Hbase高可用搭建

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实验准备：

主机名	IP地址	安装服务	备注
hadoop-01	192.168.200.201	jdk1.8, zookeeper3.4.8,hadoop2.7.7,ntpd	主节点
hadoop-02	192.168.200.202	jdk1.8,zookeeper3.4.8,hadoop2.7.7,ntpd	备用主节点
hadoop-03	192.168.200.203	jdk1.8,zookeeper3.4.8,hadoop2.7.7,ntpd	服务节点

启动顺序：

1. zookeeper集群
2. hadoop集群
3. hbase集群

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下载所需Hbase压缩包

下载链接

实验版本：1.2.4

上传压缩包，接着解压压缩包

# tar -zxvf 文件名

配置环境变量

# vi /etc/profile

添加 hbase_home和path:

export HBASE_HOME=/root/software/hbase-1.2.4
export PATH=$PATH:$HBASE_HOME/bin

生效环境变量：

# source /etc/profile

检测 # hbase version

[root@hadoop-02 hbase-1.2.4]# hbase version
HBase 1.2.4 Source code repository git://asf-dev/home/busbey/projects/hbase revision=67592f3d062743907f8c5ae00dbbe1ae4f69e5af Compiled by busbey on Tue Oct 25 18:10:20 CDT 2016 From source with checksum b45f19b5ac28d9651aa2433a5fa33aa0

配置Hbase配置文件

官方配置文件详解

配置 ${HBASE_HOME}/conf/hbase-env.sh

export JAVA_HOME=/root/software/jdk1.8.0_251
export HADOOP_HOME=/root/software/hadoop-2.7.7  #配置hadoop变量，否则hbase不识别hdfs集群名
export HBASE_HOME=/root/software/hbase-1.2.4
export HBASE_LOG_DIR=${HBASE_HOME}/logs
export HBASE_MANAGES_ZK=fales            #不使用hbase自带的zookeeper，使用搭建的zk集群。
export HBASE_CLASSPATH=${HBASE_HOME}/conf

配置 ${HBASE_HOME}/conf/hbase-site.xml

<configuration>
        
        
        <property>
                <name>hbase.rootdirname>
                <value>hdfs://ns1/hbasevalue>
        property>
        
        <property>
                <name>hbase.cluster.distributedname>
                <value>truevalue>
        property>
        <property>
                <name>hbase.mastername>
                <value>hdfs://host1:60000value>
        property>
         
        <property>
                <name>hbase.zookeeper.quorumname>
                <value>hadoop-01,hadoop-02,hadoop-03value>
                <description>Comma separated list of servers in the ZooKeeper Quorum. For example, "host1.mydomain.com,host2.mydomain.com,host3.mydomain.com". By default this is set to localhost for local and pseudo-distributed modes of operation. For a fully-distributed setup, this should be set to a full list of ZooKeeper quorum servers. If HBASE_MANAGES_ZK is set in hbase-env.sh this is the list of servers which we will start/stop ZooKeeper on. description>
        property>
        <property>
                <name>hbase.zookeeper.property.dataDirname>
                <value>/root/zkDataDir/zookeepervalue>
                <description>Property from ZooKeeper's config zoo.cfg. The directory where the snapshot is stored. description>
        property>
configuration>

分发Hbase文件

# scp -r hadoop-01上hbase的文件夹路径 hadoop-02:/目标路径

# scp -r hadoop-01上hbase的文件夹路径 hadoop-03:/目标路径

分别配置环境变量，参考上文，生效后一定要检测

测试

开启zookeeper集群

开启zookeeper集群

#start-hbase.sh (hadoop-01)

#hbase-daemon.sh start master （hadoop-02）

网页检测：

问题解决

看进程都有无：

[root@hadoop-01 ~]# jps
2369 QuorumPeerMain
11617 HRegionServer			#hbase进程
7300 JournalNode
7509 DFSZKFailoverController
12613 Jps
7751 NodeManager
6970 NameNode
11467 HMaster				#hbase
7084 DataNode
7631 ResourceManager

[root@hadoop-02 ~]# jps
8993 Jps
4997 JournalNode
7349 HRegionServer			#hbase进程
7606 HMaster				#hbase
5223 NodeManager
2364 QuorumPeerMain
5133 DFSZKFailoverController
4815 NameNode
4895 DataNode

[root@hadoop-03 ~]# jps
5920 Jps
3763 DataNode
3971 NodeManager
2342 QuorumPeerMain
3865 JournalNode
5481 HRegionServer			#hbase进程

如果只有hadoop-01有hbase相关进程，检测时间是否同步

配置ntpd时钟源

如果只有hadoop-01有hbase相关进程，检测时间是否同步

配置ntpd时钟源

如果还未解决，请查看Hbase启动日志。