Hbase的安装配置

 

一、上传解压后的Hbase文件。

二、配置：

    1、.bash_profile文件：

export HBASE_HOME=/home/kituser/bigdata/hbase-0.94.6-cdh4.5.0
export CLASSPATH=$CLASSPATH:$HBASE_HOME/lib
export PATH=$PATH:$HBASE_HOME/bin:$HBASE_HOME/sbin

    2、regionservers文件

kit-b6
kit-b7

    3、hbase-env.sh文件

export JAVA_HOME=/usr/java/jdk1.7.0_45
export HBASE_MANAGES_ZK=true

    4、hbase-site.xml文件

<configuration>
    <property>   
       <name>hbase.rootdir</name>  
       <value>hdfs://kit-b5:8020/hbase</value> 
    </property>   

    <property>   
        <name>hbase.cluster.distributed</name>   
        <value>true</value>  
    </property> 

    <property>  
        <name>hbase.master</name>  
        <value>kit-b5:60000</value>  
    </property>

    <property> 
        <name>hbase.zookeeper.quorum</name> 
        <value>kit-b5,kit-b6,kit-b7</value>
     </property> 

    <property> 
        <name>hbase.zookeeper.property.clientPort</name> 
        <value>2181</value> 
    </property>

    <property> 
 
      <name>hbase.zookeeper.property.dataDir</name> 
      <value>/data/kituser_hadoop_tmp/zookeeper</value> 
      <description>Property fromZooKeeper's config zoo.cfg.  The directory where the snapshot isstored. 
      </description> 
 
    </property>

     <property>
         <name>hbase.regionserver.lease.period</name>
         <value>120000</value>
     </property>

     <property>
         <name>hbase.rpc.timeout</name>
         <value>120000</value>
     </property>

</configuration>

三、验证Hbase安装

    1、启动/停止服务

start-hbase.sh

stop-hbase.sh

hbase shell    //启动shell

    2、web界面查看：

http://kit-b5:60010/master.jsp

    3、命令：

创建表：create 'member','member_id','address','info'

显示表：list

显示表描述：describe 'member'

禁用表：disable 'member'

删除一个列族：alter'member',{NAME=>'member_id',METHOD=>'delete'}

启用表：enable 'member'

删除表：drop 'member'

查询表是否存在：exists 'member'

判断表是否enabled： is_enabled 'member'

判断表是否disable：is_disabled 'member'

插入记录：

• put'member','scutshuxue','info:age','24'
• put'member','scutshuxue','info:birthday','1987-06-17'
• put'member','scutshuxue','info:company','alibaba'
• put'member','scutshuxue','address:contry','china'
• put'member','scutshuxue','address:province','zhejiang'
• put'member','scutshuxue','address:city','hangzhou'
• put'member','xiaofeng','info:birthday','1987-4-17'
• put'member','xiaofeng','info:favorite','movie'
• put'member','xiaofeng','info:company','alibaba'
• put'member','xiaofeng','address:contry','china'
• put'member','xiaofeng','address:province','guangdong'
• put'member','xiaofeng','address:city','jieyang'
• put'member','xiaofeng','address:town','xianqiao'

获取一个id的所有数据：get 'member','scutshuxue'

获取一个id，一个列族的所有数据：get 'member','scutshuxue','info'

获取一个id，一个列族中一个列的所有数据：get 'member','scutshuxue','info:age'

修改scutshuxue的年龄为99：put 'member','scutshuxue','info:age' ,'99'

通过timestamp来获取两个版本的数据：

• get 'member','scutshuxue',{COLUMN=>'info:age',TIMESTAMP=>1321586238965}
• get 'member','scutshuxue',{COLUMN=>'info:age',TIMESTAMP=>1321586571843}

全表扫描：scan 'member'

删除id为temp的值的'info:age'字段：delete 'member','temp','info:age'

删除整行:deleteall 'member','xiaofeng'

查询表中有多少行：count 'member'

给‘xiaofeng’这个id增加'info:age'字段，并使用counter实现递增:

• incr 'member','xiaofeng','info:age' COUNTER VALUE = 1
• incr 'member','xiaofeng','info:age' COUNTER VALUE = 2

将整张表清空：truncate 'member'

四、错误及解决：

    1、启动时报Name or service not knownstname错误

解决：记不清了，好像是因为regionservers文件GBK、UTF-8编码不对的问题造成的，应该用UTF-8。

    2、HMaster启动后，一会就停止，日志中报如下错误：

2014-06-19 16:44:42,296 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server kit-b1/172.16.19.151:2181. Will not attempt to authenticate using SASL (unknown error)
2014-06-19 16:44:42,296 WARN org.apache.zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: 拒绝连接
    at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
    at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
    at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
    at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
2014-06-19 16:44:42,397 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server kit-b2/172.16.19.152:2181. Will not attempt to authenticate using SASL (unknown error)
2014-06-19 16:44:42,397 WARN org.apache.zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: 拒绝连接
    at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
    at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
    at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
    at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
2014-06-19 16:44:42,498 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server kit-b3/172.16.19.153:2181. Will not attempt to authenticate using SASL (unknown error)
2014-06-19 16:44:42,499 WARN org.apache.zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: 拒绝连接
    at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
    at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
    at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
    at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)

        解决：两种方法：1、运行启动两次start-hbase.sh；2、启动一次start-hbase.sh后，到kit-b2、 kit-b3上手动启动localregionservers.sh命令。我是用第1种生效的。第2种是测试时使用的。