This functionality is still available and you can create Worker Services that run as a Windows Service. When Phil Haack was a program manager on the ASP. NET Framework could create Windows Services to perform background tasks or execute long-running processes. Examples of long-running tasks include sending email, image processing, and generating a PDF file. Hence if you need your scheduled tasks to run even in the even that the web app / database might be down or inaccessible, you should go with this approach. .NET Framework developers are probably familiar with Windows Service apps. This can allow for fundamental decoupling between the web application and the scheduled task. In ASP.NET Core 3. The alternate approach is to create an executable server script / program that does all the schedule work itself and run the executable itself as a scheduled task. The fact that the task code is contained within a web script is purely for the sake of keeping the code within the web application code-base (the assumption is that both are dependent on each other), which would be easier for web developers to manage. NET with ASP.NET Core and worker c - Scheduled task on. windows schedule task that quietly launches the heatbeat script using IE or whathaveyou) ASP.NET Scheduler and Calendar for Web Forms & MVC Web10 ian. 1) Create a "heartbeat" web script that is responsible for launching the tasks if they are DUE or overdue to be launched.Ģ) Create a scheduled process somewhere (preferrably on the same web server) that hits the webscript and forces it to run at a regular interval. It seems like a bit of overkill to schedule that long running tasks five times a day since it typically is run only once a month - but at the same time, the user expects to have his results within a reasonable amount of time (less than 1 hour, if ever possible) after scheduling the process - so I cannot really just schedule it to run once at night either. NET CLI, open your favorite terminal in a working directory. From the Create a new project dialog search for 'Worker Service', and select Worker Service template. existence of some database entries), and if needed, that job would then launch the long-running task.īut the same question: if I launch my 20-minute task from a job using Process.Start() - does that block the caller? To create a new Worker Service project with Visual Studio, you'd select File > New > Project. and also: even if it doesn't block my UI, what happens to my long-running task if the ASP.NET app pool recycles while it's still running?Īnother idea was to have a frequently running job (runs every 2 minutes) check for some kind of a flag (e.g. What happens if I use Process.Start(.) from my ASP.NET page's code-behind? I would like to avoid blocking the whole Web UI for 20 minutes or so. It will need to be async and it should run independently of my ASP.NET Core 2.1 application. It has to run every 2 hours and it will need to access my DI Container because it will perform some cleanups in the database. Even though you could use Scheduled Tasks or Windows Services, it would require manual configuration in every server you install your application, and they come. Since ASP.NET really isn't designed to handle long-running background tasks, my idea was to put this into a separate console app. 21 I want to run a background job in ASP.NET Core 2.1. I have a fairly long-running process (several minutes) that I need to run roughly once a month - but not on a fixed schedule, but after a user clicks Go in a ASP.NET Webforms GUI page.
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