創(chuàng)建表
create 'test1', 'lf', 'sf'
lf: column family of LONG values (binary value)
-- sf: column family of STRING values
導入數據
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'
一個用戶（userX），在什么時間（tsX），作為rowkey
對什么產品（value：skuXXX），做了什么操作作為列名，比如，c1: click from homepage; c2: click from ad; s1: search from homepage; b1: buy
查詢案例
誰的值=sku188
scan 'test1', FILTER=>"ValueFilter(=,'binary:sku188')"
ROW COLUMN+CELL
user1|ts2 column=sf:c1, timestamp=1409122354918, value=sku188
誰的值包含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
通過廣告點擊進來的(column為c2)值包含88的用戶
scan 'test1', FILTER=>"ColumnPrefixFilter('c2') AND ValueFilter(=,'substring:88')"
ROW COLUMN+CELL
user2|ts5 column=sf:c2, timestamp=1409122355030, value=sku288
通過搜索進來的(column為s)值包含123或者222的用戶
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為user1開頭的
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
FirstKeyOnlyFilter: 一個rowkey可以有多個version,同一個rowkey的同一個column也會有多個的值, 只拿出key中的第一個column的第一個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=
從user1|ts2開始,找到所有的rowkey以user1開頭的
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
從user1|ts2開始,找到所有的到rowkey以user2開頭
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
查詢rowkey里面包含ts3的
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
查詢rowkey里面包含ts的
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
加入一條測試數據
put 'test1', 'user2|err', 'sf:s1', 'sku999'
查詢rowkey里面以user開頭的，新加入的測試數據并不符合正則表達式的規(guī)則，故查詢不出來
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+$'))}
ROW COLUMN+CELL
user1|ts1 column=sf:c1, timestamp=1409122354868, value=sku1
user1|ts2 column=sf:c1, timestamp=1409122354918, value=sku188
user1|ts3 column=sf:s1, timestamp=1409122354954, value=sku123
user2|ts4 column=sf:c1, timestamp=1409122354998, value=sku2
user2|ts5 column=sf:c2, timestamp=1409122355030, value=sku288
user2|ts6 column=sf:s1, timestamp=1409122355970, value=sku222
加入測試數據
put 'test1', 'user1|ts9', 'sf:b1', 'sku1'
b1開頭的列中并且值為sku1的
scan 'test1', FILTER=>"ColumnPrefixFilter('b1') AND ValueFilter(=,'binary:sku1')"
ROW COLUMN+CELL
user1|ts9 column=sf:b1, timestamp=1409124908668, value=sku1
SingleColumnValueFilter的使用，b1開頭的列中并且值為sku1的
import org.apache.hadoop.hbase.filter.CompareFilter
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter
import org.apache.hadoop.hbase.filter.SubstringComparator
scan 'test1', {COLUMNS => 'sf:b1', FILTER => SingleColumnValueFilter.new(Bytes.toBytes('sf'), Bytes.toBytes('b1'), CompareFilter::CompareOp.valueOf('EQUAL'), Bytes.toBytes('sku1'))}
ROW COLUMN+CELL
user1|ts9 column=sf:b1, timestamp=1409124908668, value=sku1
hbase zkcli 的使用
hbase zkcli
ls /
[hbase, zookeeper]
[zk: hadoop000:2181(CONNECTED) 1] ls /hbase
[meta-region-server, backup-masters, table, draining, region-in-transition, running, table-lock, master, namespace, hbaseid, online-snapshot, replication, splitWAL, recovering-regions, rs]
[zk: hadoop000:2181(CONNECTED) 2] ls /hbase/table
[member, test1, hbase:meta, hbase:namespace]
[zk: hadoop000:2181(CONNECTED) 3] ls /hbase/table/test1
[]
[zk: hadoop000:2181(CONNECTED) 4] get /hbase/table/test1
?master:60000}l$??lPBUF
cZxid = 0x107
ctime = Wed Aug 27 14:52:21 HKT 2014
mZxid = 0x10b
mtime = Wed Aug 27 14:52:22 HKT 2014
pZxid = 0x107
cversion = 0
dataVersion = 2
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 31
numChildren = 0
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作者：雷文昌
來源：CSDN
原文：https://blog.csdn.net/vaq37942/article/details/54949428
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