HBase数据快速导入之ImportTsv&Bulkload

1.SHELL方式
#创建表：
create 'testImport1','cf'

#准备文件
[hadoop@master test]$ more sample1.csv
1,"tom"
2,"sam"
3,"jerry"
4,"marry"
5,"john

#上传到hadoop文件系统上
hadoop fs -put sample1.csv  /home/hadoop/test/

#导入到表里（时间有点久）
hbase org.apache.hadoop.hbase.mapreduce.ImportTsv -Dimporttsv.separator="," -Dimporttsv.columns=HBASE_ROW_KEY,cf testImport1 /home/hadoop/test/sample1.csv


#查看导入到表里
hbase(main):066:0> scan 'testImport1'
ROW                                        COLUMN+CELL                                                                                                                 
 1                                         column=cf:, timestamp=1548370307097, value="tom"                                                                            
 2                                         column=cf:, timestamp=1548370307097, value="sam"                                                                            
 3                                         column=cf:, timestamp=1548370307097, value="jerry"                                                                          
 4                                         column=cf:, timestamp=1548370307097, value="marry"                                                                          
 5                                         column=cf:, timestamp=1548370307097, value="john 

2.先通过ImportTsv生产HFile文件，再通过completeBulkload导入HBase

create 'testImport2','cf'

#使用命令生产HFile文件
hbase org.apache.hadoop.hbase.mapreduce.ImportTsv -Dimporttsv.separator="," -Dimporttsv.bulk.output=hfile_tmp -Dimporttsv.columns=HBASE_ROW_KEY,cf testImport2 /home/hadoop/test/sample1.csv

#生成的中间结果集
[hadoop@master test]$ hadoop fs -ls /user/hadoop/hfile_tmp/cf                                  
Found 1 items
-rw-r--r--   3 hadoop supergroup       5179 2019-01-24 15:09 /user/hadoop/hfile_tmp/cf/7ce1f217dd9e401bab3773938bd410c4


使用命令将HFile文件导入HBase
hadoop jar /home/hadoop/hbase/lib/hbase-server-1.4.9.jar completebulkload hfile_tmp testImport2

在执行这个命令之前，需要把HBASE下lib下的jar包拷贝到hadoop下：
cp * /home/hadoop/hadoop-2.7.3/share/hadoop/common/lib/

验证查看：
hbase(main):081:0*  scan 'testImport2'
ROW                                        COLUMN+CELL                                                                                                                 
 1                                         column=cf:, timestamp=1548370987951, value="tom"                                                                            
 2                                         column=cf:, timestamp=1548370987951, value="sam"                                                                            
 3                                         column=cf:, timestamp=1548370987951, value="jerry"                                                                          
 4                                         column=cf:, timestamp=1548370987951, value="marry"                                                                          
 5                                         column=cf:, timestamp=1548370987951, value="john                                                                            
5 row(s) in 0.0740 seconds

完。