实时计算 Flink版cdc数据量的相关内容

问答 2023-07-13 来自：开发者社区

Flink CDC 是不是数据量大了，启动后到开始增量同步要好久？

问答 2023-07-01 来自：开发者社区

Flink CDC中有没有大佬做过rockdb调优的？感觉数据量大的时候join效率很低下

问题1:Flink CDC中有没有大佬做过rockdb调优的？感觉数据量大的时候join效率很低下问题2:都是调tm的托管内存么，先确保你的jdbc能select出来

问答 2023-06-29 来自：开发者社区

Flink CDC 中刚才了解到现网有个单表2.2数据量的，在数据初始化全量同步时候？

问题1:Flink CDC 中刚才了解到现网有个单表2.2数据量的，在数据初始化全量同步时候flinkcdc支持按主键分组并行抽取吗求解答大佬？问题2:那如果单表数据量像这种非常大的情况咋处理呢

问答 2023-06-29 来自：开发者社区

flink cdc initial 模式， source表数据量过大，导致checkpoint 一？

flink cdc initial 模式， source表数据量过大，导致checkpoint 一直 Checkpoint expired before completing. 有没有遇到过的大神指导一下如何优化呀？

问答 2023-06-18 来自：开发者社区

请教下Flink CDC中使用mysqlcdc全量+增量，增量阶段数据量比较大一亿多左右，？

请教下Flink CDC中使用mysqlcdc全量+增量，增量阶段数据量比较大一亿多左右，binlog日志6000 r/s 。目前出现的异常是checkpoint失败。这个需要咋优化？

问答 2023-06-18 来自：开发者社区

前辈，Flink CDC中我表1是1500万条，表2是250万条数据。速度跟数据量有关吗，比例抽取？

问题1:前辈，Flink CDC中我表1是1500万条，表2是250万条数据。速度跟数据量有关吗，比例抽取？1500万条的表跑了10分钟；250万条的表跑了9小时，跑出oracle的ORA-01555 snapshot too old了问题2:用DataStream的方式，不要的字段有办法过滤吗。在序列化的时候过滤不知道合不合理

问答 2023-06-18 来自：开发者社区

Flink CDC中scan.这个参数在数据量大的时候开启好还是禁用好？

Flink CDC中scan.incremental.snapshot.enabled这个参数在数据量大的时候开启好还是禁用好？

问答 2023-05-29 来自：开发者社区

大佬们，想问一下flink cdc支持同步postgres的按日分区的分区表吗？数据量有点大，分区后

大佬们，想问一下flink cdc支持同步postgres的按日分区的分区表吗？数据量有点大，分区后比较容易清理历史数据

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更新时间 2025-01-11 08:46:32

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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