Flink SQL UDF（用户自定义函数）需要打包成JAR文件并上传到Flink集群中，这是因为Flink SQL需要对UDF进行序列化和反序列化操作，以便在分布式环境中使用。将UDF打包成JAR文件可以确保UDF的代码和依赖项一起传递，并且可以在多个任务之间共享。虽然将UDF打包成JAR文件可能会增加一些复杂性ÿ...

文章 2023-10-11 来自：开发者社区

Flink CDC程序都需要打包到flink集群去执行来保证高可用

在Flink CDC程序中，如果需要保证程序的高可用性，通常需要将程序打包到Flink集群中去执行。这是因为Flink的作业是运行在集群上的，通过集群的高可用性机制来保证作业的稳定运行。如果将程序部署在单个机器上，一旦机器故障，程序就会停止运行，无法保证高可用性。另外，将程序打包到Flink集群中还...

问答 2023-10-10 来自：开发者社区

Flink CDC程序都需要打包到flink集群去执行来保证高可用吗？

问答 2023-02-27 来自：开发者社区

flink本地可以读到配置文件，打包到集群报空指针问题，读不到那个配置文件。为什么？

问答 2022-02-15 来自：开发者社区

Flink 1.10读取kafka数据，打包jar，提交任务到集群运行测试，遇到问题

我在用Flink 1.10读取kafka数据，本地IDEA环境执行没有问题，将代码编译打包（不是fat jar）到集群上运行测试，执行提示：java.lang.NoClassDefFoundError: org/apache/flink/streaming/connectors/kafka/FlinkKafkaConsumerBase问题。我在Flink 1.10集群的每个节点下的 /lib下....

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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