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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。 如果为自建或其他云MySQL，请联系数据库运维工程师检查并调整目标数据库空间。 调整完成后，在任务列表中，单击任务对应操作列的“续传”，重新提交任务。 父主题：
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
全量或增量阶段失败报错，关键词“Initialize logical replication stream failed, the source database may have a long transaction” 场景描述 全量或增量同步期间DRS任务报错，同步日志界面提示：service
全量或增量阶段失败报错，关键词“Received error packet: errno - 1047, solstate - HY000 errmsg = Unknown command” 场景描述 全量或增量阶段，DRS迁移或同步任务报错，日志界面提示信息：service LOGMANAGER
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
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