实时计算 Flink版checkpoint offset 的相关内容

阿里云文档 2025-02-18

Checkpoint与Savepoint

系统检查点（Checkpoint）和作业快照（Savepoint）统称为状态集。本文为您介绍如何管理作业的状态集，包括创建、查看、删除和从指定状态恢复。

文章 2024-05-19 来自：开发者社区

实时计算 Flink版操作报错合集之恢复 checkpoint 时报 "userVisibleTail should not be larger than offset" 错误如何解决

问题一：Flink CDC进行source的时候出现了EOF报错，有能指导一下从哪里排查吗？ Flink CDC使用postgres-cdc，进行source的时候出现了EOF报错，有大佬能指导一下从哪里排查吗？ ...

阿里云文档 2022-12-28

如何在Flink集群中配置OSS来存储Checkpoint和Savepoint

本文通过示例为您介绍如何在E-MapReduce on ACK的Flink集群中配置OSS来存储Flink作业的Checkpoint和Savepoint。

问答 2022-02-15 来自：开发者社区

flink不清理state，从checkpoint恢复任务能重置kafka的offset讨论

Hi everyone：如题，我遇到有些数据我不应该漏了想回溯部分数据，这个时候我就需要清理state，来重置kafka的offset重新跑，可不可以保留flink任务state，从checkpoint恢复任务的时候重置kafka的offset，并从kafka那个时间段开始消费，而不需要清掉state重新跑数据。*来自志愿者整理的flink邮件归档

问答 2021-12-07 来自：开发者社区

Flink使用Kafka作为source时checkpoint成功提交offset的机制

大家好，请教一个问题，当Flink在使用Kafka作为source，并且checkpoint开启时，提交的offset是在消息被链路最后一个算子处理之后才会把这条offset提交吗？还是说这个消息只要从Kafka source读取后，不论链路处理到哪个算子， checkpoint成功时就会把它的offset提交呢？另外有大神指路这段代码具体在哪个文件吗？谢谢！ -- Best Wis...

问答 2018-11-23 来自：开发者社区

想请教一个问题，，我禁用了flink的checkpoint，并指定了enable.auto.commit和auto.commit.interval.ms，并setStartFromSpecificOffsets，发现offset的自动提交不生效啊？

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更新时间 2024-05-20 11:16:26

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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

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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