Hadoop 2.4:java.lang.NoClassDefFoundError:org / apache / hcatalog / mapreduce / InputJobInfo

2020年12月2日 60点热度 0条评论

我已经从Hortonworks升级到了最新的Hadoop:

Hadoop 2.4.0.2.1.2.1-471
Subversion git@github.com:hortonworks/hadoop.git -r 9e5db004df1a751e93aa89b42956c5325f3a4482
Compiled by jenkins on 2014-05-27T18:57Z
Compiled with protoc 2.5.0
From source with checksum 9e788148daa5dd7934eb468e57e037b5
This command was run using /usr/lib/hadoop/hadoop-common-2.4.0.2.1.2.1-471.jar

在升级之前,我编写了一个Java MRD程序,该程序使用Hive表进行输入和输出。在早期版本的Hadoop中,尽管我在编译时收到以下代码的过时警告,但它仍然有效:

    Job job = new Job(conf, "Foo");
    HCatInputFormat.setInput(job,InputJobInfo.create(dbName, inputTableName, null));

现在,在将对Hadoop 2.4.0.2.1.2.1-471中的新jar的依赖关系更新并运行相同的代码后,我得到以下错误:

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hcatalog/mapreduce/InputJobInfo
    at com.bigdata.hadoop.Foo.run(Foo.java:240)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
    at com.bigdata.hadoop.Foo.main(Foo.java:272)
    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.hadoop.util.RunJar.main(RunJar.java:212)
Caused by: java.lang.ClassNotFoundException: org.apache.hcatalog.mapreduce.InputJobInfo
    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)
    ... 9 more

要运行我的代码,请使用以下设置:

导出LIBJARS = / usr / lib / hive-hcatalog / share / hcatalog / hive-hcatalog-core.jar,/ usr / lib / hive / lib / hive-exec.jar,/ usr / lib / hive / lib / hive- metastore.jar,/ usr / lib / hive / lib / libfb303-0.9.0.jar,/ usr / lib / hive / lib / jdo-api-3.0.1.jar,/ usr / lib / hive / lib / antlr -runtime-3.4.jar,/ usr / lib / hive / lib / datanucleus-api-jdo-3.2.6.jar,/ usr / lib / hive / lib / datanucleus-core-3.2.10.jar

导出HADOOP_CLASSPATH = / usr / lib / hive-hcatalog / share / hcatalog / hive-hcatalog-core.jar,/ usr / lib / hive / lib / hive-exec.jar,/ usr / lib / hive / lib / hive- metastore.jar,/ usr / lib / hive / lib / libfb303-0.9.0.jar,/ usr / lib / hive / lib / jdo-api-3.0.1.jar,/ usr / lib / hive / lib / antlr -runtime-3.4.jar,/ usr / lib / hive / lib / datanucleus-api-jdo-3.2.6.jar,/ usr / lib / hive / lib / datanucleus-core-3.2.10.jar

关于为什么我得到java.lang.NoClassDefFoundError的任何想法:org / apache / hcatalog / mapreduce / InputJobInfo?

解决方案如下:

我认为您应该在pom.xml中添加以下依赖项。

<dependency>
     <groupId>org.apache.hcatalog</groupId>
     <artifactId>hcatalog-core</artifactId>
     <version>0.11.0</version>
</dependency>