[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間：2025-08-18 (世界標準時間)。"],[[["\u003cp\u003eMigrations from Amazon Aurora MySQL sources without SUPERUSER privileges require specific adjustments to the migration process.\u003c/p\u003e\n"],["\u003cp\u003eSource hostnames longer than 60 characters require configuring a DNS redirect with a CNAME record.\u003c/p\u003e\n"],["\u003cp\u003eBinary logs must be stored on standard block storage, not Amazon S3, for migration jobs.\u003c/p\u003e\n"],["\u003cp\u003eFor initial full dumps, it is necessary to stop writes to the source MySQL Amazon Aurora database for around 20 seconds, using scripts to identify when to stop.\u003c/p\u003e\n"],["\u003cp\u003eDatabase Migration Service cannot migrate data from an Amazon Aurora read-only replica instance because it cannot retrieve binary log files from the instance.\u003c/p\u003e\n"]]],[],null,["# Migrating from Amazon Aurora MySQL without SUPERUSER privileges\n\n\u003cbr /\u003e\n\nWhen you create and run a migration job with an Amazon Aurora MySQL source or\nsources that don't allow SUPERUSER privileges, the migration can require additional steps.\n\nCreate the Amazon Aurora MySQL migration job\n--------------------------------------------\n\nMake sure you consider the following requirements and adjust your migration process:\n\n1. MySQL limits the source hostname definition to 60 characters. Amazon Aurora\n databases hostnames will typically be longer than 60 characters. If this\n is the case for the database you are migrating, configure\n a DNS redirect to create a\n [CNAME record](https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/resource-record-sets-choosing-alias-non-alias.html)\n that associates your domain name with the domain name of your Amazon Aurora\n database instance. For more information about setting up DNS CNAME, see the\n [Cloud DNS documentation](/dns/docs/set-up-dns-records-domain-name) or the\n [AWS Route53 documentation](https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/routing-to-rds-db.html).\n\n2. Binary logs must be stored on standard block storage and cannot be stored\n on Amazon S3.\n\n3. Creating a continuous migration job with a manual dump provided requires\n `GTID` to be enabled. `GTID_MODE` must be either\n \u003cvar translate=\"no\"\u003eON\u003c/var\u003e, \u003cvar translate=\"no\"\u003eOFF\u003c/var\u003e, or \u003cvar translate=\"no\"\u003eOFF_PERMISSIVE\u003c/var\u003e.\n The `GTID_MODE` value of \u003cvar translate=\"no\"\u003eON_PERMISSIVE\u003c/var\u003e isn't supported.\n\n4. To take the initial full dump, stop MySQL Amazon Aurora writes at the\n source database for approximately 20 seconds.\n\n5. Database Migration Service can't migrate data from an Amazon Aurora read-only replica instance of a MySQL database cluster because\n binary log files can't be retrieved from the instance. For more information, see the Amazon documentation about\n [configuring Aurora MySQL binary logging](https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/USER_LogAccess.MySQL.BinaryFormat.html).\n\nRun the migration job\n---------------------\n\nTo take the initial full dump, stop MySQL Amazon Aurora writes\nat the source database for approximately 20 seconds. You can use a script that [finds write activities](/database-migration/docs/mysql/debugging-tools#write-activities) to verify that all writing to the source database is stopped.\n\nIndication of when to stop and resume writes is in the status and substatus of\nthe migration job. The status changes can be tracked in the API, Console or\ndirectly in Cloud Monitoring:\n\n1. After the status changes to **Starting \\| Waiting for source writes to stop** ,\n writing should be stopped to the source database. Database Migration Service identifies that the writing stopped, and the status changes to **Running \\| Preparing the dump**.\n\n2. After the status changes to **Running \\| Full dump in progress**, it's safe\n to resume writing to the source database.\n\nDatabase Migration Service keeps trying to take the initial dump for approximately 20 minutes. If writes haven't been stopped, or if writes are resumed before the status update, then the process fails and returns an error describing the cause of the failure."]]
