Eclipse 導入 Hadoop 源碼

1.準備工做

• jdk：
• eclipse：
• Maven：
• libprotoc ：https://developers.google.com/protocol-buffers/
• hadoop:http://www.apache.org/dyn/closer.cgi/hadoop/common/

---

 

添加開源中國maven庫：http://maven.oschina.net/home.html

maven\conf\settings.xml

<localRepository>path</localRepository>

<localRepository>path</localRepository>
<mirrors>
    <mirror>
        <id>nexus-osc</id>
        <mirrorOf>*</mirrorOf>
        <name>Nexus osc</name>
        <url>http://maven.oschina.net/content/groups/public/</url>
    </mirror>
</mirrors>

 

2.導入

1. 將hadoop源碼解壓到一個目錄，注意目錄層次不要太深，不然可能沒法解壓。
2. 進入hadoop-maven-plugins文件夾，執行 mvn install 
3. 返回源碼根目錄，執行 mvn eclipse:eclipse –DskipTests 
4. eclipse在任意目錄建立新的WorkSpace
5. eclipse設置Maven：window->preference->maven->{Installations...;user Settings：maven\conf\settings.xml}
6. eclipse：File->inport->Existing Projects into WorkSpace->Hadoop源碼根目錄

3.錯誤處理

1. maven下載pom失敗->從新操做
2. hadoop-streaming中build path錯誤->Java Build Path->Source:
   1. 刪除...hadoop-yarn-server-resourcemanager/conf
   2. Link Source:源碼根目錄/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/conf，再隨便起個名字；inclusion patterns：capacity-scheduler.xml；exclusion patters：**/*.java
3. org.apache.hadoop.io.serializer.avro.TestAvroSerialization
   
   1. 下載avro-tools-1.7.4.jar：http://archive.apache.org/dist/avro/avro-1.7.4/java/
   2. 進入目錄：源碼根目錄\hadoop-common-project\hadoop-common\src\test\avro
   3. java -jar path/to/avro-tools-1.7.4.jar compile schema avroRecord.avsc ..\java
   4. eclipse 刷新
4. org.apache.hadoop.ipc.protobuf.TestProtos
   
   1. 進入目錄：源碼根目錄\hadoop-common-project\hadoop-common\src\test\proto
   2. protoc --java_out=../java *.proto
   3. eclipse 刷新
5. project->clean..->clean all projects & Build the entire workspace