private void GetResult(string configFile, int taskNumber = 0)
{
int sleptSoFar = 0;
while (worker != null && worker.IsAlive)
{
Thread.Sleep(sleptSoFar += 500);
if (sleptSoFar > SleepTime)
{
Response.Redirect(Request.RawUrl);
}
}
var driver = new MapReduceDriver(configFile);
var fi = new FileInfo(driver.Tasks[0].Output.Location);
if (worker == null && fi.LastWriteTime.AddSeconds(5) < DateTime.Now)
{
Start(configFile);
Response.Redirect(Request.RawUrl);
}
SendFile(fi);
}
public StatusMessage Start(string config, IDictionary <string, string> parameters)
{
var statuslocal = new StatusMessage();
if (string.IsNullOrEmpty(config))
{
statuslocal.Type = StatusType.Error;
statuslocal.Message = "Invalid config name";
}
else if (worker != null)
{
statuslocal.Type = StatusType.Error;
statuslocal.Message = "A MapReduce is already running";
}
else
{
driver = new MapReduceDriver(Path.Combine("configs", config));
SetParameters(driver.Tasks, parameters);
worker = new Thread(new ThreadStart(MapReduceThread));
worker.Start();
status.ResultSetId = statuslocal.ResultSetId = Guid.NewGuid();
}
return(statuslocal);
}
private void MapReduceThread(object driver)
{
MapReduceDriver driverTyped = driver as MapReduceDriver;
driverTyped.Progress += new ProgressDetails(RefreshStatus);
driverTyped.Start();
foreach (var task in driverTyped.Tasks)
{
status.OutputFiles.Add(task.Output.Location);
}
//status.Type = UpdateType.None;
//status.Created = DateTime.Now;
//Session[StatusKey] = status;
}
private void Start(string configFile)
{
if (string.IsNullOrEmpty(configFile))
{
JsonMessage("config file name not provided.");
return;
}
if (worker != null)
{
return;
}
worker = new Thread(MapReduceThread);
var dr = new MapReduceDriver(configFile);
worker.Start(dr);
Session[WorkerThreadKey] = worker;
JsonMessage("Started");
}
