[[["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：2025-06-19 (世界標準時間)。"],[[["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."]]],[]]
