1.同步时间(root下执行):date -s "2016-04-15 12:00:00"
2.切换回hadoop启用环境:source /etc/profile
3.启动所有机器的zookeeper:zkServer.sh start
4.启动journalnode:hadoop-daemon.sh start journalnode
5.namenode格式化:hdfs namenode -format
6.删除原有的datanode数据(root下):(1)cd /home/hadoop/ha/hadoop/data/data
(2)rm -rf current
7.启动全部集群(hadoop下):start-all.sh
8.启动hbase:start-hbase.sh