实时计算 Flink版回滚的相关内容

问答 2024-04-26 来自：开发者社区

Flink CDC里如果sink的并行度是2，其中一个sink失败了怎么保证extract ？

Flink CDC里如果sink的并行度是2，其中一个sink失败了，怎么保证extract once？2个sink属于同一个事务还是两个独立的事务？如果是独立的事务，重试时source会重新抽了，会不会有重复数据写入sink了？两阶段提交是指某个sink里还是所有sink一起成功才成功，否则所有sink一起回滚吗？

问答 2023-11-22 来自：开发者社区

Flink CDC有什么办法或者什么方法可以回滚这种操作之类的吗？

Flink CDC我现在有个这个场景就是监听mysql读出来的数据我会落库到日志表中，但是如果这条数据因为网络原因反正各种原因抛出了异常，虽然有重新执行机制但是有次数限制，打比方3次执行完3次都异常然后监听会停止，这个时候我重新启动监听，那么他不会读我异常的这条数据，而是继续读取新的数据，这样就永远丢失这条数据了，有什么办法或者什么方法可以回滚这种操作之类的吗？

问答 2023-11-01 来自：开发者社区

flink-sqlserver-cdc-2.4.0 ，回滚到 2.3.0 版本，就没有问题，为什么？

flink-sqlserver-cdc-2.4.0 ，采用的默认的配置'scan.startup.mode' = 'initial'，只能完成之前的全量数据，增量数据不能同步，但是配置为latest-offset，是可以获取增量数据的。回滚到 2.3.0 版本，initial 就没有问题，sqlserver 版本 2017？

问答 2023-01-15 来自：开发者社区

对于Flink CDC，有没其他办法latest动态加表能刷新schema信息能回滚？

2.3.0 MySQL cdc回滚数据的时候，启动模式timestamp和specialoffset都会存在报schema change的异常而回滚不了，latest存在动态加表不能回滚问题，initial虽然能动态加班，但每次都是全量抽，就很难搞了，有没其他办法latest动态加表能刷新schema信息能回滚？

问答 2022-11-05 来自：开发者社区

大佬们，Flink cdc 抽MySQL，回滚到之前的checkpoint的时候，之前的tablel

大佬们，Flink cdc 抽MySQL，回滚到之前的checkpoint的时候，之前的tablelist会不起作用吗，就是不会按这个过滤表？

问答 2022-11-05 来自：开发者社区

，Flink cdc 抽MySQL，回滚到之前的checkpoint的时候，之前的tablelist

，Flink cdc 抽MySQL，回滚到之前的checkpoint的时候，之前的tablelist会不起作用吗，就是不会按这个过滤表？

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更新时间 2024-09-09 10:04:45

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实时计算Flink版

阿里云实时计算Flink版(Alibaba Cloud Realtime Compute)，完全兼容开源的Apache Flink，比开源性能提升2～3倍，提供了完整的告警、监控、日志的解决方案、提升开发效率且无运维成本，并有社区专家提供技术支持。

立即开通

产品控制台

产品文档

实时同步

MySQL 到 Hologres

Kafka 到 Hologres

功能对比

开源Flink对比

成本优化

作业自动调优