[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC):2025-08-18。"],[[["\u003cp\u003eDatabase Migration Service enables the migration of data to a Cloud SQL destination instance, with the ability to set up cascading read replicas.\u003c/p\u003e\n"],["\u003cp\u003eCascading read replicas allow the creation of a read replica under another Cloud SQL read replica, supporting up to four levels, including the primary instance.\u003c/p\u003e\n"],["\u003cp\u003eTo use cascading read replicas, you need to set \u003ccode\u003eGTID_MODE\u003c/code\u003e to \u003ccode\u003eON\u003c/code\u003e on the source instance, as it is only supported for global transaction identifier (GTID)-based replication.\u003c/p\u003e\n"],["\u003cp\u003eCascading read replicas can be set up once the migration job enters the change data capture (CDC) phase, after the initial full data dump.\u003c/p\u003e\n"],["\u003cp\u003ePromoting the Cloud SQL replica to a primary instance via the Database Migration Service maintains the existing cascading replica hierarchy.\u003c/p\u003e\n"]]],[],null,[]]