HBase Shell常用操作命令

1.查看命名空间如何使用

help 'namespace'

2.查看当前有哪些命名空间

list_namespace

3.创建一个命名空间

create_namespace 'ns1711'

4.创建表

create 'ns1711:t1','cf_info','cf_other'

5.添加数据

put 'ns1711:t1','rowkey01','cf_info:name','xiaowang'

6.查看所有表

list

7.浏览数据

scan 'ns1711:t1'
scan 't1',{
    
    LIMIT=>5}

8.查看指定列族和设置过滤器

scan 'ns1711:t1', {
    
    COLUMNS => ['cf_info','cf_other']}
scan 'ns1711:t1', {
    
    COLUMNS => 'cf_info:name'}
scan 'su_ott_terminal_overall_test',{
    
    FILTER=>"ValueFilter(=,'binary:103010202$100.00')"}
scan 'su_ott_terminal_overall_test', {
    
    COLUMNS => ['taginfo:oc_len','taginfo:oc_alive','taginfo:oc_hour_0'], FILTER => "(SingleColumnValueFilter('taginfo', 'oc_len', =, 'binary:103010103$100.0')) AND (SingleColumnValueFilter('taginfo', 'oc_alive', =, 'binary:103010202$100.0'))" }
scan 'hbase_contract', FILTER=>"ColumnPrefixFilter('executed_dt') AND ValueFilter(=,'substring:2021-05-03')"

9.查看单条数据

get 'ns1711:t1','rowkey02'  
get 'ns1711:t1','rowkey01',{
    
    COLUMN =>'cf_info'}
get 'ns1711:t1','rowkey02',{
    
    COLUMN => ['cf_info', 'cf_other']}
get 'ns1711:t1','rowkey01',{
    
    COLUMN => ['cf_info:name', 'cf_other:address']}

10.删除数据

delete 'ns1711:t1', 'rowkey01', 'cf_info:name'

11.删除表

disable 'ns1711:t1'
drop 'ns1711:t1'

12.查看表明细

desc 'su_ott_terminal_overall_test'

13.查询表中的数据行数

语法：count <table>, {INTERVAL => intervalNum, CACHE => cacheNum}
INTERVAL设置多少行显示一次及对应的rowkey，默认1000；CACHE每次去取的缓存区大小，默认是10，调整该参数可提高查询速度
例如，查询表t1中的行数，每100条显示一次，缓存区为500

hbase(main)> count 't1', {
    
    INTERVAL => 100, CACHE => 500}

14.创建Hbase预分区表

create 'su_ott_terminal_overall_test','taginfo', {
    
    SPLITS_FILE => 'region_split_lower_info.txt'}

15.克隆表
创建表H_DSE_TRACE的快照

snapshot 'H_DSE_TRACE' , 'SNAPSHOT_H_DSE_TRACE'

从快照克隆出一张新的表H_DSE_TRACE_2

clone_snapshot 'SNAPSHOT_H_DSE_TRACE','H_DSE_TRACE_2'

16.查看元数据

scan 'hbase:meta'

17.修复region元数据

hbase org.apache.hbase.HBCK2 assigns -o 1588230740

18.手动触发大合并

major_compact ‘hbase:meta’

19.hbase授权

grant 'worker', 'RW', 'dw:dm_cstm_gaotu_xxxxx_test'

权限用五个字母表示： “RWXCA”. READ(‘R’), WRITE(‘W’), EXEC(‘X’), CREATE(‘C’),
ADMIN(‘A’)

20.查看当前用户

whoami

21.查看表权限

user_permission tab_name

22.收回权限

revoke 'test','t1'

23.删除行

deleteall 't1','rowkey001'

24.移动region

语法：move ‘encodeRegionName’, ‘ServerName’
encodeRegionName指的regioName后面的编码，ServerName指的是master-status的RegionServers列表，例如：

hbase(main)>move '4343995a58be8e5bbc739af1e91cd72d', 'db-41.xxx.xxx.org,60020,1390274516739'

25.开启/关闭region

语法：balance_switch true|false

hbase(main)> balance_switch

HBase Shell常用操作命令

HBase Shell常用操作命令

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