sqoop是一个把关系型数据库数据抽向hadoop的工具。同时，也支持将hive、pig等查询的结果导入关系型数据库中存储。
由于，笔者部署的hadoop版本是2.2.0，所以sqoop的版本是：sqoop-1.99.3-bin-hadoop200
1、下载sqoop  wget  http://mirrors.cnnic.cn/apache/sqoop/1.99.3/sqoop-1.99.3-bin-hadoop200.tar.gz
2、解压sqoop安装文件  tar -zxvf sqoop-1.99.3-bin-hadoop200.tar.gz
3、配置sqoop环境变量
  export SQOOP_HOME=/home/likehua/sqoop/sqoop
  export PATH = $SQOOP_HOME/bin:$PATH
  修改sqoop——server关于hadoop共享jar的引用
  vi server/conf/catalina.properties
  找到common.loader行，把/usr/lib/hadoop/lib/*.jar改成你的hadoop jar 包目录
例如:/home/hadoop/hadoop/share/hadoop/yarn/lib/*.jar,
/home/hadoop/hadoop/share/hadoop/yarn/*.jar,
/home/hadoop/hadoop/share/hadoop/hdfs/*.jar,
/home/hadoop/hadoop/share/hadoop/hdfs/lib/*.jar,
/home/hadoop/hadoop/share/hadoop/mapreduce/*.jar,
/home/hadoop/hadoop/share/hadoop/mapreduce/lib/*.jar,
/home/hadoop/hadoop/share/hadoop/common/lib/*.jar,
/home/hadoop/hadoop/share/hadoop/common/*.jar
  vi server/conf/sqoop.properties
找到：mapreduce.configuration.directory行，修改值为你的hadoop配置文件目录
如：/home/likehua/hadoop/hadoop/etc/hadoop
并且替换@LOGDIR@ 和@BASEDIR@ ：
0,$ s/@LOGDIR@/logs/g
0,$ s/@BASEDIR@/base/g

然后找到你的数据库jdbc驱动复制到sqoop/lib目录下，如果不存在则创建.

 vi /etc/profile

增加以下内容：

export SQOOP_HOME=/home/hadoop/sqoop

export PATH=$PATH:$SQOOP_HOME/bin

export CATALINA_BASE=$SQOOP_HOME/server

export LOGDIR=$SQOOP_HOME/logs/
 

启动 [root@db12c sqoop]# ./bin/sqoop.sh server start
Sqoop home directory: /home/likehua/sqoop/sqoop
Setting SQOOP_HTTP_PORT:     12000
Setting SQOOP_ADMIN_PORT:     12001
Using   CATALINA_OPTS:
Adding to CATALINA_OPTS:    -Dsqoop.http.port=12000 -Dsqoop.admin.port=12001
Using CATALINA_BASE:   /home/likehua/sqoop/sqoop/server
Using CATALINA_HOME:   /home/likehua/sqoop/sqoop/server
Using CATALINA_TMPDIR: /home/likehua/sqoop/sqoop/server/temp
Using JRE_HOME:        /usr/local/jdk1.7.0
Using CLASSPATH:       /home/likehua/sqoop/sqoop/server/bin/bootstrap.jar
(sqoop服务端是一个跑在tomcat上的服务程序)
关闭 sqoop server :./bin/sqoop.sh server stop
使用sqoop客户端：
[root@db12c sqoop]# bin/sqoop.sh client
Sqoop home directory: /home/likehua/sqoop/sqoop
Sqoop Shell: Type ‘help‘ or ‘\h‘ for help.

sqoop:000> show version --all#显示版本：show version --all显示连接器：show connector --all创建连接：create connection --cid 1

client version:
  Sqoop 1.99.3 revision 2404393160301df16a94716a3034e31b03e27b0b
  Compiled by mengweid on Fri Oct 18 14:15:53 EDT 2013
server version:
  Sqoop 1.99.3 revision 2404393160301df16a94716a3034e31b03e27b0b
  Compiled by mengweid on Fri Oct 18 14:15:53 EDT 2013
Protocol version:
  [1]
sqoop:000>