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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sta...

Flink ValueState<JSONObject> checkpoint失败，导致状态重置

问题想用flink 的valueState 加上ttl的特性来做中间状态的存储，但是发现假如直接用ValueState来保存中间状态是没问题的，但是假如加上TTL的特性之后checkpoint就失败了，导致无法使用。代码示例报错信息 debug 这个会不为2，导致checkpoint 失败，t...

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更新时间 2024-04-30 03:24:42

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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