workflow

I have an airflow workflow that I'd like to modify (see illustration at the bottom). However, I couldn't find a way to do that in the docs. I've looked at subdags, branching and xcoms without luck. There doesn't seem to be a way to specify how many tasks should run in parallel in a subdag based on a return from an operator. To add to the problem, each task in the subdag receives a different parameter (an element from the list returned by the previous operator) This is an illustration of what I'm trying to do : I've run into this as well and haven't really found a clean way to address it. If

I would like to implement the following use case with the ViewFlow library : Problem Processes of a particular Flow, started by a user, must wait in a queue before executing a celery job. Each user has a queue of these processes. Based on a schedule, or triggered manually, the next process in the queue is allowed to proceed. Example A node within my flow enters a named queue. Other logic within the application determines, for each queue, when to allow the next task to proceed. The next task in the queue is selected and its activation's done() method called. An example flow might look like this

I want to programmatically make it so that users can see only particuar items on the list. Basically in an workflow that runs when an item is created I'm going to do some stuff and notify some people about this item. I also want it to change the permissions on the item so that only particular users (looked up on runtime based on the items contents) can read the item. The rest of the users that have access to the list will only see particular items but not all of them. The list item might not necessarily be owned but the user(s) that need to see it so I can't set the list permissions to letting

I am working on a design spec for a new application that will be heavily workflow driven. Before I re-invent the wheel, is there a decent lightweight workflow engine that plugs into ASP.NET already around? Basically, I'm looking for something that handles moving through a defined set of workflow pages while handling state management automatically. If this isn't around already, I'll definitely try to abstract the engine from my app and put it on codeplex, as it would be really handy. Any suggestions? Note: .NET 2.0, so no WWF, though I think WWF is overkill for my needs. EDIT: Seems like there

上篇文章介绍用实例主机部署： https://www.cnblogs.com/weavepub/p/11672305.html ，本文采用Rancher上部署。 文章所有的文件都托管在Github： https://github.com/weavepub/loonflow-shutongflow 一、安装mysql 1.1 安装 服务名：workflow-db 镜像名：mysql:5.7 环境变量：MYSQL_ROOT_PASSWORD，值：123456 持久化路径： /var/run/mysqld /var/lib/mysql /etc/mysql/conf.d 1.2 创建数据库 mysql -uroot -p mysql> CREATE DATABASE loonflow DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci; mysql> CREATE DATABASE shutongflow DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci; 1.3 导入数据 sql文件放在workflow-sql目录中 mysql -uroot loonflow < loonflownew.sql mysql -uroot shutongflow < shutongflow.sql 1