一.引言Flink 本地执行任务报错 Failed to start the Queryable State Data Server 以及 Unable to start Queryable State Server. All ports in provided range are occupied. 根据报错分析是因为本地端口被占用，没有足够端口供 Flink Queryable ....

问答 2022-08-15 来自：开发者社区

请问大家遇到过 postgres cdc 查询不到更新吗，我在 flink sql 执行了一个查询

请问大家遇到过 postgres cdc 查询不到更新吗，我在 flink sql 执行了一个查询 ,然后在业务数据库更新数据，但是 postgres cdc 查不到更新，只有重新执行查询才能看到更新的数据。。。

问答 2022-08-15 来自：开发者社区

老师们，就是用flink sql连hive执行啥sql都会报这个错，怎么办？

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更新时间 2022-12-12 10:24:31

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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