DataX支持mysql8.X

简介：

DataX 是一个异构数据源离线同步工具，致力于实现包括关系型数据库(MySQL、Oracle等)、HDFS、Hive、ODPS、HBase、FTP等各种异构数据源之间稳定高效的数据同步功能。github地址： https://github.com/alibaba/DataX

1 注意部分

     目前dataX不支持mysql8.X,需要修改源码，修改的地方

• OriginalConfPretreatmentUtil类中引用的DataBaseType的追加参数，mysql8的zeroDateTimeBehavior=convertToNull修改为zeroDateTimeBehavior=CONVERT_TO_NULL

修改前：suffix = "yearIsDateType=false&zeroDateTimeBehavior=convertToNull&tinyInt1isBit=false&rewriteBatchedStatements=true";

修改后: suffix = "yearIsDateType=false&zeroDateTimeBehavior=CONVERT_TO_NULL&tinyInt1isBit=false&rewriteBatchedStatements=true";

    

• mysql驱动，在mysql reader和writer的pom文件修改为

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.11</version>
        </dependency>

• clean install 跳过测试
• 将reader和writer生成的target下面的datax的plugin拷贝到core工程项目和bin同级的plugin（源码生成是没有的,新建）

2 使用部分

• 目录级别

        

• json模板

{
    "job": {
        "setting": {
            "speed": {
                "byte":10485760
            },
            "errorLimit": {
                "record": 0,
                "percentage": 0.02
            }
        },
        "content": [
            {
                "reader": {
                    "name": "streamreader",
                    "parameter": {
                        "column" : [
                            {
                                "value": "DataX",
                                "type": "string"
                            },
                            {
                                "value": 19890604,
                                "type": "long"
                            },
                            {
                                "value": "1989-06-04 00:00:00",
                                "type": "date"
                            },
                            {
                                "value": true,
                                "type": "bool"
                            },
                            {
                                "value": "test",
                                "type": "bytes"
                            }
                        ],
                        "sliceRecordCount": 100000
                    }
                },
                "writer": {
                    "name": "streamwriter",
                    "parameter": {
                        "print": false,
                        "encoding": "UTF-8"
                    }
                }
            }
        ]
    }
}

• mysql示例json(github官网可以查看)

    MysqlReader插件文档

    MysqlWriter插件文档

{       

    "job": {
        "content": [

            {

                "reader": {

                    "name": "mysqlreader",

                    "parameter": {

                        "username": "root",

                        "password": "123456",

                        "column": ["id","name"],

                        "where": "id>0",
                        "connection": [
                            {
                                "table": [
                                    "user"
                                ],
                                "jdbcUrl": [
                                    "jdbc:mysql://47.101.137.97:3306/test1?serverTimezone=UTC"
                                ]
                            }
                        ]
                    }
                },
                "writer": {
                    "name": "mysqlwriter",
                    "parameter": {
                        "username": "root",
                        "password": "123456",
                        "column": ["id","name"],
                        "connection": [
                            {
                                "table": [
                                    "user"
                                ],
                                "jdbcUrl":"jdbc:mysql://47.101.137.97:3306/test2?serverTimezone=UTC"
                            }
                        ]
                    }
                }
            }
        ],
        "setting": {
                 "speed": {
                         "channel": 1,
                         "byte": 104857600
                 },
                 "errorLimit": {
                         "record": 10,
                         "percentage": 0.05
                 }
        }
    }
}

• 执行

进入到datax的bin目录（eg./Users/xuzhihui/test/backend/DataX-master/core/target/datax/bin）,然后执行

python datax.py ../job/test.json

• 结果