Web本文将介绍Flink的Checkpoint机制的原理。本文会使用多个概念：快照（Snapshot）、分布式快照（Distributed Snapshot）、检查点（Checkpoint）等，这些概念均指的是Flink的Checkpoint机制，读者可 …

Flink 的状态保存和恢复 - 掘金 - 稀土掘金

http://shiyanjun.cn/archives/1855.html WebJun 29, 2024 · snapshotState method will be called by the Flink Job Operator every 30 seconds as configured.Method should return the value to be saved in state backend. restoreState method is called when the operator is restarting and this method is the handler method to set the last stored timestamp (state) during a checkpoint. Process Function … eastgate storage greenville nc

Checkpoints Apache Flink

WebCheckpointing # Every function and operator in Flink can be stateful (see working with state for details). Stateful functions store data across the processing of individual elements/events, making state a critical building block for any type of more elaborate operation. In order to make state fault tolerant, Flink needs to checkpoint the state. … Web与 savepoints 相似，checkpoint 由元数据文件、数据文件（与 state backend 相关）组成。. 可通过配置文件中 “state.checkpoints.dir” 配置项来指定元数据文件和数据文件的存储路 … WebMay 4, 2024 · 有了这些基础，你就可以在流式计算中对 Flink Checkpoint 进行配置了，下文会详细介绍各种配置方式，以及配置原则。 1. Checkpoint 的配置. 在 Flink 应用程序中 … eastgate storage sevierville