Hbase1.2.2安装和集群搭建

Posted 2021-01-18 guan-li

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1.环境准备

jdk1.7.0_79
Hadoop2.7.2.(匹配Hbase1.2.2)
zookeeer3.4.8
hbase-1.2.2-bin.tar.gz

最好和hadoop安装在统一用户下,解压安装包

tar zxvf hbase-1.2.2-bin.tar.gz

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2. 修改配置文件

• .bashrc(多节点)

export JAVA_HOME=/usr/local/jdk1.7.0_79
export HADOOP_HOME=/home/hadoop/hadoop
export HBASE_HOME=/home/hadoop/hbase
export CLASSPATH=$JAVA_HOME/lib:$JAVA_HOME/jre/lib:$CLASSPATH
export PATH=$PATH:$JAVA_HOME/bin:$HADOOP_HOME/bin:$HADOOP_HOME/sbin:$HBASE_HOME/bin

source .bashrc使其生效

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• hbase-env.sh

文件开头添加

export JAVA_HOME=/usr/local/jdk1.7.0_79

#是否使用默认zookeeper
export HBASE_MANAGES_ZK=false

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• hbase-site.xml

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
<property>
       <name>hbase.rootdir</name>
       <value>hdfs://192.168.163.101:9000/hbase</value>
     </property>
     <property>
       <name>hbase.cluster.distributed</name>
       <value>true</value>
     </property>
     <property>
       <name>hbase.zookeeper.quorum</name>
       <value>192.168.163.101</value>
     </property>
     <property>
       <name>dfs.replication</name>
       <value>3</value>
     </property>
</configuration>

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• regionservers

192.168.163.101
192.168.163.102
192.168.163.103

修改完成后将hbase目录发送至各个几点.

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3.启动/测试

• 启动

start-hbase.sh

正常启动出现进程

HMaster(主)
HRegionServer(从)

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• 测试

#进入命令行
hbase shell

#创建表
create ‘users‘,‘user_id‘,‘address‘,‘info‘

#列出所有表
list

#退出
exit

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• 启动时遇到的问题

2018-05-16 21:10:46,599 FATAL [regionserver/centos7-3/192.168.163.103:16020] regionserver.HRegionServer: Master rejected startup because clock is out of sync
org.apache.hadoop.hbase.ClockOutOfSyncException: org.apache.hadoop.hbase.ClockOutOfSyncException: Server centos7-3,16020,1526476234500 has been rejected; Reported t
ime is too far out of sync with master.  Time difference of 37645ms > max allowed of 30000ms
        at org.apache.hadoop.hbase.master.ServerManager.checkClockSkew(ServerManager.java:407)
        at 

可以看出从节点与主节点的最大时间差允许30s,而有一个节点出现了37s的时间差.
启动ntp时间同步服务即可.

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