| static private TraceWarning ( string message ) : void | ||
| message | string | |
| 리턴 | void | |
public override void OnStop()
{
DiagnosticsHelper.TraceInformation("MongoWorkerRole onstop called");
try
{
// should we instead call Process.stop?
if ((mongodProcess != null) &&
!(mongodProcess.HasExited))
{
DatabaseHelper.StepdownIfNeeded(mongodPort);
}
}
catch (Exception e)
{
//Ignore exceptions caught on unmount
DiagnosticsHelper.TraceWarning("Exception in onstop - stepdown failed");
DiagnosticsHelper.TraceWarning(e.Message);
DiagnosticsHelper.TraceWarning(e.StackTrace);
}
try
{
// should we instead call Process.stop?
DiagnosticsHelper.TraceInformation("Shutdown called on mongod");
if ((mongodProcess != null) &&
!(mongodProcess.HasExited))
{
ShutdownMongo();
}
DiagnosticsHelper.TraceInformation("Shutdown completed on mongod");
}
catch (Exception e)
{
//Ignore exceptions caught on unmount
DiagnosticsHelper.TraceWarning("Exception in onstop - mongo shutdown");
DiagnosticsHelper.TraceWarning(e.Message);
DiagnosticsHelper.TraceWarning(e.StackTrace);
}
try
{
DiagnosticsHelper.TraceInformation("Unmount called on data drive");
if (mongoDataDrive != null)
{
mongoDataDrive.Unmount();
}
DiagnosticsHelper.TraceInformation("Unmount completed on data drive");
}
catch (Exception e)
{
//Ignore exceptions caught on unmount
DiagnosticsHelper.TraceWarning("Exception in onstop - unmount of data drive");
DiagnosticsHelper.TraceWarning(e.Message);
DiagnosticsHelper.TraceWarning(e.StackTrace);
}
DiagnosticsHelper.TraceInformation("Calling diagnostics shutdown");
// DiagnosticsHelper.ShutdownDiagnostics();
base.OnStop();
}
public override void Run()
{
DiagnosticsHelper.TraceInformation("MongoWorkerRole run method called");
var mongodRunning = CheckIfMongodRunning();
while (mongodRunning)
{
DatabaseHelper.RunCloudCommandLocally(instanceId, mongodPort);
Thread.Sleep(15000);
mongodRunning = CheckIfMongodRunning();
}
Thread.Sleep(60000);
DiagnosticsHelper.TraceWarning("MongoWorkerRole run method exiting");
}
internal static string GetMountedPathFromBlob(
string localCachePath,
string cloudDir,
string containerName,
string blobName,
int driveSize,
out CloudDrive mongoDrive)
{
DiagnosticsHelper.TraceInformation(string.Format("In mounting cloud drive for dir {0} on {1} with {2}",
cloudDir,
containerName,
blobName));
CloudStorageAccount storageAccount = CloudStorageAccount.FromConfigurationSetting(cloudDir);
var blobClient = storageAccount.CreateCloudBlobClient();
DiagnosticsHelper.TraceInformation("Get container");
// this should be the name of your replset
var driveContainer = blobClient.GetContainerReference(containerName);
// create blob container (it has to exist before creating the cloud drive)
try
{
driveContainer.CreateIfNotExist();
}
catch (Exception e)
{
DiagnosticsHelper.TraceInformation("Exception when creating container");
DiagnosticsHelper.TraceInformation(e.Message);
DiagnosticsHelper.TraceInformation(e.StackTrace);
}
var mongoBlobUri = blobClient.GetContainerReference(containerName).GetPageBlobReference(blobName).Uri.ToString();
DiagnosticsHelper.TraceInformation(string.Format("Blob uri obtained {0}", mongoBlobUri));
// create the cloud drive
mongoDrive = storageAccount.CreateCloudDrive(mongoBlobUri);
try
{
mongoDrive.Create(driveSize);
}
catch (Exception e)
{
// exception is thrown if all is well but the drive already exists
DiagnosticsHelper.TraceInformation("Exception when creating cloud drive. safe to ignore");
DiagnosticsHelper.TraceInformation(e.Message);
DiagnosticsHelper.TraceInformation(e.StackTrace);
}
DiagnosticsHelper.TraceInformation("Initialize cache");
var localStorage = RoleEnvironment.GetLocalResource(localCachePath);
CloudDrive.InitializeCache(localStorage.RootPath.TrimEnd('\\'),
localStorage.MaximumSizeInMegabytes);
// mount the drive and get the root path of the drive it's mounted as
try
{
DiagnosticsHelper.TraceInformation(string.Format("Trying to mount blob as azure drive on {0}",
RoleEnvironment.CurrentRoleInstance.Id));
var driveLetter = mongoDrive.Mount(localStorage.MaximumSizeInMegabytes,
DriveMountOptions.None);
DiagnosticsHelper.TraceInformation(string.Format("Write lock acquired on azure drive, mounted as {0}, on role instance",
driveLetter, RoleEnvironment.CurrentRoleInstance.Id));
return(driveLetter);
}
catch (Exception e)
{
DiagnosticsHelper.TraceWarning("could not acquire blob lock.");
DiagnosticsHelper.TraceWarning(e.Message);
DiagnosticsHelper.TraceWarning(e.StackTrace);
throw;
}
}