Hadoop集群启动 （ZooKeeper、HDFS、YARN、Hbase）
一、启动ZooKeeper集群
sh /opt/modules/zookeeper-3.4.14/bin/zkServer.sh start[hadoop@centos01 ~]$ sh /opt/modules/zookeeper-3.4.14/bin/zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /opt/modules/zookeeper-3.4.14/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
查看状态
sh /opt/modules/zookeeper-3.4.14/bin/zkServer.sh status[hadoop@centos03 dataDir]$ sh /opt/modules/zookeeper-3.4.14/bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /opt/modules/zookeeper-3.4.14/bin/../conf/zoo.cfg
Mode: leader
二、启动HDFS
sh /opt/modules/hadoop-2.8.2/sbin/start-dfs.sh[hadoop@centos01 ~]$ sh /opt/modules/hadoop-2.8.2/sbin/start-dfs.sh
Starting namenodes on [centos01 centos02]
centos01: starting namenode, logging to /opt/modules/hadoop-2.8.2/logs/hadoop-hadoop-namenode-centos01.out
centos02: starting namenode, logging to /opt/modules/hadoop-2.8.2/logs/hadoop-hadoop-namenode-centos02.out
centos03: starting datanode, logging to /opt/modules/hadoop-2.8.2/logs/hadoop-hadoop-datanode-centos03.out
centos01: starting datanode, logging to /opt/modules/hadoop-2.8.2/logs/hadoop-hadoop-datanode-centos01.out
centos02: starting datanode, logging to /opt/modules/hadoop-2.8.2/logs/hadoop-hadoop-datanode-centos02.out
Starting journal nodes [centos01 centos02 centos03]
centos03: starting journalnode, logging to /opt/modules/hadoop-2.8.2/logs/hadoop-hadoop-journalnode-centos03.out
centos02: starting journalnode, logging to /opt/modules/hadoop-2.8.2/logs/hadoop-hadoop-journalnode-centos02.out
centos01: starting journalnode, logging to /opt/modules/hadoop-2.8.2/logs/hadoop-hadoop-journalnode-centos01.out[hadoop@centos01 dataDir]$ jps
34278 NameNode
34535 DataNode
32328 QuorumPeerMain
35420 JournalNode
35981 Jps启动守护进程
sh /opt/modules/hadoop-2.8.2/sbin/hadoop-daemon.sh start zkfc
验证页面：验证 http://192.168.0.171:50070 http://192.168.0.172:50070
三、启动YARN集群
启动ResourceManager进程。 centos01、centos02
sh /opt/modules/hadoop-2.8.2/sbin/yarn-daemon.sh start resourcemanager[hadoop@centos01 ~]$ sh /opt/modules/hadoop-2.8.2/sbin/yarn-daemon.sh start resourcemanager
starting resourcemanager, logging to /opt/modules/hadoop-2.8.2/logs/yarn-hadoop-resourcemanager-centos01.out
启动 NodeManager 3个节点
sh /opt/modules/hadoop-2.8.2/sbin/yarn-daemon.sh start nodemanager[hadoop@centos01 ~]$ sh /opt/modules/hadoop-2.8.2/sbin/yarn-daemon.sh start nodemanager
starting nodemanager, logging to /opt/modules/hadoop-2.8.2/logs/yarn-hadoop-nodemanager-centos01.out
验证网页端：
四、启动Hbase
在centos01节点启动hbase
启动
sh /opt/modules/hbase-2.1.9/bin/start-hbase.sh
停止
sh /opt/modules/hbase-2.1.9/bin/stop-hbase.sh