大神们，我用flink1.15版本，想在读取kafka的数据前，先给这个流填充一些数据进去，有什么办法吗？感觉没有地方可以先加上一些数据啊？想给dataStream在接收kafka数据前，填充一些数据进去KafkaSource source = KafkaSource. builder() .setBootstrapServers(PropertitesUtil.getCo...

问答 2022-06-10 来自：开发者社区

写了一个Flink的程序消费kafka数据；现在要提交到yarn集群上运行；是不是得开通 yarn

写了一个Flink的程序消费kafka数据；现在要提交到yarn集群上运行；是不是得开通 yarn 里面 NodeManager 到 kafka集群的9092 端口才行，还是本地提交flink任务的机器能访问 kafka 9092就行？

文章 2022-06-09 来自：开发者社区

Flink 1.14.0 消费 kafka 数据自定义反序列化类

在最近发布的 Flink 1.14.0 版本中对 Source 接口进行了重构,细节可以参考 FLIP-27: Refactor Source Interface重构之后 API 层面的改动还是非常大的,那在使用新的 API 消费 kafka 数据的时候如何自定义序列化类呢?Kafka SourceKafkaSource<String> source = KafkaSource.&am...

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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。

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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