Hbase基本命令
启动hbase：start-hbase.sh
停止hbase：stop-hbase.sh
进入hbase命令行端口：hbase shell
查看帮助信息：help
查看服务器状态：status
查看版本信息：version
查看当前用户：whoami
查看表相关命令的帮助信息：table_help
创建表
常用语法：create '[namespacename:]tablename' [ ,'columnfamilyname1' [ ,'columnfamilyname2, ....]]
详细语法使用help -create 查看create语句
hbase(main):006:0> create 'test','fam1','fam2' 0 row(s) in 8.3530 seconds => Hbase::Table – test
使用list命令列出表名：
常用语法：list '[namespacename:]tablename]
详细语法可以使用help 'list' 查看，list 后面可以跟正则表达式，列出符合表达式的表名
hbase(main):011:0> list 'test' –列出名为test的表名 TABLE test 1 row(s) in 0.0110 seconds => ["test"] hbase(main):012:0> list 'tes.*'—列出以名称tes开头的表名 TABLE test test:testtable 2 row(s) in 0.0150 seconds => ["test","test:testtable"] hbase(main):013:0> list 'default:.*' –列出default命名空间下的表名 TABLE ambarismoketest test 2 row(s) in 0.0150 seconds => ["ambarismoketest","test"] hbase(main):014:0> list 'test:.*' –列出test这个命名空间下的表名 TABLE test:testtable 1 row(s) in 0.0140 seconds => ["test:testtable"]
列出数据库名：list_namespace
hbase(main):002:0> list_namespace NAMESPACE default hbase 2 row(s) in 0.5620 seconds
使用desc命令查看指定表的具体信息（desc等同于describe）
语法：desc '[namespacename:]tablename'
describe '[namespacename:]tablename'
详细语法使用help 'describe'查看
hbase(main):016:0> desc 'test' 查看test这张表的信息 Table test is ENABLED test COLUMN FAMILIES DESCRIPTION {NAME => 'fam1', BLOOMFILTER =>'ROW', VERSIONS => '1', IN_MEMORY => 'false', KEEP_DELETED_CELLS =>'FALSE', DATA_BLOCK_ENCODING => 'NONE', TTL => 'FOREVER', COMPRE SSION => 'NONE', MIN_VERSIONS => '0',BLOCKCACHE => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE =>'0'} {NAME => 'fam2', BLOOMFILTER =>'ROW', VERSIONS => '1', IN_MEMORY => 'false', KEEP_DELETED_CELLS =>'FALSE', DATA_BLOCK_ENCODING => 'NONE', TTL => 'FOREVER', COMPRE SSION => 'NONE', MIN_VERSIONS => '0',BLOCKCACHE => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE =>'0'} 2 row(s) in 0.1710 seconds hbase(main):017:0> desc 'test:testtable'查看test命名空间下testtable这张表的信息 Table test:testtable is ENABLED test:testtable COLUMN FAMILIES DESCRIPTION {NAME => 'colfam1', BLOOMFILTER =>'ROW', VERSIONS => '1', IN_MEMORY => 'false', KEEP_DELETED_CELLS =>'FALSE', DATA_BLOCK_ENCODING => 'NONE', TTL => 'FOREVER', COM PRESSION => 'NONE', MIN_VERSIONS =>'0', BLOCKCACHE => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE =>'0'} {NAME => 'colfam2', BLOOMFILTER =>'ROW', VERSIONS => '1', IN_MEMORY => 'false', KEEP_DELETED_CELLS =>'FALSE', DATA_BLOCK_ENCODING => 'NONE', TTL => 'FOREVER', COM PRESSION => 'NONE', MIN_VERSIONS =>'0', BLOCKCACHE => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE =>'0'} {NAME => 'colfam3', BLOOMFILTER =>'ROW', VERSIONS => '1', IN_MEMORY => 'false', KEEP_DELETED_CELLS =>'FALSE', DATA_BLOCK_ENCODING => 'NONE', TTL => 'FOREVER', COM PRESSION => 'NONE', MIN_VERSIONS =>'0', BLOCKCACHE => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE =>'0'} 3 row(s) in 0.0290 seconds
使用put插入数据
常用语法：put '[namespacename:]tablename' , 'rowkey' , 'columnfamilyname[:column]' , 'value'
详细语法使用help 'put'查看
hbase(main):002:0> put'test','row2','fam1:a','value' 0 row(s) in 0.3760 seconds hbase(main):003:0> put 'test','row1','fam1:a','value' 0 row(s) in 0.3760 seconds hbase(main):004:0> put 'test','row1','fam2:a','value' 0 row(s) in 0.3760 seconds hbase(main):005:0> put'test','row2','fam2:a','value' 0 row(s) in 0.3760 seconds
使用scan查看全表数据
常用语法：scan '[namespacename:]tablename'
详细语法使用help 'scan'查看
hbase(main):002:0> scan 'test' ROW COLUMN+CELL row1 column=fam1:a, timestamp=1504767451331, value=value row1 column=fam2:a, timestamp=1504767471977, value=value row2 column=fam1:a, timestamp=1504767600686, value=value row2 column=fam2:a, timestamp=1504767715014, value=value 2 row(s) in 0.1120 seconds
查看指定列的数据：
hbase(main):004:0> scan 'test',{COLUMNS=> 'fam1:a'} ROW COLUMN+CELL row1 column=fam1:a, timestamp=1504767451331, value=value row2 column=fam1:a,timestamp=1504767600686, value=value 2 row(s) in 0.2390 seconds hbase(main):021:0> get 'test','row1' COLUMN CELL fam1:a timestamp=1504768075731, value=\x00\x00\x00\x00\x00\x00\x00\x02 fam2:a timestamp=1504767471977, value=value 2 row(s) in 0.1110 seconds
查看多个多个版本数据：get 'table1', 'rowkey007',{COLUMN=>'f1',VERSIONS=>2}
修改表的版本version数量：
alter 'table1',{NAME=>'f1',VERSIONS=>5}
使用get查询数据：
语法：get '[namespacename:]tablename' , 'rowkey' [, 'columnfamliyname[:column]']
详细语法使用help 'get'查看
hbase(main):024:0> get'test','row1','fam1' COLUMN CELL fam1:a timestamp=1504768075731, value=\x00\x00\x00\x00\x00\x00\x00\x02 1 row(s) in 0.0690 seconds hbase(main):026:0> get 'test','row1','fam1:a' COLUMN CELL fam1:a timestamp=1504768075731, value=\x00\x00\x00\x00\x00\x00\x00\x02 1 row(s) in 0.0430 seconds
使用delete删除数据
常用语法：delete '[namespacename:]tablename' , 'rowkey' , 'columnfamliyname:column'
当表中存在只制定了columnfamily没有具体制定column的数据时，delete可以这么用
delete '[namespacename:]tablename' , 'rowkey' , 'columnfamliyname',不存在这样的数据，使用这样的语句不会删除数据。
更详细的语法使用help 'delete'查看
hbase(main):008:0> delete'test','row1','fam1:a' 0 row(s) in 0.3370 seconds hbase(main):009:0> scan 'test' ROW COLUMN+CELL row1 column=fam2:a, timestamp=1504767471977, value=value row2 column=fam1:a, timestamp=1504767600686, value=value row2 column=fam2:a, timestamp=1504767715014, value=value 2 row(s) in 0.0850 seconds
使用incr增加数据（默认使用counter实现递增）
常用语法：incr '[namespacename:]tablename' , 'rowkey' , 'columnfamilyname:column'
更详细的语法使用help 'incr'查看
hbase(main):012:0> incr'test','row1','fam1:a' COUNTER VALUE = 1 0 row(s) in 1.1700 seconds hbase(main):013:0> scan 'test' ROW COLUMN+CELL row1 column=fam1:a,timestamp=1504768054892, value=\x00\x00\x00\x00\x00\x00\x00\x01 row1 column=fam2:a, timestamp=1504767471977, value=value row2 column=fam1:a, timestamp=1504767600686, value=value row2 column=fam2:a, timestamp=1504767715014,value=value 2 row(s) in 0.0410 seconds hbase(main):014:0> incr'test','row1','fam1:a' COUNTER VALUE = 2 0 row(s) in 0.0480 seconds hbase(main):015:0> scan 'test' ROW COLUMN+CELL row1 column=fam1:a, timestamp=1504768075731,value=\x00\x00\x00\x00\x00\x00\x00\x02 row1 column=fam2:a, timestamp=1504767471977, value=value row2 column=fam1:a, timestamp=1504767600686, value=value row2 column=fam2:a, timestamp=1504767715014, value=value 2 row(s) in 0.0770 seconds
使用get_counter查看当前的counter值：
hbase(main):027:0> get_counter'test','row1','fam1:a' COUNTER VALUE = 2
使用put更新数据：
hbase(main):029:0> scan 'test' ROW COLUMN+CELL row1 column=fam1:a, timestamp=1504768075731,value=\x00\x00\x00\x00\x00\x00\x00\x02 row1 column=fam2:a, timestamp=1504767471977, value=value row2 column=fam1:a, timestamp=1504767600686, value=value row2 column=fam2:a, timestamp=1504767715014, value=value 2 row(s) in 0.0270 seconds hbase(main):030:0> put'test','row1','fam1:a','newvalue' 0 row(s) in 0.0250 seconds hbase(main):031:0> scan 'test' ROW COLUMN+CELL row1 column=fam1:a, timestamp=1504768397480, value=newvalue row1 column=fam2:a, timestamp=1504767471977, value=value row2 column=fam1:a, timestamp=1504767600686, value=value row2 column=fam2:a, timestamp=1504767715014, value=value 2 row(s) in 0.0760 seconds
使用is_enabled/is_disabled查看表是否被启用/禁用
hbase(main):032:0> is_enable 'test' NoMethodError: undefined method `is_enable'for #<Object:0x15d114ce> hbase(main):033:0> is_enabled 'test' true 0 row(s) in 0.1180 seconds hbase(main):034:0> is_disabled 'test' false 0 row(s) in 0.0190 seconds
使用disable禁用表
hbase(main):001:0> disable 'test' 0 row(s) in 4.7170 seconds hbase(main):002:0> is_disabled 'test' true 0 row(s) in 0.0210 seconds
使用enbale启用表
hbase(main):003:0> enable 'test' 0 row(s) in 2.2910 seconds hbase(main):004:0> is_enabled 'test' true 0 row(s) in 0.0180 seconds
删除fam1这个columnfamily：
hbase(main):007:0> alter'test',{NAME=>'fam1',METHOD=>'delete'} Updating all regions with the new schema... 1/1 regions updated. Done. 0 row(s) in 2.1980 seconds hbase(main):008:0> desc 'test' Table test is ENABLED test COLUMN FAMILIES DESCRIPTION {NAME => 'fam2', BLOOMFILTER => 'ROW',VERSIONS => '1', IN_MEMORY => 'false', KEEP_DELETED_CELLS => 'FALSE',DATA_BLOCK_ENCODING => 'NONE', TTL => 'FOREVER', COMPRE SSION => 'NONE', MIN_VERSIONS => '0',BLOCKCACHE => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE =>'0'} 1 row(s) in 0.0350 seconds
清空表数据：
hbase(main):009:0> truncate 'test' Truncating 'test' table (it may take awhile): -Disabling table... -Truncating table... 0 row(s) in 3.6540 seconds hbase(main):010:0> scan 'test' ROW COLUMN+CELL 0 row(s) in 0.0460 seconds
删除表（必须先disable表才能drop表）:
hbase(main):011:0> disable 'test' 0 row(s) in 2.2680 seconds hbase(main):012:0> drop 'test' 0 row(s) in 1.2680 seconds hbase(main):014:0> list 'test' TABLE 0 row(s) in 0.0110 seconds => []
参考博客：
https://blog.csdn.net/weixin_34234721/article/details/89806302
