1、从MySQL导出到HDFS_Sqoop2开发指南_开发指南_托管Hadoop

帮助文档（华北一、二）

1.1 创建mysql数据

Mysql数据源以RDS为例。

连接Mysql,并创建数据库sqoop和表sqoop。

[root@uhadoop-******-master2 ~]# mysql -h10.13.124.35 -uroot -p'inspur' sqoop

mysql> create database sqoop;

Query OK, 1 row affected (0.00 sec)

mysql> use sqoop

Database changed

mysql> CREATE TABLE `sqoop` (

-> `id` varchar(64) DEFAULT NULL,

-> `value` varchar(64) NOT NULL DEFAULT '',

-> PRIMARY KEY (`id`)

-> ) ENGINE=InnoDB DEFAULT CHARSET=utf8;

Query OK, 0 rows affected (0.01 sec)

mysql> insert into sqoop values ('1', 'hha'),('2', 'zhang'),('3','hehe');

Query OK, 3 rows affected (0.00 sec)

Records: 3 Duplicates: 0 Warnings: 0

1.2 启动Sqoop2 CLI

uhadoop-******-master2节点上执行。

/home/hadoop/sqoop2/bin/sqoop.sh client

help可查到基本使用命令

sqoop:000> help

For information about Sqoop, visit: http://sqoop.apache.org/

Available commands:

exit (\x ) Exit the shell

history (\H ) Display, manage and recall edit-line history

help (\h ) Display this help message

set (\st ) Configure various client options and settings

show (\sh ) Display various objects and configuration options

create (\cr ) Create new object in Sqoop repository

delete (\d ) Delete existing object in Sqoop repository

update (\up ) Update objects in Sqoop repository

clone (\cl ) Create new object based on existing one

start (\sta) Start job

stop (\stp) Stop job

status (\stu) Display status of a job

enable (\en ) Enable object in Sqoop repository

disable (\di ) Disable object in Sqoop repository

For help on a specific command type: help command

1.3 查看connector

sqoop:000> show connector

1.4 创建mysql-link

sqoop:000> create link -c 4

Creating link for connector with id 4

Please fill following values to create new link object

Name: mysql-link

Link configuration

JDBC Driver Class: com.mysql.jdbc.Driver

JDBC Connection String: jdbc:mysql://10.13.124.35/sqoop

Username: root

Password: **********

JDBC Connection Properties:

There are currently 0 values in the map:

entry# protocol=tcp

There are currently 1 values in the map:

protocol = tcp

entry#

New link was successfully created with validation status OK and persistent id 1

1.5 创建hdfs-link

sqoop:000> create link -c 3

Creating link for connector with id 3

Please fill following values to create new link object

Name: hdfs-link

Link configuration

HDFS URI: hdfs://Ucluster/

New link was successfully created with validation status OK and persistent id 2

1.6 显示link

sqoop:000> show link

1.7 创建job

sqoop:000> create job -f 1 -t 2

Creating job for links with from id 1 and to id 2

Please fill following values to create new job object

Name: job-mysql-to-hdfs

From database configuration

Schema name: sqoop

Table name: sqoop

Table SQL statement:

Table column names:

Partition column name: id

Null value allowed for the partition column:

Boundary query:

ToJob configuration

Override null value:

Null value:

Output format:

0 : TEXT_FILE

1 : SEQUENCE_FILE

Choose: 0

Compression format:

0 : NONE

1 : DEFAULT

2 : DEFLATE

3 : GZIP

4 : BZIP2

5 : LZO

6 : LZ4

7 : SNAPPY

8 : CUSTOM

Choose: 0

Custom compression format:

Output directory: /tmp/sqoop

Throttling resources

Extractors: 1

Loaders: 1

New job was successfully created with validation status OK and persistent id 1

创建完job如下

sqoop:000> show job

1.8 启动job

sqoop:000> start job -j 1

Submission details

Job ID: 1

Server URL: http://localhost:12000/sqoop/

Created by: root

Creation date: 2016-12-22 14:40:10 CST

Lastly updated by: root

External ID: job_1481968387780_0011

http://uhadoop-penomi-

master1:23188/proxy/application_1481968387780_0011/

2016-12-22 14:40:10 CST: BOOTING - Progress is not available

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