HBase基础之常用过滤器hbase shell操作(转)

创建表

create 'test1', 'lf', 'sf'

lf: column family of LONG values (binary value)
-- sf: column family of STRING values

导入数据

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put 'test1', 'user1|ts1', 'sf:c1', 'sku1'
put 'test1', 'user1|ts2', 'sf:c1', 'sku188'
put 'test1', 'user1|ts3', 'sf:s1', 'sku123'

put 'test1', 'user2|ts4', 'sf:c1', 'sku2'
put 'test1', 'user2|ts5', 'sf:c2', 'sku288'
put 'test1', 'user2|ts6', 'sf:s1', 'sku222'
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一个用户(userX),在什么时间(tsX),作为rowkey

对什么产品(value:skuXXX),做了什么操作作为列名,比如,c1: click from homepage; c2: click from ad; s1: search from homepage; b1: buy

查询案例

谁的值=sku188

scan 'test1', FILTER=>"ValueFilter(=,'binary:sku188')"

ROW                          COLUMN+CELL                                                                       
 user1|ts2                   column=sf:c1, timestamp=1409122354918, value=sku188 

谁的值包含88

scan 'test1', FILTER=>"ValueFilter(=,'substring:88')"

ROW                          COLUMN+CELL                                                                       
 user1|ts2                   column=sf:c1, timestamp=1409122354918, value=sku188                               
 user2|ts5                   column=sf:c2, timestamp=1409122355030, value=sku288 

通过广告点击进来的(column为c2)值包含88的用户

scan 'test1', FILTER=>"ColumnPrefixFilter('c2') AND ValueFilter(=,'substring:88')"

ROW                          COLUMN+CELL                                                                       
 user2|ts5                   column=sf:c2, timestamp=1409122355030, value=sku288

通过搜索进来的(column为s)值包含123或者222的用户

scan 'test1', FILTER=>"ColumnPrefixFilter('s') AND ( ValueFilter(=,'substring:123') OR ValueFilter(=,'substring:222') )"

ROW                          COLUMN+CELL                                                                       
 user1|ts3                   column=sf:s1, timestamp=1409122354954, value=sku123                               
 user2|ts6                   column=sf:s1, timestamp=1409122355970, value=sku222

rowkey为user1开头的

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scan 'test1', FILTER => "PrefixFilter ('user1')"

ROW                          COLUMN+CELL                                                                       
 user1|ts1                   column=sf:c1, timestamp=1409122354868, value=sku1                                 
 user1|ts2                   column=sf:c1, timestamp=1409122354918, value=sku188                               
 user1|ts3                   column=sf:s1, timestamp=1409122354954, value=sku123
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FirstKeyOnlyFilter: 一个rowkey可以有多个version,同一个rowkey的同一个column也会有多个的值, 只拿出key中的第一个column的第一个version
KeyOnlyFilter: 只要key,不要value

scan 'test1', FILTER=>"FirstKeyOnlyFilter() AND ValueFilter(=,'binary:sku188') AND KeyOnlyFilter()"

ROW                          COLUMN+CELL                                                                       
 user1|ts2                   column=sf:c1, timestamp=1409122354918, value=  

从user1|ts2开始,找到所有的rowkey以user1开头的

scan 'test1', {STARTROW=>'user1|ts2', FILTER => "PrefixFilter ('user1')"}

ROW                          COLUMN+CELL                                                                       
 user1|ts2                   column=sf:c1, timestamp=1409122354918, value=sku188                               
 user1|ts3                   column=sf:s1, timestamp=1409122354954, value=sku123 

从user1|ts2开始,找到所有的到rowkey以user2开头

scan 'test1', {STARTROW=>'user1|ts2', STOPROW=>'user2'}

ROW                          COLUMN+CELL                                                                       
 user1|ts2                   column=sf:c1, timestamp=1409122354918, value=sku188                               
 user1|ts3                   column=sf:s1, timestamp=1409122354954, value=sku123

查询rowkey里面包含ts3的

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import org.apache.hadoop.hbase.filter.CompareFilter
import org.apache.hadoop.hbase.filter.SubstringComparator
import org.apache.hadoop.hbase.filter.RowFilter
scan 'test1', {FILTER => RowFilter.new(CompareFilter::CompareOp.valueOf('EQUAL'), SubstringComparator.new('ts3'))}

ROW                          COLUMN+CELL                                                                       
 user1|ts3                   column=sf:s1, timestamp=1409122354954, value=sku123 
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查询rowkey里面包含ts的

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import org.apache.hadoop.hbase.filter.CompareFilter
import org.apache.hadoop.hbase.filter.SubstringComparator
import org.apache.hadoop.hbase.filter.RowFilter
scan 'test1', {FILTER => RowFilter.new(CompareFilter::CompareOp.valueOf('EQUAL'), SubstringComparator.new('ts'))}

ROW                          COLUMN+CELL                                                                       
 user1|ts1                   column=sf:c1, timestamp=1409122354868, value=sku1                                 
 user1|ts2                   column=sf:c1, timestamp=1409122354918, value=sku188                               
 user1|ts3                   column=sf:s1, timestamp=1409122354954, value=sku123                               
 user2|ts4                   column=sf:c1, timestamp=1409122354998, value=sku2                                 
 user2|ts5                   column=sf:c2, timestamp=1409122355030, value=sku288                               
 user2|ts6                   column=sf:s1, timestamp=1409122355970, value=sku222  
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加入一条测试数据

put 'test1', 'user2|err', 'sf:s1', 'sku999'

查询rowkey里面以user开头的,新加入的测试数据并不符合正则表达式的规则,故查询不出来

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import org.apache.hadoop.hbase.filter.RegexStringComparator
import org.apache.hadoop.hbase.filter.CompareFilter
import org.apache.hadoop.hbase.filter.SubstringComparator
import org.apache.hadoop.hbase.filter.RowFilter
scan 'test1', {FILTER => RowFilter.new(CompareFilter::CompareOp.valueOf('EQUAL'),RegexStringComparator.new('^user\d+\|ts\d+$'))}

ROW                          COLUMN+CELL                                                                       
 user1|ts1                   column=sf:c1, timestamp=1409122354868, value=sku1                                 
 user1|ts2                   column=sf:c1, timestamp=1409122354918, value=sku188                               
 user1|ts3                   column=sf:s1, timestamp=1409122354954, value=sku123                               
 user2|ts4                   column=sf:c1, timestamp=1409122354998, value=sku2                                 
 user2|ts5                   column=sf:c2, timestamp=1409122355030, value=sku288                               
 user2|ts6                   column=sf:s1, timestamp=1409122355970, value=sku222  
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加入测试数据

put 'test1', 'user1|ts9', 'sf:b1', 'sku1'

b1开头的列中并且值为sku1的

scan 'test1', FILTER=>"ColumnPrefixFilter('b1') AND ValueFilter(=,'binary:sku1')"

ROW                          COLUMN+CELL                                                                       
 user1|ts9                   column=sf:b1, timestamp=1409124908668, value=sku1

SingleColumnValueFilter的使用,b1开头的列中并且值为sku1的

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import org.apache.hadoop.hbase.filter.CompareFilter
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter
import org.apache.hadoop.hbase.filter.SubstringComparator
scan 'test1', {COLUMNS => 'sf:b1', FILTER => SingleColumnValueFilter.new(Bytes.toBytes('sf'), Bytes.toBytes('b1'), CompareFilter::CompareOp.valueOf('EQUAL'), Bytes.toBytes('sku1'))}

ROW                          COLUMN+CELL                                                                       
 user1|ts9                   column=sf:b1, timestamp=1409124908668, value=sku1
posted @ 2018-09-27 10:48  Zeus~  阅读(2080)  评论(0编辑  收藏