如何在 IIS 中优雅地结束 Quartz 3.0.x with ASP.NET Core 2.2 作业？

Question

我正在尝试在 IIS 中优雅地结束运行的 Quartz 作业。我的代码如下：

这份工作

    [DisallowConcurrentExecution]
    public class TestJob : IJob
    {
        private ILoggingService Logger { get; }
        private IApplicationLifetime ApplicationLifetime { get; }

        private static object lockHandle = new object();
        private static bool shouldExit = false;

        public TestJob(ILoggingService loggingService, IApplicationLifetime applicationLifetime)
        {
            Logger = loggingService;
            ApplicationLifetime = applicationLifetime;
        }

        public Task Execute(IJobExecutionContext context)
        {
            //TODO: does not seem work
            //context.CancellationToken.Register(() =>
            //{
            //    lock (lockHandle)
            //    {
            //        shouldExit = true;
            //    }
            //});

            return Task.Run(() =>
            {
                //TODO: check
                ApplicationLifetime.ApplicationStopping.Register(() =>
                {
                    lock (lockHandle)
                    {
                        shouldExit = true;
                    }
                });

                try
                {
                    for (int i = 0; i < 10; i ++)
                    {
                        lock (lockHandle)
                        {
                            if (shouldExit)
                            {
                                Logger.LogDebug($"TestJob detected that application is shutting down - exiting");
                                break;
                            }
                        }

                        Logger.LogDebug($"TestJob ran step {i+1}");
                        Thread.Sleep(3000);
                    }
                }
                catch (Exception exc)
                {
                    Logger.LogError(exc, "An error occurred during execution of scheduled job");
                }
            });
        }
    }

Startup.cs

protected void StartJobs(IApplicationBuilder app, IApplicationLifetime lifetime)
{
    var scheduler = app.ApplicationServices.GetService<IScheduler>();
    //TODO: use some config
    QuartzServicesUtilities.StartJob<TestJob>(scheduler, TimeSpan.FromSeconds(60));

    lifetime.ApplicationStarted.Register(() => scheduler.Start());
    lifetime.ApplicationStopping.Register(() => scheduler.Shutdown());
}

private static void ConfigureApplicationLifetime(ILoggingService logger, IApplicationLifetime lifetime)
{
    lifetime.ApplicationStopping.Register(() =>
    {
        logger.LogInfo(null, "Application is stopping...");
    });

    lifetime.ApplicationStopped.Register(() =>
    {
        logger.LogInfo(null, "Application stopped");
    });
}

所以，我已经连接到 ApplicationStopping 以便能够以优雅的方式关闭 Quartz 作业。但是，当 IIS 应用程序池即将结束时，作业突然结束：

更改 web.config 中的内容以触发应用程序池停止
应用程序池配置为最多允许 90 秒结束。也允许重叠
记录记录Application is stopping并立即Application stopped，因此作业突然结束

我记得在 ASP.NET 中使用 Quartz 2.x 进行了类似的实现：允许 Quartz 作业完成其工作，前提是它们在应用程序池关闭期间设法完成。

问题：如何在 IIS 中使用 ASP.NET Core 2.2 作业优雅地结束 Quartz 3.0.x？

Answer 1

您可以给 true 一个 'scheduler.Shutdown()' 以等待作业完成。这应该会延迟池关闭，直到作业运行结束。

lifetime.ApplicationStopping.Register(() => scheduler.Shutdown(true));

您可以阅读更多相关信息 here。

如何在 IIS 中优雅地结束 Quartz 3.0.x with ASP.NET Core 2.2 作业？

How to gracefully end a Quartz 3.0.x with ASP.NET Core 2.2 job in IIS?

shutdown

quartz.net

iis-10

asp.net-core-2.2

这份工作

Startup.cs