hadoop-2.6.0-src源碼導入Eclipse 轉載

轉載地址：http://m.blog.csdn.net/blog/le119126/42009281

一.導入

先修改源碼 參考 二.改錯裏面的第3條

1.cd到 hadoop-2.6.0-src/hadoop-maven-plugins

mvn intall

2.在cd到hadoop-2.6.0-src 目錄下

mvn eclipse:eclipse -DskipTests

3. 在Eclipse中：File-Import-Existing Projects into Workspace 選擇hadoop-2.6.0-src目錄導入

二.改錯

1./hadoop-common/src/test/java/org/apache/hadoop/io/serializer/avro/TestAvroSerialization.java顯示找不到AvroRecord類

去http://grepcode.com/file/repo1.maven.org/maven2/org.apache.hadoop/hadoop-common/2.5.0/org/apache/hadoop/io/serializer/avro/AvroRecord.java/ 下載2.5.0或者更高版本的。放到相應位置

2.org.apache.hadoop.ipc 下面沒有protobuf文件夾，也缺乏相應的java文件，在org.apache.hadoop.ipc下面創建protobuf文件夾，把/hadoop-common/target/generated-sources/java/org/apache/hadoop/ipc/protobuf 裏面的響應java文件移到該文件夾下-不要複製，複製會出現重複定義的錯誤。

3.hadoop-streaming裏面的build path有問題，顯示home/haodoop/桌面/hadoop-2.6.0-src/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/conf(missing)

我已經把全部源碼文件已經導入到Eclipse 的工做目錄workspace了，可是它指向的是桌面的源-我以前在 步驟一.導入 時用mvn install ；mvn eclipse:eclipse時的目錄，根據網上說 右鍵hadoop-streaming項目-properties->左邊Java Build Path->Source->選定錯誤項remove掉引用，當時好了，下次打開Eclipse仍是有相同的問題。。我對java ，Eclipse不熟，下面是個人解決辦法

解決：選中hadoop-streaming項目，在hadoop-stream目錄下新建文件夾config，把hadoop-2.6.0-src/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/conf 中的文件拷貝到新建的config下，右鍵-properties->左邊Java Build Path->Source->選定錯誤項 ，右邊有edit

 

hadoop-streaming目錄下的pom.xml文件，找到 ：

<directory>${basedir}/../../hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/conf</directory>
 修改成：
<directory>${basedir}/config</directory> 

而後從新按照 一.導入中的步驟從新mvn intall，mvn eclipse:eclipse，再在Eclipse中刪除掉有錯的hadoop-streaming項目，而後再導入剛剛mvn生成的hadoop-streaming項目，發現 右鍵-properties->左邊Java Build Path->Source 裏面少了conf 出錯的項，只有兩項了，不放心就又用add Folder新建了一項