Hi, everybody.
The design and development of SPI in the DolphinScheduler community has already begun, and the development of Alert spi is about to be completed. Therefore, we need relevant documents to tell users how to develop spi. We hope that interested friends in the community can participate in this work. If you are interesting this research, you can leave a comment below. thank you very muc

问题描述：关于工程中某个工作流节点单独执行不报错，保存工作流时提示：NotClassDefFoundError：Cloud not initialize class dispatch.Http$

问题原因：linkis-publish微服务关于netty-3.6.2.Final.jar升级包缺失

问题解决：将升级包上传重启linkis-publish微服务即可。