大数据系列8：Sqoop – HADOOP和RDBMS数据交换


Sqoop1：

wget http://mirrors.ustc.edu.cn/apache/sqoop/1.4.4/sqoop-1.4.4.bin__hadoop-1.0.0.tar.gz

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

mv sqoop-1.4.4.bin__hadoop-1.0.0 sqoop-1.4.4

cd sqoop-1.4.4

sudo vi /etc/profile

增加：

export HADOOP_COMMON_HOME=/home/ysc/hadoop-1.2.1

export HADOOP_MAPRED_HOME=/home/ysc/hadoop-1.2.1

export PATH=$PATH:/home/ysc/sqoop-1.4.4/bin

export HBASE_HOME=/home/ysc/hbase-0.94.12

source /etc/profile

sqoop help

将JDBC驱动mysql-connector-java-5.1.18.jar拷贝到/home/ysc/sqoop-1.4.4/lib

sqoop list-databases --connect jdbc:mysql://host001 --username root --password ysc

sqoop list-tables --connect jdbc:mysql://host001/mysql --username root --password ysc

sqoop import --connect jdbc:mysql://host001/test --username root --password ysc --table person

sqoop import --connect jdbc:mysql://host001/test --username root --password ysc --table person -m 1

sqoop import --connect jdbc:mysql://host001/test --username root --password ysc --table person --direct -m 1

sqoop import-all-tables --connect jdbc:mysql://host001/test --username root --password ysc  --direct -m 1

sqoop export --connect jdbc:mysql://host001/test --username root --password ysc --table person --export-dir person

sqoop export --connect jdbc:mysql://host001/test --username root --password ysc --table animal --export-dir animal

Sqoop2：

wget http://mirror.bit.edu.cn/apache/sqoop/1.99.2/sqoop-1.99.2-bin-hadoop100.tar.gz

tar -xzvf sqoop-1.99.2-bin-hadoop100.tar.gz

mv sqoop-1.99.2-bin-hadoop100 sqoop-1.99.2

cd sqoop-1.99.2

sudo apt-get install zip

bin/addtowar.sh -hadoop-version 1.2.1 -hadoop-path /home/ysc/hadoop-1.2.1

bin/addtowar.sh -jars /home/ysc/mysql-connector-java-5.1.18.jar

vi server/conf/sqoop.properties

修改org.apache.sqoop.submission.engine.mapreduce.configuration.directory=/etc/hadoop/conf/为

org.apache.sqoop.submission.engine.mapreduce.configuration.directory=/home/ysc/hadoop-1.2.1/conf/

启动Sqoop 2 server：

bin/sqoop.sh server start

http://host001:12000/sqoop/

停止Sqoop 2 server：

bin/sqoop.sh server stop

客户端连接Sqoop 2 server：

客户端直接解压即可运行

MySQL准备数据库和表:

create database test;

create table history (userId int, command varchar(20));

insert into history values(1, 'ls');

insert into history values(1, 'dir');

insert into history values(2, 'cat');

insert into history values(5, 'vi');

交互模式：

bin/sqoop.sh client

sqoop:000> set server --host host001 --port 12000 --webapp sqoop

sqoop:000> show version --all

sqoop:000> show connector --all

sqoop:000>create connection --cid 1

Name: mysql

JDBC Driver Class: com.mysql.jdbc.Driver

JDBC Connection String:

jdbc:mysql://host001:3306/test?useUnicode=true&characterEncoding=UTF-8&createDatabaseIfNotExist=true&autoReconnect=true

Username: root

Password: ***

entry#回车

Max connections:100

sqoop:000>create job --xid 1 --type import

Name:ImportHistory

Schema name:

Table name: history

Table SQL statement:

Table column names:

Partition column name:userId

Boundary query:

Choose:0

Choose: 0

Output directory: output-sqoop2-history

Extractors:

Loaders:

sqoop:000> submission start --jid 1

sqoop:000> submission status --jid 1

sqoop:000> submission stop --jid 1

批处理模式：

sqoop.sh client /home/ysc/script.sqoop

vi /home/ysc/script.sqoop

输入：

     #指定服务器信息

     set server --host host001 --port 12000 --webapp sqoop

     #执行JOB

     submission start --jid 1

 

 

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