实时计算 Flink版checkpoint解析的相关内容

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。

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。

文章 2022-04-26 来自：开发者社区

Flink可靠性的基石-checkpoint机制详细解析（二）

修改State Backend的两种方式第一种：单任务调整修改当前任务代码env.setStateBackend(new FsStateBackend("hdfs://namenode:9000/flink/checkpoints"));或者new MemoryStateBackend()或者new RocksDBStateBackend(filebackend, true);【需要添加第三方依....

文章 2022-04-26 来自：开发者社区

Flink可靠性的基石-checkpoint机制详细解析（一）

Checkpoint介绍checkpoint机制是Flink可靠性的基石，可以保证Flink集群在某个算子因为某些原因(如异常退出)出现故障时，能够将整个应用流图的状态恢复到故障之前的某一状态，保证应用流图状态的一致性。Flink的checkpoint机制原理来自“Chandy-Lamport algorithm”算法。每个需要checkpoint的应用在启动时，Flink的JobManag....

文章 2020-07-24 来自：开发者社区

Flink 1.11 Unaligned Checkpoint 解析

作者：林小铂@网易作为 Flink 最基础也是最关键的容错机制，Checkpoint 快照机制很好地保证了 Flink 应用从异常状态恢复后的数据准确性。同时 Checkpoint 相关的 metrics 也是诊断 Flink 应用健康状态最为重要的指标，成功且耗时较短的 Checkpoint 表明作业运行状况良好，没有异常或反压。然而，由于 Checkpoint 与反压的耦合，反压反过来也会作....

文章 2020-03-11 来自：开发者社区

有赞实时任务优化：Flink Checkpoint 异常解析与应用实践

作者：沈磊（有赞大数据）有赞实时任务主要以 Flink 为主，为了保证实时任务的容错恢复以及停止重启时的状态恢复，几乎所有的实时任务都会开启 Checkpoint 或者触发 Savepoint 进行状态保存。由于 Savepoint 底层原理的实现和 Checkpoint 几乎一致，本文结合 Flink 1.9 版本，重点讲述 Flink Checkpoint 原理流程以及常见原因分析，让用户....

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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。

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实时同步

MySQL 到 Hologres

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功能对比

开源Flink对比

成本优化

作业自动调优