hadoop远程调试源码

1、将下列信息填写到hadoop-en.sh环境变量中，如果调试NameNode.

HADOOP_NAMENODE_OPTS="-agentlib:jdwp=transport=dt_socket,address=8888,server=y,suspend=y"

#HADOOP_SECONDARYNAMENODE_OPTS="-agentlib:jdwp=transport=dt_socket,address=8789,server=y,suspend=y"

#HADOOP_DATANODE_OPTS="-agentlib:jdwp=transport=dt_socket,address=8790,server=y,suspend=y"

#HADOOP_BALANCER_OPTS="-agentlib:jdwp=transport=dt_socket,address=8791,server=y,suspend=y"

#HADOOP_JOBTRACKER_OPTS="-agentlib:jdwp=transport=dt_socket,address=8792,server=y,suspend=y"

#HADOOP_TASKTRACKER_OPTS="-agentlib:jdwp=transport=dt_socket,address=8793,server=y,suspend=y"

2、打开Eclipse,设置文件如图

3、按住Ctrl点进去即可看到NameNode源码

4、Debug设置