实时计算 Flink版自定义的相关内容

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问答 2021-12-06 来自：开发者社区

flink 1.9 自定义UDAF 实现state管理的逻辑吗？

flink 1.9 自定义UDAF 实现state管理的逻辑吗？还是和sql一样自己管理stage？ *来自志愿者整理的flink邮件归档

问答 2021-12-06 来自：开发者社区

Flink sql中可以使用自定义窗口触发器吗

rt *来自志愿者整理的flink邮件归档

问答 2021-12-06 来自：开发者社区

hello 我在使用flinkSQL注册udf时，发生了以下错误，这是我定义有问题还是flink的bug org.apache.flink.client.program.ProgramInvocationException: The main method caused an error: SQL validation failed. From line 11, column 6 to line....

问答 2021-12-06 来自：开发者社区

flink如flink如何从流中取出自定义的数据结构出问题

flink版本使用1.12.2。有一个需求就是想要从stream中拿出自定义的数据结构，暂且叫a并赋值给后面变量，基于这个a取他的属性作一些判断操作。比如： val ds: DataStream[b] = stream.filter(_.nonEmpty).map(new MapFunction[String, b] { override def map(value: String) = {.....

问答 2021-12-05 来自：开发者社区

flink如何从流中取出自定义的数据结构并赋值给变量？

问答 2021-12-04 来自：开发者社区

flink 如何自定义connector？

如题，有哪位大神可以帮忙解答一下？来自志愿者整理的flink邮件归档来自志愿者整理的FLINK邮件归档

问答 2021-12-04 来自：开发者社区

请教一下，flink 如何自定义connector呢？

请教大家，flink 1.10中如何自定义coonnecter，然后注册到flink sql gateway，使得可以执行sql的操作呢？来自志愿者整理的flink邮件归档来自志愿者整理的FLINK邮件归档

问答 2021-12-03 来自：开发者社区

请问flink如何从流中取出自定义的数据结构并赋值给变量呢？

问答 2021-12-02 来自：开发者社区

Flink on native k8s如何自定义挂载盘？

为了监控TM OOM情况发生，我们在启动作业的时候添加了如下参数 -Denv.java.opts.taskmanager="-XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/var/log/oom.bin" 想在OOM发生的时候能生成HeapDumpFile，以便事后分析。但是因为OOM时TM所在的pod会被销毁，因此想挂载一个网络盘持久化He....

问答 2021-12-02 来自：开发者社区

请教如何在flink job 自定义kafka source function 及时提交offset

我有这样一个业务场景，在checkpoint disable的情况下，不想用auto.commit 功能在等待interval时间后提交offsets, 想要在flink job sink 完成后及时提交offset，我阅读了一下flinkKafkaConsumer的源码，没有找到实现方式，麻烦请教大神有什么建议的实现方式吗？或者还有什么其他的建议？谢谢！附件中是我写的测试代码...

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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