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`%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。
by: [reason]:Failed to connect to database due to network, check the network between the DRS and the database or try again later.
存在约束不验证添加前数据 前源数据库的表存在特殊constraint类型,该constraint添加时仅对新数据进行约束检查,并不检查存量数据是否满足约束条件,所以源表可能存在部分数据不满足约束,部分数据满足约束的情况,目标数据库不支持这类constraint,要求所有数据均满足constraint
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。
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
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
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
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.
增量同步失败报错,关键词“PL/pgSQL function *** line *** at SQL statement” 场景描述 增量同步期间DRS任务报错,同步日志界面提示:service INCREMENT failed, cause by: insert %s failed
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
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。
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 CAPTURER failed, cause by: tbinlog parse fail, data dictionary may be not complete!
service LOGMANAGER failed, cause by: Initialize logical replication stream failed, the source database may have a long transaction: *** 可能原因
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: table=%s.
***.*** failed: Operation not allowed when innodb_force_recovery > 0.
全量或增量阶段失败报错,关键词“EOF Packet received, master disconnected” 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: *** failed, errorcode
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 全量或增量同步期间DRS任务报错,同步日志界面提示:service *** failed, cause by: Unable
unavailable.