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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.
对比任务报错，关键词“失败报错：service SDV failed!
unavailable.
全量或增量阶段失败报错，关键词“database log download failed” 场景描述 全量或增量阶段，DRS迁移或同步任务报错，日志提示信息：service LOGMANAGER failed, cause by: database log download failed
增量迁移失败报错，关键词“Command failed with error *** (***):***.
]:Failed to connect to database due to network, check the network between the DRS and the database or try again later.
by: [reason]:Failed to connect to database due to network, check the network between the DRS and the database or try again later.
增量阶段失败报错，关键词“current serverUUID not equals to this session” 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 INCREMENT failed, cause by: write table %s failed
可能原因 目标库创建索引时，需要的内存大于数据库配置maintenance_work_mem的大小。 解决方案 参考修改实例参数内容，修改目标数据库RDS for PostgreSQL配置参数maintenance_work_mem至合适值。
`%s ` failed: Lock wait timeout exceeded; try restarting transaction。 可能原因 目标库有客户业务连接长时间持有锁。 目标库性能不足或负载较大执行较慢。
service LOGMANAGER failed, cause by: Initialize logical replication stream failed, the source database may have a long transaction: *** 可能原因
unavailable.
or try again later.
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 DATAMOVE failed
备份迁移失败，提示备份校验文件失败 操作场景 客户创建备份迁移任务报错：Failed to obtain the restoration file information。 问题分析 备份文件损坏或者不完整，备份文件校验失败。
with PK applied failed in table %s, Deadlock found when trying to get lock; try restarting transaction 可能原因 目标库发生死锁。
全量或增量阶段失败报错，关键词“temporary file size exceeds temp_file_limit” 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：retry structures failed events=the fail structures
全量或增量阶段失败报错，关键词“service *** failed, cause by: Unable to connect to DBMS: ***” 场景描述 全量或增量阶段，DRS迁移或同步任务报错，日志提示信息：service *** failed, cause by:
全量阶段失败报错，关键字“Unknown collation: 'utf8mb4_0900_ai_ci'” 场景描述 全量迁移或同步期间DRS任务报错，日志提示信息：retry structures failed events=the fail structures are [type
全量或增量阶段失败报错，关键词“Extract db create sql failed” 场景描述 全量或增量阶段，DRS迁移或同步任务报错，日志提示信息：service LOGMANAGER failed, cause by: Extract db create sql failed
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