mirror of
https://github.com/Radarr/Radarr
synced 2024-12-25 17:27:59 +00:00
122 lines
No EOL
4.2 KiB
C#
122 lines
No EOL
4.2 KiB
C#
using System;
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using System.Diagnostics;
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using System.Net;
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using System.Runtime.Remoting;
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using System.Threading;
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using NLog;
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using NzbDrone.Common;
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using NzbDrone.Common.Model;
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namespace NzbDrone.Providers
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{
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public class MonitoringProvider
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{
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private static readonly Logger logger = LogManager.GetLogger("Host.MonitoringProvider");
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private readonly IISProvider _iisProvider;
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private readonly ProcessProvider _processProvider;
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private readonly HttpProvider _httpProvider;
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private readonly ConfigFileProvider _configFileProvider;
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private int _pingFailCounter;
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private Timer _pingTimer;
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private Timer _processPriorityCheckTimer;
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public MonitoringProvider(ProcessProvider processProvider, IISProvider iisProvider,
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HttpProvider httpProvider, ConfigFileProvider configFileProvider)
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{
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_processProvider = processProvider;
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_iisProvider = iisProvider;
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_httpProvider = httpProvider;
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_configFileProvider = configFileProvider;
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}
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public MonitoringProvider()
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{
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}
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public void Start()
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{
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AppDomain.CurrentDomain.UnhandledException += ((s, e) => AppDomainException(e.ExceptionObject as Exception));
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AppDomain.CurrentDomain.ProcessExit += ProgramExited;
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AppDomain.CurrentDomain.DomainUnload += ProgramExited;
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_processPriorityCheckTimer = new Timer(EnsurePriority);
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_processPriorityCheckTimer.Change(TimeSpan.FromSeconds(15), TimeSpan.FromMinutes(30));
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_pingTimer = new Timer(PingServer);
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_pingTimer.Change(TimeSpan.FromSeconds(5), TimeSpan.FromMinutes(1));
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}
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public virtual void EnsurePriority(object sender)
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{
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try
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{
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var currentProcess = _processProvider.GetCurrentProcess();
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if (currentProcess.Priority != ProcessPriorityClass.Normal)
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{
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_processProvider.SetPriority(currentProcess.Id, ProcessPriorityClass.Normal);
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}
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var iisProcess = _processProvider.GetProcessById(_iisProvider.IISProcessId);
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if (iisProcess != null && iisProcess.Priority != ProcessPriorityClass.Normal &&
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iisProcess.Priority != ProcessPriorityClass.AboveNormal)
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{
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_processProvider.SetPriority(iisProcess.Id, ProcessPriorityClass.Normal);
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}
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}
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catch (Exception e)
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{
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logger.WarnException("Unable to verify priority", e);
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}
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}
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public virtual void PingServer(object sender)
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{
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if (!_iisProvider.ServerStarted) return;
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try
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{
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ICredentials identity = CredentialCache.DefaultCredentials;
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_httpProvider.DownloadString(_iisProvider.AppUrl, identity); //This should preload the home page, making the first load faster.
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string response = _httpProvider.DownloadString(_iisProvider.AppUrl + "/health", identity);
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if (!response.Contains("OK"))
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{
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throw new ServerException("Health services responded with an invalid response.");
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}
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if (_pingFailCounter > 0)
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{
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logger.Info("Application pool has been successfully recovered.");
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}
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_pingFailCounter = 0;
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}
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catch (Exception ex)
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{
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_pingFailCounter++;
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logger.Error("Application pool is not responding. Count: {0} - {1}", _pingFailCounter, ex.Message);
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if (_pingFailCounter >= 10)
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{
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_pingFailCounter = 0;
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_iisProvider.RestartServer();
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}
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}
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}
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private void ProgramExited(object sender, EventArgs e)
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{
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_iisProvider.StopServer();
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}
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public static void AppDomainException(Exception excepion)
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{
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Console.WriteLine("EPIC FAIL: {0}", excepion);
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logger.FatalException("EPIC FAIL: " + excepion.Message, excepion);
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}
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}
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} |