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HBase Shell 常用命令及例子
一、一般操作
1.查询服务器状态
hbase(main):024:0>status
3 servers, 0 dead,1.0000 average load
2.查询hive版本
hbase(main):025:0>version
0.90.4, r1150278,Sun Jul 24 15:53:29 PDT 2011
二、DDL操作
1.创建一个表
hbase(main):011:0>create ‘member‘,‘member_id‘,‘address‘,‘info‘
0 row(s) in 1.2210seconds
2.获得表的描述
hbase(main):012:0>list
TABLE
member
1 row(s) in 0.0160seconds
hbase(main):006:0>describe ‘member‘
DESCRIPTION
ENABLED
{NAME => ‘member‘, FAMILIES => [{NAME=> ‘address‘,
BLOOMFILTER => ‘NONE‘, REPLICATION_SCOPE => ‘0‘, true
VERSIONS => ‘3‘, COMPRESSION => ‘NONE‘,TTL
=> ‘2147483647‘, BLOCKSIZE => ‘65536‘, IN_MEMORY => ‘fa
lse‘, BLOCKCACHE => ‘true‘}, {NAME =>‘info‘,
BLOOMFILTER => ‘NONE‘, REPLICATION_SCOPE => ‘0‘, VERSI
ONS => ‘3‘, COMPRESSION => ‘NONE‘, TTL=> ‘2147483647‘,
BLOCKSIZE => ‘65536‘, IN_MEMORY => ‘false‘,
BLOCKCACHE => ‘true‘}]}
1 row(s) in 0.0230seconds
3.删除一个列族，alter，disable，enable
我们之前建了3个列族，但是发现member_id这个列族是多余的，因为他就是主键，所以我们要将其删除。
hbase(main):003:0>alter ‘member‘,{NAME=>‘member_id‘,METHOD=>‘delete‘}
ERROR: Table memberis enabled. Disable it first
before altering.
报错，删除列族的时候必须先将表给disable掉。
hbase(main):004:0>disable ‘member‘
0 row(s) in 2.0390seconds
hbase(main):005:0>alter‘member‘,NAME=>‘member_id‘,METHOD=>‘delete‘
0 row(s) in 0.0560seconds
hbase(main):006:0>describe ‘member‘
DESCRIPTION
ENABLED
{NAME => ‘member‘, FAMILIES => [{NAME=> ‘address‘,
BLOOMFILTER => ‘NONE‘, REPLICATION_SCOPE => ‘0‘,false
VERSIONS => ‘3‘, COMPRESSION => ‘NONE‘,TTL
=> ‘2147483647‘, BLOCKSIZE => ‘65536‘, IN_MEMORY => ‘fa
lse‘, BLOCKCACHE => ‘true‘}, {NAME =>‘info‘,
BLOOMFILTER => ‘NONE‘, REPLICATION_SCOPE => ‘0‘, VERSI
ONS => ‘3‘, COMPRESSION => ‘NONE‘, TTL=> ‘2147483647‘,
BLOCKSIZE => ‘65536‘, IN_MEMORY => ‘false‘,
BLOCKCACHE => ‘true‘}]}
1 row(s) in 0.0230seconds
该列族已经删除，我们继续将表enable
hbase(main):008:0> enable ‘member‘
0 row(s) in 2.0420seconds
4.列出所有的表
hbase(main):028:0>list
TABLE
member
temp_table
2 row(s) in 0.0150seconds
5.drop一个表
hbase(main):029:0>disable ‘temp_table‘
0 row(s) in 2.0590seconds
hbase(main):030:0>drop ‘temp_table‘
0 row(s) in 1.1070seconds
6.查询表是否存在
hbase(main):021:0>exists ‘member‘
Table member doesexist
0 row(s) in 0.1610seconds
7.判断表是否enable
hbase(main):034:0>is_enabled ‘member‘
true
0 row(s) in 0.0110seconds
8.判断表是否disable
hbase(main):032:0>is_disabled ‘member‘
false
0 row(s) in 0.0110seconds
三、DML操作
1.插入几条记录
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‘
2.获取一条数据
获取一个id的所有数据
hbase(main):001:0>get ‘member‘,‘scutshuxue‘
COLUMN CELL
address:city timestamp=1321586240244,
value=http://www.mamicode.com/hangzhou >
HBase Shell 常用命令及例子