datax 使用

环境准备

• List item
• Linux
• JDK(1.8以上，推荐1.8)
• Python(2或3都可以)
• Apache Maven 3.x (Compile DataX)

下载

wget https://datax-opensource.oss-cn-hangzhou.aliyuncs.com/202308/datax.tar.gz

建立datax 用户

useradd datax ; echo "datax" | passwd --stdin datax;

上传至linux 解压

 tar -xzvf datax.tar.gz

测试是否可用

python /home/datax/datax/bin/datax.py /home/datax/datax/job/job.json

查看 Mysql 到Mysql 的模板

python /home/datax/datax/bin/datax.py -r mysqlreader -w mysqlwriter

返回

DataX (DATAX-OPENSOURCE-3.0), From Alibaba !
Copyright (C) 2010-2017, Alibaba Group. All Rights Reserved.


Please refer to the mysqlreader document:
     https://github.com/alibaba/DataX/blob/master/mysqlreader/doc/mysqlreader.md 

Please refer to the mysqlwriter document:
     https://github.com/alibaba/DataX/blob/master/mysqlwriter/doc/mysqlwriter.md 
 
Please save the following configuration as a json file and  use
     python {DATAX_HOME}/bin/datax.py {JSON_FILE_NAME}.json 
to run the job.

{
    "job": {
        "content": [
            {
                "reader": {
                    "name": "mysqlreader", 
                    "parameter": {
                        "column": [], 
                        "connection": [
                            {
                                "jdbcUrl": [], 
                                "table": []
                            }
                        ], 
                        "password": "", 
                        "username": "", 
                        "where": ""
                    }
                }, 
                "writer": {
                    "name": "mysqlwriter", 
                    "parameter": {
                        "column": [], 
                        "connection": [
                            {
                                "jdbcUrl": "", 
                                "table": []
                            }
                        ], 
                        "password": "", 
                        "preSql": [], 
                        "session": [], 
                        "username": "", 
                        "writeMode": ""
                    }
                }
            }
        ], 
        "setting": {
            "speed": {
                "channel": ""
            }
        }
    }
}

填写模板相印的信息
生成mysql2mysql.json

执行

python {DATAX_HOME}/bin/datax.py {JSON_FILE_NAME}.json 

注意 datax 只支持一张表的同步 ,如果有多表同步需求, 可以配置多个json, 一个json对一张表