添加新maven 公共repository

最新推荐文章于 2024-04-27 01:05:46 发布

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本文详细介绍了如何在已有Nexus搭建的Maven库中，为Hadoop集群升级到CDH4U6时，解决由于依赖库版本不同导致的编译问题。通过创建Cloudera的repository代理，并将其加入到Nexus的group中，最终成功解决了依赖问题，确保了集群升级的顺利进行。

最近公司hadoop集群准备升级到CHD4U6，要进行升级前的job测试。需要依赖一些新的公共jar包，比如：

hadoop-annotations-2.0.0-cdh4.6.0.jar
hadoop-auth-2.0.0-cdh4.6.0.jar
hadoop-common-2.0.0-cdh4.6.0.jar

与之前的hadoop版本（chd3u5)依赖不同。但用nexus搭建的maven库并没有创建该公共repository代理。

查得：http://www.cloudera.com/content/cloudera-content/cloudera-docs/CDH4/4.2.1/CDH4-Installation-Guide/cdh4ig_topic_31.html

根据其中描述得到id：cloudera， remote storage location：https://repository.cloudera.com/artifactory/cloudera-repos/，于是创建代理。

创建后编译不行，看了下setting文件：

<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
                      http://maven.apache.org/xsd/settings-1.0.0.xsd">

  <proxies>
    <proxy>
      <id>normal</id>
      <active>true</active>
      <protocol>http</protocol>
	  <username>Deployment</username> 
      <host>10.16.1.240:8081/nexus</host>
      <!-- <port>80</port> -->
      <nonProxyHosts>10.16.1.240:8081/nexus</nonProxyHosts>
    </proxy>
  </proxies>

  <servers>
	<server>
      <id>releases</id>
	  <username>Deployment</username>
    </server>
	<server>
      <id>snapshots</id>
	  <username>Deployment</username>
    </server>
  </servers>

  <mirrors>
    <mirror>
      <!--This is used to direct the public snapshots repo in the 
          profile below over to a different nexus group -->
      <id>nexus-public-snapshots</id>
      <mirrorOf>public-snapshots</mirrorOf>
      <url>http://10.16.1.240:8081/nexus/content/groups/public-snapshots</url>
    </mirror>
<span style="color:#ff0000;">    <mirror>
      <!--This sends everything else to /public -->
      <id>nexus</id>
      <mirrorOf>*</mirrorOf>
      <url>http://10.16.1.240:8081/nexus/content/groups/public</url>
    </mirror></span>
  </mirrors>
  
  <profiles>
    <profile>
      <id>development</id>
      <repositories>
        <repository>
          <id>central</id>
          <url>http://central</url>
          <releases><enabled>true</enabled></releases>
          <snapshots><enabled>true</enabled></snapshots>
        </repository>
      </repositories>
     <pluginRepositories>
        <pluginRepository>
          <id>central</id>
          <url>http://central</url>
          <releases><enabled>true</enabled></releases>
          <snapshots><enabled>true</enabled></snapshots>
        </pluginRepository>
      </pluginRepositories>
    </profile>
    <profile>
      <!--this profile will allow snapshots to be searched when activated-->
      <id>public-snapshots</id>
      <repositories>
        <repository>
          <id>public-snapshots</id>
          <url>http://public-snapshots</url>
          <releases><enabled>false</enabled></releases>
          <snapshots><enabled>true</enabled></snapshots>
        </repository>
      </repositories>
     <pluginRepositories>
        <pluginRepository>
          <id>public-snapshots</id>
          <url>http://public-snapshots</url>
          <releases><enabled>false</enabled></releases>
          <snapshots><enabled>true</enabled></snapshots>
        </pluginRepository>
      </pluginRepositories>
    </profile>
  </profiles>
  <activeProfiles>
    <activeProfile>development</activeProfile>
  </activeProfiles>
</settings>

其中红字部分可以看出指向了public这个group，于是在nexus中把刚创建的repository加入group。编译ok。