org.apache.hadoop.hdfs.DistributedFileSystem$18.doCall(DistributedFileSystem.java:1114)
  at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
  at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1114)
  at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1400)
  at org.apache.hadoop.hive.ql.session.SessionState.createRootHDFSDir(SessionState.java:596)
  at org.apache.hadoop.hive.ql.session.SessionState.createSessionDirs(SessionState.java:554)
  at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:508)
  at org.apache.spark.sql.hive.client.HiveClientImpl.<init>(HiveClientImpl.scala:191)
  ... 83 more
Caused by: java.lang.ClassNotFoundException: org.htrace.Trace
  at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
  at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
  ... 103 more
<console>:14: error: not found: value spark
       import spark.implicits._
              ^
<console>:14: error: not found: value spark
       import spark.sql
              ^
Welcome to
      ____              __
     / __/__  ___ _____/ /__
    _\ \/ _ \/ _ `/ __/  '_/
   /___/ .__/\_,_/_/ /_/\_\   version 2.2.0
      /_/
         
Using Scala version 2.11.8 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_60)
Type in expressions to have them evaluated.
Type :help for more information.

scala>

 

我事先已经将所需要的jar支持包全部拷贝到了各节点下的spark路径下的jar目录，但是在启动bin/spark-shell时总是报以上错误。在网上也看来很多解决方法，比如将缺失的jar包 ：hbase/lib 下 hbase*.jar,metrics*.jar.htrace*.jar  等拷贝到spark/jar目录，但这不正是我的启动准备工作吗，等于没说！

从故障根源分析，造成此错误的原因在于Spark启动的时候无法正常从我们的jar目录加载到它所需要的jar包（此处表现为/htrace-core-3.0.4.jar包）。所以，直接将包添加到jar目录是无法解决此问题的，而我们需要做的是给它指明CLASSPATH路径，在它不能找到所需要的jar包时就可以从此路径寻找。

解决办法：

在spark/conf目录下的spark-env.sh配置文件添加以下配置内容

export HBASE_CLASSPATH='hbase classpath'
export HADOOP_CLASSPATH='hadoop classpath'
export HADOOP_CLASSPATH=$HADOOP_CLASSPATH:$HBASE_CLASSPATH

 

---

以上就是博主为大家介绍的这一板块的主要内容，这都是博主自己的学习过程，希望能给大家带来一定的指导作用，有用的还望大家点个支持，如果对你没用也望包涵，有错误烦请指出。如有期待可关注博主以第一时间获取更新哦，谢谢！同时也欢迎转载，但必须在博文明显位置标注原文地址，解释权归博主所有！