实时计算 Flink版增量程序的相关内容

阿里云文档 2025-11-24

使用函数计算访问表格存储Tablestore

函数计算通过事件驱动机制自动处理表格存储的增量数据变更，实现数据变更的实时响应和自动化处理。

阿里云文档 2025-09-11

如何通过Flink CDC实时订阅AnalyticDB for PostgreSQL的全量和增量数据

AnalyticDB for PostgreSQL提供自研的CDC连接器，基于PostgreSQL的逻辑复制功能实现订阅全量和增量数据，可与Flink无缝集成。该连接器能够高效捕获源表的实时变更数据，支持实时数据同步、流式处理等，助力企业快速响应动态数据需求。本文介绍如何通过阿里云实时计算Flink版CDC实时订阅AnalyticDB for PostgreSQL的全量和增量数据。

问答 2023-07-13 来自：开发者社区

Flink CDC这个是什么原因，我之前同步的是全量，改成增量了就不行了？有没有遇到程序停止后pg

Flink CDC这个是什么原因，我之前同步的是全量，改成增量了就不行了？有没有遇到程序停止后pg slot 状态还是激活的13.5

问答 2021-12-06 来自：开发者社区

flink使用RocksDB增量checkpoints，程序运行一段时间报出：超出物理内存怎么处理？

最近刚刚尝试使用flink 1.9.1 的RocksDB做增量checkpoints；在程序种设置： val backend = new RocksDBStateBackend("hdfs://xx/", true) backend.setPredefinedOptions(PredefinedOptions.SPINNING_DISK_OPTIMIZED_HIGH_MEM) 并用Map...

问答 2021-12-06 来自：开发者社区

flink使用RocksDB增量checkpoints，程序运行一段时间报出：超出物理内存

这面还想多请教一下：我程序中每来一条数据都会去读MapState然后覆盖写入新的时间戳，刚刚发现某一条数据读出了两条一样的时间戳，我推断是第一个线程读出来后还没等覆盖掉，第二个线程又读了一遍，导致出现两条一样的时间戳；所以想请问flink中MapState是线程安全的吗？ *来自志愿者整理的flink邮件归档

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更新时间 2024-03-15 12:25:42

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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

产品控制台

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