AWS数据库迁移服务

接入教程

1. 在AWS控制台创建DMS实例
2. 配置源和目标数据库连接
3. 定义迁移任务并选择数据
4. 启动迁移并监控进度
5. 验证迁移结果并完成

使用Python创建AWS DMS迁移任务

python

import boto3

client = boto3.client('dms', region_name='us-east-1')

response = client.create_replication_task(
    ReplicationTaskIdentifier='sample-migration-task',
    SourceEndpointArn='arn:aws:dms:us-east-1:123456789012:endpoint:SOURCE_ENDPOINT',
    TargetEndpointArn='arn:aws:dms:us-east-1:123456789012:endpoint:TARGET_ENDPOINT',
    ReplicationInstanceArn='arn:aws:dms:us-east-1:123456789012:rep:REPLICATION_INSTANCE',
    MigrationType='full-load',
    TableMappings='{"rules":[{"rule-type":"selection","rule-id":"1","rule-name":"1","object-locator":{"schema-name":"%","table-name":"%"},"rule-action":"include"}]}',
    ReplicationTaskSettings='{"TargetMetadata":{"TargetSchema":"","SupportLobs":true,"FullLobMode":false,"LobChunkSize":64,"LimitedSizeLobMode":true,"LobMaxSize":32}}'
)

print(f"Task created: {response['ReplicationTask']['ReplicationTaskArn']}")

使用PHP启动AWS DMS复制任务

php

<?php
require 'vendor/autoload.php';

use Aws\Dms\DmsClient;
use Aws\Exception\AwsException;

$client = new DmsClient([
    'region'  => 'us-east-1',
    'version' => 'latest'
]);

try {
    $result = $client->startReplicationTask([
        'ReplicationTaskArn' => 'arn:aws:dms:us-east-1:123456789012:task:TASK_ARN',
        'StartReplicationTaskType' => 'start-replication'
    ]);
    
    echo "Task started: " . $result['ReplicationTask']['Status'] . "\n";
} catch (AwsException $e) {
    echo "Error: " . $e->getMessage() . "\n";
}
?>

使用JavaScript测试AWS DMS端点连接

javascript

const AWS = require('aws-sdk');

AWS.config.update({region: 'us-east-1'});
const dms = new AWS.DMS();

const params = {
    EndpointArn: 'arn:aws:dms:us-east-1:123456789012:endpoint:ENDPOINT_ARN'
};

dms.testConnection(params, function(err, data) {
    if (err) {
        console.log("Error testing connection:", err);
    } else {
        console.log("Connection test result:", data.Connection.Status);
    }
});

常见问题

AWS DMS支持哪些类型的数据库迁移？

AWS DMS支持多种商业和开源数据库的迁移，包括Oracle、PostgreSQL、Microsoft SQL Server、Amazon Redshift、MariaDB、Amazon Aurora、MySQL和SAP Adaptive Server等。支持同构和异构数据库之间的迁移。

使用AWS DMS API需要哪些权限？

使用AWS DMS API需要配置适当的IAM权限，包括dms:CreateReplicationTask、dms:StartReplicationTask、dms:DescribeEndpoints等操作权限，以及对相关AWS资源（如RDS实例、S3存储桶）的访问权限。

如何监控AWS DMS迁移任务的进度？

可以通过DescribeReplicationTasks API获取任务状态，或使用CloudWatch监控迁移指标。DMS提供详细的日志输出到CloudWatch Logs，可实时监控数据迁移进度和性能指标。