public void StartJobRun(TriggeredJob triggeredJob, JobSettings jobSettings, string trigger, Action <string, string> reportAction)
{
JobSettings = jobSettings;
if (Settings.IsWebJobsStopped())
{
throw new WebJobsStoppedException();
}
if (!_lockFile.Lock())
{
throw new ConflictException();
}
TriggeredJobRunLogger logger = TriggeredJobRunLogger.LogNewRun(triggeredJob, trigger, Environment, TraceFactory, Settings);
Debug.Assert(logger != null);
try
{
if (_currentRunningJobWaitHandle != null)
{
_currentRunningJobWaitHandle.Dispose();
_currentRunningJobWaitHandle = null;
}
_currentRunningJobWaitHandle = new ManualResetEvent(false);
var tracer = TraceFactory.GetTracer();
var step = tracer.Step("Run {0} {1}", triggeredJob.JobType, triggeredJob.Name);
ThreadPool.QueueUserWorkItem(_ =>
{
try
{
InitializeJobInstance(triggeredJob, logger);
RunJobInstance(triggeredJob, logger, logger.Id, trigger, tracer);
}
catch (Exception ex)
{
logger.LogError("WebJob run failed due to: " + ex);
}
finally
{
step.Dispose();
logger.ReportEndRun();
_lockFile.Release();
reportAction(triggeredJob.Name, logger.Id);
_currentRunningJobWaitHandle.Set();
}
});
}
catch (Exception ex)
{
logger.LogError("Failed to start job due to: " + ex);
_lockFile.Release();
throw;
}
}
private LockFile AcquireSessionLock(MonitoringSession session, string methodName = "")
{
string sessionFilePath = (session.EndDate != DateTime.MinValue.ToUniversalTime()) ? GetCpuMonitoringPath(MonitoringSessionDirectories.Completed) : GetCpuMonitoringPath(MonitoringSessionDirectories.Active);
string lockFilePath = sessionFilePath + ".lock";
LockFile _lockFile = new LockFile(lockFilePath);
int loopCount = 0;
int lognum = 1;
int maximumWaitTimeInSeconds = 15 * 60;
while (!_lockFile.Lock($"AcquireSessionLock by {methodName} on {Environment.MachineName}") && loopCount <= maximumWaitTimeInSeconds)
{
++loopCount;
if (loopCount > lognum * 120)
{
++lognum;
Logger.LogCpuMonitoringVerboseEvent($"Waiting to acquire the lock on session file , loop {lognum}", session.SessionId);
}
Thread.Sleep(1000);
}
if (loopCount == maximumWaitTimeInSeconds)
{
Logger.LogCpuMonitoringVerboseEvent($"Deleting the lock file as it seems to be in an orphaned stage", session.SessionId);
_lockFile.Release();
return(null);
}
return(_lockFile);
}
public void AsyncLock_BasicTest()
{
for (int i = 0; i < 2; i++)
{
// Acquire
Assert.Equal(false, _lockFile.IsHeld);
Assert.Equal(true, _lockFile.Lock());
// Test
Assert.Equal(true, _lockFile.IsHeld);
Assert.Equal(false, _lockFile.Lock());
// Release
_lockFile.Release();
Assert.Equal(false, _lockFile.IsHeld);
}
}
public void StartJobRun(TriggeredJob triggeredJob)
{
if (Settings.IsWebJobsStopped())
{
throw new WebJobsStoppedException();
}
if (!_lockFile.Lock())
{
throw new ConflictException();
}
TriggeredJobRunLogger logger = TriggeredJobRunLogger.LogNewRun(triggeredJob, Environment, TraceFactory, Settings);
Debug.Assert(logger != null);
try
{
InitializeJobInstance(triggeredJob, logger);
ThreadPool.QueueUserWorkItem(_ =>
{
try
{
RunJobInstance(triggeredJob, logger, logger.Id);
}
finally
{
logger.ReportEndRun();
_lockFile.Release();
}
});
}
catch (Exception ex)
{
logger.LogError("Failed to start job due to: " + ex);
_lockFile.Release();
throw;
}
}
public void SaveSession(MonitoringSession session, LockFile lockFile = null)
{
if (lockFile == null)
{
lockFile = AcquireSessionLock(session);
}
string cpuMonitorCompletedPath = GetCpuMonitoringPath(MonitoringSessionDirectories.Completed);
cpuMonitorCompletedPath = Path.Combine(cpuMonitorCompletedPath, session.SessionId + ".json");
session.ToJsonFile(cpuMonitorCompletedPath);
if (lockFile != null)
{
lockFile.Release();
}
}
private void ReleaseSingletonLock()
{
_singletonLock.Release();
}
private void ReleaseSingletonLock()
{
_singletonLock.Release();
LogInformation("WebJob singleton lock is released");
}