How to restart the service when time is reach only once a day

Question

Hi,

in continue to https://learn.microsoft.com/en-us/answers/questions/1663229/service-monitor

how to restart the service when time is reach only once a day ?

protected override async Task ExecuteAsync(CancellationToken stoppingToken) { while (!stoppingToken.IsCancellationRequested) { var restartTime = TimeSpan.Parse(_configuration["ServiceRestartTime"]); var currentTime = DateTime.Now.TimeOfDay; if (currentTime >= restartTime) { _logger.LogInformation($"Restarting service at {DateTime.Now}"); // Restart the service here RestartService("YourServiceName"); _logger.LogInformation($"Service restarted at {DateTime.Now}"); } await Task.Delay(60000, stoppingToken); // Check every minute } }

Answer 1

Hi @Dani_S , Welcome to Microsoft Q&A,

In an infinite loop, check once a minute whether the current time has reached the restart time. If the current time has exceeded the restart time and is within one minute, execute the logic to restart the service. To avoid repeated restarts, wait 24 hours after executing the restart before performing the next check.

using System;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;

public class TimedHostedService: BackgroundService {
    private readonly IConfiguration _configuration;
    private readonly ILogger <TimedHostedService> _logger;

    public TimedHostedService(IConfiguration configuration, ILogger <TimedHostedService> logger) {
        _configuration = configuration;
        _logger = logger;
    }

    protected override async Task ExecuteAsync(CancellationToken stoppingToken) {
        while (!stoppingToken.IsCancellationRequested) {
            var restartTime = TimeSpan.Parse(_configuration["ServiceRestartTime"]);
            var currentTime = DateTime.Now.TimeOfDay;

            if (currentTime >= restartTime && currentTime < restartTime.Add(TimeSpan.FromMinutes(1))) {
                _logger.LogInformation($ "Restarting service at {DateTime.Now}");

                // Call the method to restart the service
                RestartService("YourServiceName");

                _logger.LogInformation($ "Service restarted at {DateTime.Now}");

                // Ensure restarts don't repeat within a day
                await Task.Delay(TimeSpan.FromHours(24), stoppingToken);
            } else {
                // Check every minute
                await Task.Delay(TimeSpan.FromMinutes(1), stoppingToken);
            }
        }
    }
}

Best Regards,

Jiale

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Answer 2

not sure why you'd schedule a service restart, but it depends on on what you use for a scheduler. you can use Task Scheduler

https://learn.microsoft.com/en-us/windows/win32/taskschd/task-scheduler-start-page

it could run your program, or just a simple bat file that just:

net stop MyService
net start MyService

if you want to use a second sevice to restart like the sample in the link. you need to add code to detect it ran once that day:

            var restarted = false;
            while (!stoppingToken.IsCancellationRequested)
            {
                var restartTime = TimeSpan.Parse(_configuration["ServiceRestartTime"]);
                var currentTime = DateTime.Now.TimeOfDay;

                if (currentTime < restartTime)
                    restarted = false;
                else if (!restarted)
                {
                    _logger.LogInformation($"Restarting service at {DateTime.Now}");

                    // Restart the service here
                    RestartService("YourServiceName");

                    _logger.LogInformation($"Service restarted at {DateTime.Now}");
                    restarted = true;
                }

                await Task.Delay(60000, stoppingToken); // Check every minute
            }