实时计算 Flink版快照checkpoint 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。

问答 2024-07-26 来自：开发者社区

在Flink CDC中增量快照阶段checkpoint失败有啥排查方式吗？

问答 2024-07-23 来自：开发者社区

Flink在增量快照阶段checkpoint失败

Hadoop：3.3.6Flink：1.17.1JDK：1.8启动任务后，任务处在增量快照阶段，checkpoint进度一直卡在0%，超时候则显示失败，当增量快照阶段结束后，checkpoint则恢复正常的保存，保存时间大概在20ms左右，请问遇到这种情况应该如何排查？

问答 2024-05-20 来自：开发者社区

Flink CDC里pgsqlcdc2.4.2在快照阶段不支持做checkpoint吗？

Flink CDC里pgsqlcdc2.4.2在快照阶段不支持做checkpoint吗？是这个参数嘛？DataStream2.4.2支持吗我看文档上写的实验。

问答 2024-04-15 来自：开发者社区

Flink CDC里pgsqlcdc2.4.2在快照阶段不支持做checkpoint吗？

Flink CDC里有没有哪位大佬用3.0增量快照模式拉pg的数据成功了的？

问答 2024-02-06 来自：开发者社区

Flink CDC里使用增量快照，怎么读取最近一次的checkpoint?

Flink CDC里使用增量快照'scan.incremental.snapshot.enabled'='true，启动模式'scan.startup.mode'='initial'，checkpoint已经写S3假设jobmanager崩溃重启，如何读取最近一次的checkpoint?现在是出现sink重复数据的问题呢？

问答 2023-10-31 来自：开发者社区

Flink CDC每次快照执行完后面的checkpoint就这样了，怎么排查啊？

问答 2023-10-23 来自：开发者社区

Flink CDC第一次传输，快照导致checkpoint超时怎么办？

问答 2023-07-19 来自：开发者社区

请问flink cdc 中oracle cdc在表快照期间是不是不能创建checkpoint？

请问flink cdc 中oracle cdc在表快照期间是不是不能创建checkpoint？我看checkpoint文件夹子里面是空的而且数量太大的话还会oom。

问答 2023-04-26 来自：开发者社区

Flink CDC 2.0 提出了增量快照算法后，通过切片能够将 checkpoint 粒度降至 c

Flink CDC 2.0 提出了增量快照算法后，通过切片能够将 checkpoint 粒度降至 chunk，并且 chunk 大小是用户可配置的，默认是 8096 条，用户可以将其调至更小，减轻 writer 的压力，减少内存资源的使用，提升下游写入存储时的稳定性，这个调整参数有谁知道吗？

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更新时间 2024-07-27 14:18:42

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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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产品文档

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