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Flink CDC中flink-sql-connector-oracle-cdc-2.3.0.jar 运行作业会导致数据库磁盘读的很高，出现IO性能瓶颈，大佬们如何解决？

解决Flink流式任务的性能瓶颈

都说“过早进行性能优化是万恶之源”，我宁肯相信这是为了“矫枉过正”而出此惊人之语，更何况，现在的IT时代已与Donald Knuth的时代已有很大差异了。重点还是在于“过早”这个词，之所以Knuth告诫我们不要过早进行性能优化，原因在于：判断性能是否存在问题，不能太早太早做性能优化，有...

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开发中用Flink State遇到性能瓶颈不知道原因在哪，求解！！！！

将数据都存入state中发生反压，经过了三种方法改动，临时选择将少量数据存在内存中，但是不解决问题，求解原因是什么通过state机制将数据存储到flink state中，实践中发现由于数据量较大实时更新state状态，对象序列化时间较长，会导致反压,暂未找到避免序列化方案；不能全量存数据，采用fli...

使用Kafka作为Flink的输入源是性能瓶颈吗？

Flink允许从Kafka主题中读取，这是一个性能瓶颈，使Flink总体上变慢了吗？

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更新时间 2023-11-05 12:40:37

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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