eclipse导入hadoop源码错误处理

1. maven下载pom失败->重新操作
2. hadoop-streaming中build path错误->Java Build Path->Source:
   1. 删除...hadoop-yarn-server-resourcemanager/conf
   2. Link Source:源码根目录/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/conf，再随便起个名字；inclusion patterns：capacity-scheduler.xml；exclusion patters：**/*.java
3. org.apache.hadoop.io.serializer.avro.TestAvroSerialization
   
   1. 下载avro-tools-1.7.4.jar：http://archive.apache.org/dist/avro/avro-1.7.4/java/
   2. 进入目录：源码根目录\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. 进入目录：源码根目录\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 workspaceju
6. 出现Access restricted 错误，是因为jdk版本问题，hadoop 2.2.0默认1.6，系统可能是1.7。除错方法：build path -----> configure build path------->libraries找到jre system library，点击edit， 改为系统的jre system library

具体参考以下网站的处理

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