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[帮助文档] SQL参数配置_实时计算 Flink版(Flink)

本文介绍SQL开发中涉及的重要参数说明和使用示例。

Flink CDC产品常见问题之sql运行中查看日志任务失败如何解决

问题一：Flink CDC里mysql-cdc同步到kafka中，对同一条数据多次操作，怎么区分先后？ Flink CDC里mysql-cdc同步到kafka中，对同一条数据多次操作，op_ts字段可能会一样，如何区分先后顺序呢？同一条数据在短时间内有i、d、u操作，操作时间读取过来也是同一个，这咋...

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Flink CDC里提交一个sql任务，如何在sql运行中，能查看日志任务？提交到yarn上，在yarn的web上能看到执行的sql吗？就是有很多任务会提交到yarn上，有个别任务占用的内存很大，我想定位到具体是执行的那一个sql任务？

Flink报错问题之提交flink sql任务报错如何解决

问题一：1.11.1 报OutOfMemoryError: Metaspace. 错误我是用flink sql,通过JDBC源读取mysql表数据，多次提交后，报OutOfMemoryError: Metaspace.错误，最后分析是mysql驱动包中有个守...

DataphinV3.14 Flink SQL任务支持基于Session集群调试，模拟生产代码逻辑的调试效果

背景实时研发一直以来的都是通过local-debug的方式来调试开发中的Flink SQL任务，该方式有如下不足: 支持的采样数据有限，且非是流式数据的调试。手动上传构造数据的方式较为繁琐，局限性较大。为便于Flink SQL任务的调试，DataphinV3.14版本支持Flink SQL任务基于...

Flink binlog 收到这样一条sql 任务就崩溃了，怎么解决呀？

Flink binlog 收到这样一条sql 任务就崩溃了，怎么解决呀？已经稳定运行很久了最近出现了这样一个错

[帮助文档] SQL查询脚本_实时计算 Flink版(Flink)

查询脚本支持Call和DDL、DQL、DML语法。您可以通过查询脚本创建管理Catalog、表、数据查询，可以使用explain语法查看执行计划定位问题，也可以实现对Paimon的管理。

Flink CDC中flink sql 可以做mysql to mysql同步任务吗？

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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