解压缩hbase二进制安装文件到/opt目录下:
#tar -zxvf hbase-0.98.6-cdh5.3.6.tar.gz -C /opt/cdh-5.3.6/
编辑配置文件,这里仅配置数据目录,如果不指定数据目录,默认hbase数据存储在/tmp目录下:
#vim conf/hbase-site.xml
<property>
<name>hbase.rootdir</name>
<value>file:///opt/hbase0986</value>
</property>
创建hbase数据目录:
#mkdir -p /opt/hbase0986
#chown -R hadoop:hadoop /opt/hbase0986
启动hbase服务并且检查hbase运行状态:
#cd /opt/cdh-5.3.6/hbase-0.98.6/
#bin/start-hbase.sh
#bin/hbase shell
hbase(main):001:0> status
1 servers, 0 dead, 2.0000 average load
以上信息表明hbase已经启动并且正在运行。至此,hbase本地模式安装完成。
下面进行一些基本测试:
创建一张测试表并且新增几条数据:
hbase(main):002:0> create ‘testtable’,’colfaml’
0 row(s) in 0.2570 seconds
=> Hbase::Table – testtable
hbase(main):003:0> list ‘testtable’
TABLE
testtable
1 row(s) in 0.0160 seconds
=> [“testtable”]
hbase(main):004:0> put ‘testtable’,’myrow-1′,’colfaml:q1′,’value-1′
0 row(s) in 0.0930 seconds
hbase(main):005:0> put ‘testtable’,’myrow-2′,’colfaml:q2′,’value-2′
0 row(s) in 0.0050 seconds
hbase(main):006:0> put ‘testtable’,’myrow-3′,’colfaml:q3′,’value-3′
0 row(s) in 0.0060 seconds
hbase(main):007:0> put ‘testtable’,’myrow-2′,’colfaml:q3′,’value-3′
0 row(s) in 0.0040 seconds
通过scan检索数据:
hbase(main):012:0> scan ‘testtable’
ROW COLUMN+CELL
myrow-1 column=colfaml:q1, timestamp=1495836746559, value=value-1
myrow-2 column=colfaml:q2, timestamp=1495836769808, value=value-2
myrow-2 column=colfaml:q3, timestamp=1495836883408, value=value-3
myrow-3 column=colfaml:q3, timestamp=1495836780730, value=value-3
3 row(s) in 0.0310 seconds
通过get命令可以获得单个文件的值:
hbase(main):022:0> get ‘testtable’,’myrow-1′
COLUMN CELL
colfaml:q1 timestamp=1495836746559, value=value-1
1 row(s) in 0.0060 seconds
hbase(main):023:0> get ‘testtable’,’myrow-2′
COLUMN CELL
colfaml:q2 timestamp=1495836769808, value=value-2
colfaml:q3 timestamp=1495836883408, value=value-3
2 row(s) in 0.0100 seconds
通过delete命令可以删除数据:
hbase(main):027:0> delete ‘testtable’,’myrow-2′,’colfaml:q3′
0 row(s) in 0.0070 seconds
hbase(main):028:0> scan ‘testtable’
ROW COLUMN+CELL
myrow-1 column=colfaml:q1, timestamp=1495836746559, value=value-1
myrow-2 column=colfaml:q2, timestamp=1495836769808, value=value-2
myrow-3 column=colfaml:q3, timestamp=1495836780730, value=value-3
3 row(s) in 0.0260 seconds
删除表也很简单,不过hbase在删除表之前要先禁用表:
hbase(main):029:0> disable ‘testtable’
0 row(s) in 1.2320 seconds
hbase(main):030:0> drop ‘testtable’
0 row(s) in 0.1620 seconds
通过exit命令退出hbase shell:
hbase(main):031:0> exit
停止hbase守护进程:
$ bin/stop-hbase.sh
stopping hbase……………
至此,我们完成了一个从安装hbase到对表的创建,增删改查相关的操作,最终删除表,并且停止hbase服务的完整流程。