平时习惯了window下开发，而Hbase只能在linux环境下运行，所以决定把hbase安装一台虚拟机上，在windows下运行eclipse连接虚拟机里的hbase
因为对linux命令了解不多，所以很多时候都是编码baidu边安装的。
安装Hbase单机模式
（虚拟机安装的是CentOS）
1、下载Hbase版本
在http://apache.claz.org/hbase/选择一个需要下载的hbase版本，我选择的是hbase-0.94.24
建立一个hbase目录，并下载hbase.
[xxxx@localhost ~]$ mkdir hbase [xxxx@localhost ~]$ cd hbase [xxxx@localhost hbase]$ wget http://apache.claz.org/hbase/hbase-0.94.24/hbase-0.94.24.tar.gz
2、解压tar.gz文件，得到如下结果
[xxxx@localhost hbase]$ ll 总计 57900 drwxr-xr-x 10 daidai daidai 4096 09-30 08:07 hbase-0.94.24 -rw-rw-r-- 1 daidai daidai 59210066 10-30 08:08 hbase-0.94.24.tar.gz
3、启动Hbase
[xxxx@localhost hbase]$ ./hbase-0.94.24/bin/start-hbase.sh starting master, logging to /home/daidai/hbase/hbase-0.94.24/bin/../logs/hbase-daidai-master-localhost.localdomain.out [xxxx@localhost hbase]$
4、启动Hbase Shell 操作Hbase
[xxxx@localhost hbase]$ ./hbase-0.94.24/bin/hbase shell HBase Shell; enter 'help<RETURN>' for list of supported commands. Type "exit<RETURN>" to leave the HBase Shell Version 0.94.24, r68ed793a1d89226f8fb1ee1ee618c1e7779d46cd, Mon Sep 29 23:09:31 UTC 2014 hbase(main):001:0> list TABLE mxb mytable 2 row(s) in 0.5220 seconds hbase(main):002:0>
数据库中已经存在表mxb和mytable,通过Hbase Shell删除表mxb
hbase(main):007:0> disable 'mxb' 0 row(s) in 1.3730 seconds hbase(main):008:0> drop 'mxb' 0 row(s) in 0.0950 seconds hbase(main):009:0> list TABLE mytable 1 row(s) in 0.0320 seconds hbase(main):010:0>
5、可以通过网页查询HBase动行状态
http://ip:60010
如果网页无法打开，查看linuex防火墙是否关闭
[xxxx@localhost hbase]$ su - 口令： [root@localhost ~]# service iptables stop 清除防火墙规则：[确定] 把 chains 设置为 ACCEPT 策略：filter [确定] 正在卸载 Iiptables 模块：[确定] [root@localhost ~]#
使用Hbase JavaAPI 访问HBase
1）新建一个eclipse工程，并导入Hbase中的jar包。
需要导入的jar包：hbase-0.94.24.jar
hbase-0.94.24\lib下的所有jar包
2）创建表的代码如下
public static void main(String[] args) {
String createTableName = "mytable2";
Configuration configuration = HBaseConfiguration.create();;
configuration.set("hbase.zookeeper.quorum", "10.10.2.66");
//configuration.set("hbase.master", "10.10.2.66:600000");
System.out.println("start create table ......");
try {
HBaseAdmin hBaseAdmin = new HBaseAdmin(configuration);
HTableDescriptor tableDescriptor = new HTableDescriptor(createTableName);
tableDescriptor.addFamily(new HColumnDescriptor("column1"));
tableDescriptor.addFamily(new HColumnDescriptor("column2"));
tableDescriptor.addFamily(new HColumnDescriptor("column3"));
hBaseAdmin.createTable(tableDescriptor);
hBaseAdmin.close();
} catch (MasterNotRunningException e) {
e.printStackTrace();
} catch (ZooKeeperConnectionException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("end create table ......");
}
如果出现下面错误
14/12/16 19:52:22 INFO zookeeper.ClientCnxn: Session establishment complete on server localhost.localdomain/10.10.2.66:2181, sessionid = 0x14a54972f20000f, negotiated timeout = 40000 14/12/16 19:52:23 INFO client.HConnectionManager$HConnectionImplementation: getMaster attempt 0 of 14 failed; retrying after sleep of 1001 java.net.ConnectException: Connection refused: no further information
需要修改linux的host地址，去掉原127.0.0.1,重启Hbase
10.10.2.66 localhost.localdomain localhost #127.0.0.1 localhost.localdomain localhost
修改本地host地址
10.10.2.66 localhost.localdomain
3)通过Hbase shell 验证表是否创建成功
[xxxx@localhost ~]$ ./hbase/hbase-0.94.24/bin/hbase shell HBase Shell; enter 'help<RETURN>' for list of supported commands. Type "exit<RETURN>" to leave the HBase Shell Version 0.94.24, r68ed793a1d89226f8fb1ee1ee618c1e7779d46cd, Mon Sep 29 23:09:31 UTC 2014 hbase(main):001:0> list TABLE mytable mytable2 2 row(s) in 0.4340 seconds hbase(main):002:0>