问题一：Flink ctas任务，任务同步报错，怎么回事？ Flink ctas任务，我mysql表改了字段类型某个字段属性从 nullable 改成 not null后，任务同步报错。我从无状态重启，任务还是报错。但是我把任务删除重新部署后，（代码没有修改），再从无状态启动，就能同步成功了。这是为啥呢？参考答案：任务停了之后，资源配置那边重新生...

问答 2024-05-03 来自：开发者社区

实时计算 Flink版在一个jar里面执行了 tableEnv.会生成两个job吗？

实时计算 Flink版在一个jar里面执行了 tableEnv.executeSql 和 env.execute 会生成两个job吗？

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更新时间 2024-08-14 09:09:42

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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