How to run Hangfire as a separate process from the main web application?

Question

I am experiencing a big performance hit with Hangfire running on the same app pool as my web application and our site has become terribly slow with CPU sitting at 96% constantly. I have looked at the Hangfire documentation and there is a way to run hangfire separate as a console or windows service. However, I do not understand how to achieve this and still get the dashboard. I have created a service as described on this link Here. Below is the current setup

Startup

[assembly: OwinStartup(typeof(MyProject.FrontEnd.Startup))]
namespace MyProject.FrontEnd
{
    /// <summary>
    /// 
    /// </summary>
    public class Startup
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="app"></param>
        public void Configuration(IAppBuilder app)
        {
            app.UseHangfireAspNet(GetHangfireServers);
            app.UseHangfireDashboard();

            app.UseCors(Microsoft.Owin.Cors.CorsOptions.AllowAll);
            app.Use<RememberMeTokenMiddleware>();
            .........
        }

private IEnumerable<IDisposable> GetHangfireServers()
        {
            GlobalConfiguration.Configuration
                .SetDataCompatibilityLevel(CompatibilityLevel.Version_170)
                .UseSimpleAssemblyNameTypeSerializer()
                .UseRecommendedSerializerSettings()
                .UseSqlServerStorage("eCertDb");

            yield return new BackgroundJobServer();
        }

If I comment only app.UseHangfireAspNet(GetHangfireServers); the dashboard and application breaks. I get the error

JobStorage.Current property value has not been initialized. You must set it before using Hangfire Client or Server API

. If I comment app.UseHangfireDashboard();, now whereever I have implementation of Hangfire it breaks, e.g. in my business layer

BackgroundJob.Enqueue<DocumentServiceWorker>(_ => _.PublishDocument(application.ApplicationReferenceNo, false));

The problem is how do I still have the above calls in the main application if hangfire is running in a different process? How do I still get the dashboard if I am running Hangfire as a Windows Service, do I need a separate site?

Answer 1

I found a project that essentially answers my question. This is how I changed my code to simply setting the UseSqlServerStorage for the client.

 public class Startup
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="app"></param>
        public void Configuration(IAppBuilder app)
        {
            GlobalConfiguration.Configuration.UseSqlServerStorage("xxxx");
            app.UseHangfireDashboard();

            app.UseCors(Microsoft.Owin.Cors.CorsOptions.AllowAll);
            .......
    }

For the Windows Service I used the provided example from the Hangfire blog.

Example