[[["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)：2025-04-17。"],[[["Database Migration Service enables the migration of data to a Cloud SQL destination instance, with the ability to set up cascading read replicas."],["Cascading read replicas allow the creation of a read replica under another Cloud SQL read replica, supporting up to four levels, including the primary instance."],["To use cascading read replicas, you need to set `GTID_MODE` to `ON` on the source instance, as it is only supported for global transaction identifier (GTID)-based replication."],["Cascading read replicas can be set up once the migration job enters the change data capture (CDC) phase, after the initial full data dump."],["Promoting the Cloud SQL replica to a primary instance via the Database Migration Service maintains the existing cascading replica hierarchy."]]],[]]
