命令行 · 大数据

[TOC] # 基本shell命令进入hbase命令行 ~~~ ./hbase shell ~~~ 帮助命令 ~~~ help ~~~ 查看是谁 ~~~ whoami ~~~ 查看状态 ~~~ status ~~~ 查看版本 ~~~ version ~~~ # 创建表 create帮助命令 ~~~ create ~~~ 创建表,2个列族,第二个指定版本 ~~~ create 't_user_info', {NAME => 'base_info'}, {NAME => 'extra_info',VERSIONS=>2} ~~~ 还可以指定region的个数和split的切分,在create帮助命令中查看查看表的描述 (enabled表示可用,NAME列族的信息,DATA_BLOCK_ENCODING块的编码,BLOOMFILTER布隆过滤器,REPLICATION_SCOPE对应的副本数,COMPRESSION是否压缩,MIN_VERSIONS最小的版本,TTL生命周期,KEEP_DELETED_CELLS删除数据是否保留,BLOCKSIZEblock块的大小,IN_MEMORY是否在内存,BLOCKCACHE块的缓存) ~~~ describe 't_user_info' ~~~ # 插入信息帮助命令 ~~~ put ~~~ 插入数据,row key是liu-20-001,base_info是列.后面name是表示符,值为liuyifei ~~~ put 't_user_info', 'liu-20-001','base_info:name','liuyifei' ~~~ ~~~ put 't_user_info','liu-20-001','extra_info:boyfriends','jdxia' put 't_user_info','liu-20-001','extra_info:boyfriends','jdxia1' ~~~ # 查询显示hbase中的表 ~~~ list ~~~ 查看插入的数据,全表扫描 ~~~ scan 't_user_info' ~~~ 根据row key的信息,查询 ~~~ get 't_user_info' , 'liu-20-001' ~~~ 根据row key,和列族的标示符查找 ~~~ get 't_user_info' , 'liu-20-001', 'base_info:name' ~~~ 根据版本查找 ~~~ get 't_user_info', 'liu-20-001',{COLUMN=>'extra_info:boyfriends',version=>4} ~~~ # 删除删除t_user_info表,liu-20-001这个row key中,base_info这个列族中标示符为name的值 ~~~ delete 't_user_info', 'liu-20-001','base_info:name' ~~~ 删除表,要先disable,然后才能删除 ~~~ disable 't_user_info' drop 't_user_info' ~~~ # 练习创建user表，包含info、data两个列族 ~~~ create 'user', 'info1', 'data1' create 'user', {NAME => 'info', VERSIONS => '3'} ~~~ 向user表中插入信息，row key为rk0001，列族info中添加name列标示符，值为zhangsan ~~~ put 'user', 'rk0001', 'info:name', 'zhangsan' ~~~ 向user表中插入信息，row key为rk0001，列族info中添加gender列标示符，值为female ~~~ put 'user', 'rk0001', 'info:gender', 'female' ~~~ 向user表中插入信息，row key为rk0001，列族info中添加age列标示符，值为20 ~~~ put 'user', 'rk0001', 'info:age', 20 ~~~ 向user表中插入信息，row key为rk0001，列族data中添加pic列标示符，值为picture ~~~ put 'user', 'rk0001', 'data:pic', 'picture' ~~~ 获取user表中row key为rk0001的所有信息 ~~~ get 'user', 'rk0001' ~~~ 获取user表中row key为rk0001，info列族的所有信息 ~~~ get 'user', 'rk0001', 'info' ~~~ 获取user表中row key为rk0001，info列族的name、age列标示符的信息 ~~~ get 'user', 'rk0001', 'info:name', 'info:age' ~~~ 获取user表中row key为rk0001，info、data列族的信息 ~~~ get 'user', 'rk0001', 'info', 'data' get 'user', 'rk0001', {COLUMN => ['info', 'data']} get 'user', 'rk0001', {COLUMN => ['info:name', 'data:pic']} ~~~ 获取user表中row key为rk0001，列族为info，版本号最新5个的信息 ~~~ get 'user', 'rk0001', {COLUMN => 'info', VERSIONS => 2} get 'user', 'rk0001', {COLUMN => 'info:name', VERSIONS => 5} get 'user', 'rk0001', {COLUMN => 'info:name', VERSIONS => 5, TIMERANGE => [1392368783980, 1392380169184]} ~~~ 获取user表中row key为rk0001，cell的值为zhangsan的信息 ~~~ get 'people', 'rk0001', {FILTER => "ValueFilter(=, 'binary:图片')"} ~~~ 获取user表中row key为rk0001，列标示符中含有a的信息 ~~~ get 'people', 'rk0001', {FILTER => "(QualifierFilter(=,'substring:a'))"} put 'user', 'rk0002', 'info:name', 'fanbingbing' put 'user', 'rk0002', 'info:gender', 'female' put 'user', 'rk0002', 'info:nationality', '中国' get 'user', 'rk0002', {FILTER => "ValueFilter(=, 'binary:中国')"} ~~~ 查询user表中的所有信息 ~~~ scan 'user' ~~~ 查询user表中列族为info的信息 ~~~ scan 'user', {COLUMNS => 'info'} scan 'user', {COLUMNS => 'info', RAW => true, VERSIONS => 5} scan 'persion', {COLUMNS => 'info', RAW => true, VERSIONS => 3} ~~~ 查询user表中列族为info和data的信息 ~~~ scan 'user', {COLUMNS => ['info', 'data']} scan 'user', {COLUMNS => ['info:name', 'data:pic']} ~~~ 查询user表中列族为info、列标示符为name的信息 ~~~ scan 'user', {COLUMNS => 'info:name'} ~~~ 查询user表中列族为info、列标示符为name的信息,并且版本最新的5个 ~~~ scan 'user', {COLUMNS => 'info:name', VERSIONS => 5} ~~~ 查询user表中列族为info和data且列标示符中含有a字符的信息 ~~~ scan 'user', {COLUMNS => ['info', 'data'], FILTER => "(QualifierFilter(=,'substring:a'))"} ~~~ 查询user表中列族为info，rk范围是`[rk0001, rk0003)的数据` ~~~ scan 'people', {COLUMNS => 'info', STARTROW => 'rk0001', ENDROW => 'rk0003'} ~~~ 查询user表中row key以rk字符开头的 ~~~ scan 'user',{FILTER=>"PrefixFilter('rk')"} ~~~ 查询user表中指定范围的数据 ~~~ scan 'user', {TIMERANGE => [1392368783980, 1392380169184]} ~~~ 删除数据删除user表row key为rk0001，列标示符为`info:name的数据` ~~~ delete 'people', 'rk0001', 'info:name' ~~~ 删除user表row key为rk0001，列标示符为`info:name，timestamp为1392383705316的数据` ~~~ delete 'user', 'rk0001', 'info:name', 1392383705316 ~~~ 清空user表中的数据 ~~~ truncate 'people' ~~~ 修改表结构首先停用user表（新版本不用） ~~~ disable 'user' ~~~ 添加两个列族f1和f2 ~~~ alter 'people', NAME => 'f1' alter 'user', NAME => 'f2' ~~~ 启用表 ~~~ enable 'user' ~~~ ###disable 'user'(新版本不用) 删除一个列族： ~~~ alter 'user', NAME => 'f1', METHOD => 'delete' 或 alter 'user', 'delete' => 'f1' ~~~ 添加列族f1同时删除列族f2 ~~~ alter 'user', {NAME => 'f1'}, {NAME => 'f2', METHOD => 'delete'} ~~~ 将user表的f1列族版本号改为5 ~~~ alter 'people', NAME => 'info', VERSIONS => 5 ~~~ 启用表 ~~~ enable 'user' ~~~ 删除表 ~~~ disable 'user' drop 'user' get 'person', 'rk0001', {FILTER => "ValueFilter(=, 'binary:中国')"} get 'person', 'rk0001', {FILTER => "(QualifierFilter(=,'substring:a'))"} scan 'person', {COLUMNS => 'info:name'} scan 'person', {COLUMNS => ['info', 'data'], FILTER => "(QualifierFilter(=,'substring:a'))"} scan 'person', {COLUMNS => 'info', STARTROW => 'rk0001', ENDROW => 'rk0003'} scan 'person', {COLUMNS => 'info', STARTROW => '20140201', ENDROW => '20140301'} scan 'person', {COLUMNS => 'info:name', TIMERANGE => [1395978233636, 1395987769587]} delete 'person', 'rk0001', 'info:name' alter 'person', NAME => 'ffff' alter 'person', NAME => 'info', VERSIONS => 10 get 'user', 'rk0002', {COLUMN => ['info:name', 'data:pic']} ~~~