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全量阶段失败报错,关键词“The MySQL server is running with the --super-read-only option so it cannot execute this statement” 场景描述 全量迁移或同步期间DRS任务报错,日志提示信息:service
--super-read-only option so it cannot execute this statement。 可能原因 目标库为只读状态,可能是目标库空间不足引起。 解决方案 调整目标库空间,恢复目标库为正常状态。 如果为RDS for MySQL,可参考RDS性能调优中的内容,或联系RDS客服调整目标库空间。
增量迁移失败报错,关键词“Timed out after 60000 ms while waiting for a server that matches com.mongodb.client.internal” 场景描述 MongoDB->DDS实时迁移场景,增量迁移报错,日志提示信息:service
long transaction: *** 可能原因 在源库创建逻辑复制槽失败。 解决方案 检查源库复制槽数量是否达到最大复制槽数的限制。如果是,建议删除源库不再使用的复制槽,或者增大max_replication_slots后重启源库。 查询逻辑复制槽数量: select count(1)
增量阶段失败报错,关键词“Slave has more GTIDs than the master has, using the master's SERVER_UUID.” 场景描述 增量迁移或同步期间DRS任务报错,日志提示信息:service LOGMANAGER failed
全量阶段失败报错,关键词“Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't
全量迁移失败报错,关键词“The background process is unavailable. Maybe it has been killed manually or by the operating system. Please restart the task if
全量或增量阶段失败报错,关键词“Illegal mix of collations (utf8mb4_0900_ai_ci,IMPLICIT) and (utf8mb4_general_ci,IMPLICIT) for operation” 场景描述 全量或增量阶段,DRS迁移或
全量阶段失败报错,关键词“Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received