HBase命令行操作

来源：互联网发布：2015中国进口粮食数据编辑：程序博客网时间：2024/06/08 19:15
hbase(main):001:0> create 'user_info',{NAME=>'base_info',VERSIONS=>3},{NAME=>'extra_info'}hbase(main):001:0> put 'user_info' , 'rk001', 'base_info:id','1'hbase(main):001:0> put 'user_info' , 'rk0012', 'extra_info:id','2'hbase(main):003:0> scan 'user_info'ROW                                          COLUMN+CELL                                                                                                                     rk001                                       column=base_info:age, timestamp=1505295202965, value=20                                                                         rk001                                       column=base_info:id, timestamp=1505295152734, value=1                                                                           rk001                                       column=base_info:name, timestamp=1505295185522, value=zhangsan                                                                  rk0012                                      column=extra_info:id, timestamp=1505295331808, value=2                                                                         2 row(s) in 0.1900 seconds# 指定范围查询hbase(main):012:0> scan 'user_info',{LIMIT=>2,STARTROW=>'rk001'}ROW                                          COLUMN+CELL                                                                                                                     rk001                                       column=base_info:age, timestamp=1505295202965, value=20                                                                         rk001                                       column=base_info:id, timestamp=1505295152734, value=1                                                                           rk001                                       column=base_info:name, timestamp=1505295185522, value=zhangsan                                                                  rk0012                                      column=extra_info:id, timestamp=1505295331808, value=2                                                                         2 row(s) in 0.1520 seconds#hbase(main):016:0> get 'user_info','rk00010'COLUMN                                       CELL                                                                                                                            base_info:age                               timestamp=1505295754502, value=25                                                                                              1 row(s) in 0.1160 seconds#通过版本查询hbase(main):022:0> get 'user_info','rk001',{COLUMN=>'base_info:name',VERSIONS=>3}COLUMN                                       CELL                                                                                                                            base_info:name                              timestamp=1505296382971, value=liuliuliu                                                                                        base_info:name                              timestamp=1505295185522, value=zhangsan                                                                                        1 row(s) in 0.0610 seconds# 会在hdfs 目录/hbase/data上看到orderdbhbase(main):022:0> create_namespace 'orderdb'#查看名称空间hbase(main):025:0> list_namespaceNAMESPACE                                                                                                                                                                   default                                                                                                                                                                     hbase                                                                                                                                                                       orderdb                                                                                                                                                                     3 row(s) in 0.1230 seconds# 禁用表hbase(main):025:0> disable 'orderdb:t_order'# 删除指定名称空间的表hbase(main):029:0> drop 'orderdb:t_order'0 row(s) in 1.3760 seconds# 删除名称空间hbase(main):031:0> drop_namespace 'orderdb'0 row(s) in 0.9170 seconds
hdfs离开安全模式

hadoop dfsadmin -safemode leave
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