119 lines
3.7 KiB
C#
119 lines
3.7 KiB
C#
using System;
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using System.Diagnostics;
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using System.Runtime.Remoting;
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using System.Timers;
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using NLog;
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using Ninject;
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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 WebClientProvider _webClientProvider;
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private int _pingFailCounter;
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private Timer _pingTimer;
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[Inject]
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public MonitoringProvider(ProcessProvider processProvider, IISProvider iisProvider,
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WebClientProvider webClientProvider)
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{
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_processProvider = processProvider;
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_iisProvider = iisProvider;
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_webClientProvider = webClientProvider;
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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));
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AppDomain.CurrentDomain.ProcessExit += ProgramExited;
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AppDomain.CurrentDomain.DomainUnload += ProgramExited;
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var prioCheckTimer = new Timer(5000);
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prioCheckTimer.Elapsed += EnsurePriority;
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prioCheckTimer.Enabled = true;
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_pingTimer = new Timer(60000) {AutoReset = true};
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_pingTimer.Elapsed += (PingServer);
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_pingTimer.Start();
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}
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public virtual void EnsurePriority(object sender, ElapsedEventArgs e)
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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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public virtual void PingServer(object sender, ElapsedEventArgs e)
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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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string response = _webClientProvider.DownloadString(_iisProvider.AppUrl + "/health");
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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.ErrorException("Application pool is not responding. Count " + _pingFailCounter, ex);
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if (_pingFailCounter > 2)
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{
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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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private static void AppDomainException(object excepion)
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{
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Console.WriteLine("EPIC FAIL: {0}", excepion);
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Logger.Fatal("EPIC FAIL: {0}", excepion);
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#if RELEASE
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new Client
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{
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ApiKey = "43BBF60A-EB2A-4C1C-B09E-422ADF637265",
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ApplicationName = "NZBDrone",
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CurrentException = excepion as Exception
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}.Submit();
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#endif
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}
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}
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} |