实时计算 Flink版变量的相关内容

阿里云文档 2025-03-06

变量使用方法

使用变量可以避免明文AccessKey、密码等信息带来的安全风险，通过复用可以避免重复编写相同的代码或值，易于配置管理。支持在SQL作业、JAR或Python作业、日志配置和UI界面等场景中使用。本文为您介绍如何创建变量，以及不同场景下的使用方法。

问答 2024-07-17 来自：开发者社区

Flink作业变量这里使用in的方式有办法传两个bigint的值吗？

Flink作业变量这里使用in的方式有办法传两个bigint的值吗？如图

问答 2024-06-11 来自：开发者社区

请教下Flink CDC， oraclecdc针对cdb数据库，需要用哪个变量替代吗？

请教下Flink CDC， oraclecdc针对cdb数据库，这个ORACLE_SID是填某个PDB的名称还是直接填文档中的ORCLCDB这个就行昂？需要用哪个变量替代吗？

问答 2023-08-23 来自：开发者社区

Flink CDC mysql5.7,请问官方说驱动要用8.0.28，报错获取不到这个变量：？

Flink CDC mysql5.7,请问官方说驱动要用8.0.28，报错获取不到这个变量：com.mysql.cj.CharsetMapping.COLLATION_INDEX_TO_COLLATION_NAME 从8.0.26这个变量就变成私有了，请问是我Flink 吃点菜版本用错了吗，我用的是2.0.0？

问答 2023-07-25 来自：开发者社区

我想问一下Flink中我用广播变量的话怎么更新呢？我现在是用就是用第二个去覆盖第一个，不知道有啥问题

问答 2023-07-25 来自：开发者社区

Flink平台 sql开发模块，像数据ip 这些能抽相出一个变量或者配置吗？还是只能用密钥管理？

问答 2023-07-24 来自：开发者社区

flink中，我截图这里是变量配置，我创建临时表时with里面引用${secret_values.密

flink中，我截图这里是变量配置，我创建临时表时with里面引用${secret_values.密钥名}，然后对临时表查询报错，创建临时表引用${secret_values.密钥名}，不能进行select吗？java.lang.RuntimeException: Failed to fetch next result at org.apache.flink.streaming.api.oper....

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更新时间 2024-07-18 09:32:51

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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