AvatarNode命令集锦

1、主从切换等操作：

./hadoop org.apache.hadoop.hdfs.AvatarShell

[-{zero|one} -showAvatar] [-service serviceName]

           [-{zero|one} -setAvatar {primary|standby}] [-service serviceName]

           [-{zero|one} -shutdownAvatar] [-service serviceName]

./hadoop org.apache.hadoop.hdfs.AvatarShell -zero -shutdownAvatar

./hadoop org.apache.hadoop.hdfs.AvatarShell  -one -setAvatar primary

./hadoop org.apache.hadoop.hdfs.AvatarShell  -zero -setAvatar primary

1) ./hadoop org.apache.hadoop.hdfs.AvatarShell –showAvatar 查看当前AvatarNode的状态

./hadoop org.apache.hadoop.hdfs.AvatarShell -one -showAvatar 

./hadoop org.apache.hadoop.hdfs.AvatarShell -zero -showAvatar 

2)   ./hadoop org.apache.hadoop.hdfs.AvatarShell  -setAvatar primary 把当前Standby节点升级Primary节点

3)  bin/hadoop org.apache.hadoop.hdfs.AvatarShell -setAvatar standby （暂先不支持）

/usr/java/jdk1.6.0_30/bin/jps

2、zookeeper的命令行操作工具

./hadoop org.apache.hadoop.hdfs.AvatarZKShell

Usage: java AvatarZKShell [-servie serviceName]

           [-updateZK -{zero|one} [-force]]

           [-clearZK]

           [-createZK -{zero|one}]

           [-getZK]

./hadoop org.apache.hadoop.hdfs.AvatarZKShell -clearZK

./hadoop org.apache.hadoop.hdfs.AvatarZKShell -createZK -zero

./hadoop org.apache.hadoop.hdfs.AvatarZKShell -updateZK -zero

./hadoop org.apache.hadoop.hdfs.AvatarZKShell -updateZK -getZK

3、namenode启动

./hadoop org.apache.hadoop.hdfs.server.namenode.AvatarNode  -zero

 ./hadoop org.apache.hadoop.hdfs.server.namenode.AvatarNode -one -standby -sync

4、datanode启动

nohup   ./hadoop org.apache.hadoop.hdfs.server.datanode.AvatarDataNode&