Web从概念上讲, Flink 的 Savepoint 与 Checkpoint 的不同之处类似于传统数据库中的备份与恢复日志之间的差异 。 Checkpoint 的主要目的是为意外失败的作业提供恢复机制 。 Checkpoint 的生命周期由 Flink 管理,即 Flink 创建,管理和删除 Checkpoint - 无需用户 … Web14、Checkpoint的生成过程和恢复过程详解 15、Checkpoint Barrier详解 16、Kafka+Flink+Kafka实现端到端一致性 17、Flink-Kafka相关源码分析 【本周思考与讨论】 1、如何基于Mysql实现一个支持Exactly-once语义的Sink组件? 2、Checkpoint在什么时候会自动触发恢复?
Flink State、CheckPoint与Savepoint、Flink的Exactly ... - 简书
WebJan 5, 2024 · Checkpoint 是程序自动容错,快速恢复 。Savepoint 是 程序修改后继续从状态恢复,程序升级等。 用户交互: Checkpoint 是 Flink 系统行为 。Savepoint 是用户触发。 Checkpoint 默认程序删除,可以设置 CheckpointConfig 中的参数进行保留 。Savepoint 会一直保存,除非用户删除; State WebNov 2, 2024 · Checkpoints and Savepoints are two different features in Apache Flink that serve different needs to ensure consistency, fault-tolerance and make sure that the application state is persisted both in case of unexpected job failures (with Checkpoints) as well as in cases of upgrades, bug fixes, migrations or A/B testing (with Savepoints). small business computer network diagram
Flink-savePoint机制 智能后端和架构
WebThe allowNonRestoredState controls whether to allow non-restored state, see more info about the property in the Flink CLI doc.. Taking savepoints for a job. There are two ways the operator can help take savepoints for your job. 1. Automatic savepoints. You can let the operator to take savepoints for you automatically by specifying the … Web在Flink YARN的集群中,AM与Flink JobManager在同一个Container中。 ... Savepoint:一个Savepoint就是应用状态的一致性快照,Savepoint与Checkpoint机制相似,但Savepoint需要手动触发,Savepoint保证了任务在升级或迁移时,不丢失掉当前流应用的状态信息,便于任何时间点的任务暂停 ... WebFeb 20, 2024 · 其实说到flink的checkpoint,那必然也得讲讲flink的savepoint 什么是 Savepoint ? Savepoint 与 Checkpoint 有什么不同? Savepoint 是依据 Flink checkpointing 机制所创建的流作业执行状态的一致镜像。你可以使用 Savepoint 进行 Flink 作业的停止与重启、fork 或者更新。 Savepoint 由两部分组成:稳定存储(列入 … small business computer programs