1. Sqoop를 다운받아 압축을 푼다

   *다운로드 받을 라이브러리가 사용하려는 하둡의 메이저 버전과 대응 되는지 확인 필요
   wget http://mirror.apache-kr.org/sqoop/1.4.4/sqoop-1.4.4.bin__hadoop-1.0.0.tar.gz

   * hadoop2의 경우는 sqoop-1.4.6.bin__hadoop-2.0.4-alpha.tar.gz를 받아서 사용할것..

   tar zxvf sqoop-1.4.4.bin__hadoop-1.0.0.tar.gz

   ln -s sqoop-1.4.4.bin__hadoop-1.0.0. sqoop

2. Sqoop환경변수 설정

   vi  ~/.bashrc
   export SQOOP_HOME=/home/hadoop/sqoop
   export SQOOP_CONF_DIR=/home/hadoop/sqoop/conf

   export PATH=$PATH:$SQOOP_HOME/bin
   

   변경사항 반영
   source .bashrc

2-1. sqoop lib디렉토리 설정

   hadoop의 share디렉토리 밑에 있는 lib파일및 폴더를 모두 sqoop의 lib디렉토리 밑으로 복사한다.

3. Sqoop 환경설정

   cd $SQOOP_HOME/conf
   cp sqoop-env-template.sh sqoop-env.sh
   vi sqoop-env.sh

------------------------------------------------------------
# Set Hadoop-specific environment variables here.

#Set path to where bin/hadoop is available
export HADOOP_COMMON_HOME=/home/hadoop/hadoop

#Set path to where hadoop-*-core.jar is available
export HADOOP_MAPRED_HOME=/home/hadoop/hadoop/lib

#set the path to where bin/hbase is available
export HBASE_HOME=/home/hadoop/hbase

#Set the path to where bin/hive is available
export HIVE_HOME=/home/hadoop/hive

#Set the path for where zookeper config dir is
export ZOOCFGDIR=/home/hadoop/zookeeper/conf
----------------------------------------------------------

sqoop기동 확인

hadoop@bigdata-host:~/sqoop/conf$ sqoop
Warning: /usr/lib/hcatalog does not exist! HCatalog jobs will fail.
Please set $HCAT_HOME to the root of your HCatalog installation.
/home/hadoop/sqoop/bin/sqoop: line 101: /home/hadoop/hadoop/bin/bin/hadoop: No such file or directory

이 발생하게 되면 sqoop설치 디렉토리에 있는 sqoop-1.4.4.jar를 hadoop/lib에 복사한다.

4. 테스트(mysql)
 
   1) mysql jdbc 드라이버 설치
      http://dev.mysql.com/downloads/connector/j/

      tar zxvf mysql-connector-java-5.1.26.tar.gz
      cp mysql-connector-java-5.1.26/mysql-connector-java-5.1.26-bin.jar $SQOOP_HOME/lib
 
      * mysql에 bigdata계정 설정 및 sqoop테스트용 database생성 및 할당
      mysql -u root (암호 걸려있을 경우 -p)
      (암호 있을경우 입력)
      CREATE USER 'bigdata'@'localhost';
      create database sqoop_test;
      GRANT ALL PRIVILEGES ON sqoop_test.* TO 'bigdata'@'localhost';

   2) sqoop테스트용 테이블 생성 및 example데이터 입력
      mysql -u bigdata
      use sqoop_test;
      create table employee(id INT, name VARCHAR(20));       --import 테스트
      INSERT INTO employee(id,name) VALUES(1, "kim");
      INSERT INTO employee(id,name) VALUES(2, "lee");
      INSERT INTO employee(id,name) VALUES(3, "park");
      create table employee_ex(id INT, name VARCHAR(20));  --export 테스트

   3) hadoop 기동
      start-all.sh

   4) import 테스트(mysql에서 hdoop으로 저장)
      sqoop import --connect jdbc:mysql://localhost/sqoop_test --table employee --username bigdata -m 1

      =====>hadoop에서 확인<============

hadoop@bigdata-host:~/sqoop$ hadoop fs -lsr employee
-rw-r--r--   1 hadoop supergroup          0 2014-04-21 17:34 /user/hadoop/employee/_SUCCESS
drwxr-xr-x   - hadoop supergroup          0 2014-04-21 17:34 /user/hadoop/employee/_logs
drwxr-xr-x   - hadoop supergroup          0 2014-04-21 17:34 /user/hadoop/employee/_logs/history
-rw-r--r--   1 hadoop supergroup       9165 2014-04-21 17:34 /user/hadoop/employee/_logs/history/job_201404211042_0001_1398069253093_hadoop_employee.jar
-rw-r--r--   1 hadoop supergroup      59274 2014-04-21 17:34 /user/hadoop/employee/_logs/history/job_201404211042_0001_conf.xml
-rw-r--r--   1 hadoop supergroup         19 2014-04-21 17:34 /user/hadoop/employee/part-m-00000
hadoop@bigdata-host:~/sqoop$ hadoop fs -cat employee/part-m-00000
1,kim
2,lee
3,park
------------------------------------------

   5) export 테스트(hadoop에서 mysql의 테이블에 저장)
      sqoop export -connect jdbc:mysql://localhost/sqoop_test -table employee_ex -export-dir employee --username bigdata -m 1

5. postgresql

가. cp postgresql-9.3-1103.jdbc4.jar $SQOOP_HOME/lib

나.[hadoop@master]$ sqoop list-databases --connect jdbc:postgresql://node1:5432/hive_db --username hive_user --password hive_pass

Warning: /hadoop/sqoop/../hcatalog does not exist! HCatalog jobs will fail.

Please set $HCAT_HOME to the root of your HCatalog installation.

Warning: /hadoop/sqoop/../accumulo does not exist! Accumulo imports will fail.

Please set $ACCUMULO_HOME to the root of your Accumulo installation.

15/05/21 13:42:36 INFO sqoop.Sqoop: Running Sqoop version: 1.4.6

15/05/21 13:42:36 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead.

15/05/21 13:42:36 INFO manager.SqlManager: Using default fetchSize of 1000

template1

template0

postgres

psmgdb

hive_db

oozie_db