实时计算 Flink版增量数据的相关内容

Flink CDC 里增量阶段并发是1，是因为保证一个slave获取binglog，避免数据重复吧？

Flink CDC 里增量阶段并发是1，是因为了保证一个slave获取binglog，避免数据重复吧？增量阶段不可能存在多并行度吧，多并行度就出现了每一个记录都会获取重复条数？并行度为1时，整表数据在flink内部也不是有序的，cdc内部用了一些hashmap缓存记录，同一个表的主键并不有序。

flink cdc 增量问题之增量数据会报错如何解决

问题一：Flink CDC里mysql在添加一个设置有默认值的decimal字段时，为啥报错？在使用Flink CDC（版本1和2）时，是否遇到过在MySQL中添加一个带有默认值的decimal字段时，导致Flink CDC抛出NumberFormatException异常的情况？尤其是提到在...

实时数据分析：使用Flink实时发现最热Github项目

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实时数据接入：5分钟上手 Flink MySQL 连接器

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大数据知识图谱系列—基于ELK+Flink日志全观测最佳实践

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[帮助文档] 使用UDAF实现数据排序和聚合

本文提供了一个自定义聚合函数（UDAF），实现将多行数据合并为一行并按照指定列进行排序，并以居民用电户电网终端数据为例，介绍如何在实时计算控制台使用该函数进行数据聚合和排序。

flink cdc intial 模式下先读全量再读增量，如果快照读取是否会导致数据重复消费？

flink cdc intial 模式下，先读全量再读增量，拿mysql cdc 举例，如果快照读取完毕，如下图，还会backfill在读期间新增的binlog 数据。那如果在快照读取节点是并发读取，是否会导致binlog数据重复消费？

Flink CDC里问下增量数据可以不写进kafka，直接写进下游数据库吗？

mysql Flink CDC获取增量数据的时候，速度追不上最新的binlog,有什么解决办法嘛？

mysql Flink CDC获取增量数据的时候，速度追不上最新的binlog,这个有什么解决办法嘛？

Flink CDC 重新编译了源码，为啥快照还是获取不到增量数据？

Flink CDC按照 https://github.com/ververica/flink-cdc-connectors/pull/2315 重新编译了源码，Incremental Snapshot based DataStream 为啥快照还是获取不到增量数据？sql方式和 SourceFu...

Flink CDC有遇到使用mysql社区版连接器全量读取完后，增量读取丢数据的情况吗？

Flink CDC有遇到使用mysql社区版连接器全量读取完后，增量读取丢数据的情况吗？2.4.1版本的连接器，任务是用table api监听MySQL，然后将table转流，进行消费，写到下游MySQL分表

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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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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