Hadoop2.2.0在Ubuntu编译失败解决方法

[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1:29.469s
[INFO] Finished at: Mon Nov 18 12:30:36 PST 2013
[INFO] Final Memory: 37M/120M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.5.1:testCompile (default-testCompile) on project hadoop-auth: Compilation failure: Compilation failure:
[ERROR] /home/chuan/trunk/hadoop-common-project/hadoop-auth/src/test/java/org/apache/hadoop/security/authentication/client/AuthenticatorTestCase.java:[84,13] cannot access org.mortbay.component.AbstractLifeCycle
[ERROR] class file for org.mortbay.component.AbstractLifeCycle not found
[ERROR] server = new Server(0);
[ERROR] /home/chuan/trunk/hadoop-common-project/hadoop-auth/src/test/java/org/apache/hadoop/security/authentication/client/AuthenticatorTestCase.java:[94,29] cannot access org.mortbay.component.LifeCycle
[ERROR] class file for org.mortbay.component.LifeCycle not found
[ERROR] server.getConnectors()[0].setHost(host);
[ERROR] /home/chuan/trunk/hadoop-common-project/hadoop-auth/src/test/java/org/apache/hadoop/security/authentication/client/AuthenticatorTestCase.java:[96,10] cannot find symbol
[ERROR] symbol  : method start()
[ERROR] location: class org.mortbay.jetty.Server
[ERROR] /home/chuan/trunk/hadoop-common-project/hadoop-auth/src/test/java/org/apache/hadoop/security/authentication/client/AuthenticatorTestCase.java:[102,12] cannot find symbol
[ERROR] symbol  : method stop()
[ERROR] location: class org.mortbay.jetty.Server
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException [ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :hadoop-auth

这里是Hadoop官网给出的该错误信息，即hadoop-auth没法编译通过，这里是直接把它们给出的错误信息粘贴过来了，如果你也遇到这个错误的话，可以找到hadoop目录下的hadoop-common-project/hadoop-auth文件夹下，可以看到在这下面有一个.pom文件，因为hadoop是用maven进行构建的，而pom文件是maven构建的必要文件，pom对于maven就相当于make对于Makefile,但是又不是完全相同的，因为pom文件中会给出项目构建所依赖的jar包，由maven自动进行依赖包的下载，从而实现对项目的构建。

这里的修改方法是在这个pom文件中的第58行加入

<artifactId>jetty-util</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty</artifactId>
当然可能因为下载的hadoop版本不同在所在行数上有所不同，具体的可以参见，https://issues.apache.org/jira/secure/attachment/12614482/HADOOP-10110.patch 这时hadoop官方提供的一个补丁，加入这些依赖之后，再进行构建，这里就没有问题了