1、重启hadoop伪集群
cd /home/hadoop/hadoop-2.6.4/sbin
./start-all.sh
2、检查hadoop是否已经重启成功
cd /home/hadoop/hadoop-2.6.4/bin
./hadoop fs -ls /
3、清空zookeeper的缓存数据
rm -rf /home/hadoop/zookeeper-3.4.8/logs/version-2
rm -rf /home/hadoop/zookeeper-3.4.8/snapshot/d_1/version-2
rm -rf /home/hadoop/zookeeper-3.4.8/snapshot/d_1/zookeeper_server.pid
rm -rf /home/hadoop/zookeeper-3.4.8/snapshot/d_2/version-2
rm -rf /home/hadoop/zookeeper-3.4.8/snapshot/d_2/zookeeper_server.pid
rm -rf /home/hadoop/zookeeper-3.4.8/snapshot/d_3/version-2
rm -rf /home/hadoop/zookeeper-3.4.8/snapshot/d_3/zookeeper_server.pid
4、启动zookeeper
cd /home/hadoop/zookeeper-3.4.8/bin
./zkServer.sh start ../conf/zoo1.cfg
./zkServer.sh start ../conf/zoo2.cfg
./zkServer.sh start ../conf/zoo3.cfg
5、启动hbase数据库
cd /home/hadoop/hbase-1.1.5/bin
./start-hbase.sh
6、检查是否启动起来
./hbase shell
list
看到自己hbase的表后说明重启成功。7、启动成功后，执行jps命令，查看是否全部进程启动成功。
8、hadoop集群怎么正常停止
8.1 关闭hadoop
cd /home/hadoop/hadoop-2.6.4/sbin
./stop-all.sh
8.2 关闭zookeeper
cd /home/hadoop/zookeeper-3.4.8/bin
./zkServer.sh stop ../conf/zoo1.cfg
./zkServer.sh stop ../conf/zoo2.cfg
./zkServer.sh stop ../conf/zoo3.cfg
8.3 关闭hbase
cd /home/hadoop/hbase-1.1.5/bin
./stop-hbase.sh
