Hadoop hdfs yarn HA

Master MasterStandBy
Slave1 Slave2 Slave3


Zookeeper安装在Slave1,Slave2,Slave3上

->启动zookeeper
    ./zkServer.sh start  
    查看zookeeper状态：./zkServer.sh status， 正确的状态是一个leader，两个follower。
->在三个slave上启动journalnode
    sbin/hadoop-daemon.sh start journalnode
->在master上格式化hdfs
    hadoop namenode -format
->在master上格式化zkfc
    hdfs zkfc -formatZK
->在master启动所有
    ./start-all.sh

->在MasterStandBy上同步journalnode的共享数据，然后启动namenode进程：
    ./hdfs namenode  -bootstrapStandby
    ./hadoop-daemon.sh start  namenode

配置文件样板：

https://github.com/zhongzai/hadoop-/etcStandBy.rar

帮助链接

http://hadoop.apache.org/docs/r2.8.3/hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithQJM.html

http://hadoop.apache.org/docs/r2.8.3/hadoop-yarn/hadoop-yarn-site/ResourceManagerHA.html

http://hadoop.apache.org/docs/r2.8.3/hadoop-project-dist/hadoop-common/ClusterSetup.html

http://blog.csdn.net/everl_1/article/details/52303011

http://blog.csdn.net/u014726937/article/details/51154651