Hbase配置手冊

環境:

      操作系統:ubuntu 12.10 64bit

      jdk:sun jdk 1.6 64bit

      hadoop:apache hadoop 1.02

      hbase：apache hbase 0.92

      先決條件:配置apache hadoop append,默認這個屬性是false，需要設置為true

1）下載hbase
解壓到每台服務器的/data/soft
解壓

root@master:/data/soft# tar zxvf hbase-0.92.0.tar.gz

建立軟連

root@master:/data/soft# ln -s hbase-0.92.0 hbase

2）配置hbase
前提是安裝完成hadoop，默認在namenode上進行
1.修改conf/hbase-env.sh，添加jdk支持

export JAVA_HOME=/usr/local/jdk 
export HBASE_MANAGES_ZK=true 
export HBASE_LOG_DIR=/data/logs/hbase

2. 修改conf/hbase-site.xml，

<property> 
<name>hbase.rootdir</name> 
<value>hdfs://master:9000/hbase</value> 
</property> 
<property> 
<name>hbase.cluster.distributed</name> 
<value>true</value> 
</property> 
<property> 
<name>hbase.master</name> 
<value>hdfs://master:60000</value> 
</property> 

<property> 
<name>hbase.zookeeper.quorum</name> 
<value>slave-001,slave-002,slave-003</value> 
<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.dataDir</name> 
<value>/data/work/zookeeper</value> 
<description>Property from ZooKeeper's config zoo.cfg. The directory where the snapshot is stored. </description> 
</property>

hbase.rootdir設置hbase在hdfs上的目錄，主機名為hdfs的namenode節點所在的主機
hbase.cluster.distributed設置為true，表明是完全分布式的hbase集群
hbase.master設置hbase的master主機名和端口
hbase.zookeeper.quorum設置zookeeper的主機，建議使用單數

3.修改hadoop的目錄下的conf/hdfs-site.xml

<property> 
<name>dfs.datanode.max.xcievers</name> 
<value>4096</value> 
</property>

 

4.修改conf/regionservers
將所有的datanode添加到這個文件，類似與hadoop中slaves文件

5.拷貝hbase到所有的節點

6. 啟動hbase

$ ./bin/start-hbase.sh

7 hbase自帶的web界面

http://master:60010/

8 測試
1).登錄hbase客戶端

./bin/hbase shell

 

2).新建數據表，並插入3條記錄

hbase(main):003:0> create 'test', 'cf' 
0 row(s) in 1.2200 seconds 
hbase(main):003:0> list 'table' 
test 
1 row(s) in 0.0550 seconds 
hbase(main):004:0> put 'test', 'row1', 'cf:a', 'value1' 
0 row(s) in 0.0560 seconds 
hbase(main):005:0> put 'test', 'row2', 'cf:b', 'value2' 
0 row(s) in 0.0370 seconds 
hbase(main):006:0> put 'test', 'row3', 'cf:c', 'value3' 
0 row(s) in 0.0450 seconds

 

3).查看插入的數據

hbase(main):007:0> scan 'test' 
ROW COLUMN+CELL 
row1 column=cf:a, timestamp=1288380727188, value=value1 
row2 column=cf:b, timestamp=1288380738440, value=value2 
row3 column=cf:c, timestamp=1288380747365, value=value3 
3 row(s) in 0.0590 seconds

 

4).讀取單條記錄

hbase(main):008:0> get 'test', 'row1' 
COLUMN CELL 
cf:a timestamp=1288380727188, value=value1 
1 row(s) in 0.0400 seconds

 

5).停用並刪除數據表

hbase(main):012:0> disable 'test' 
0 row(s) in 1.0930 seconds 
hbase(main):013:0> drop 'test' 
0 row(s) in 0.0770 seconds

 

6).退出

hbase(main):014:0> exit