public void SendHeartbeat()
{
if (fail) return;
if (freeze)
{
freezed.Enqueue(() => SendHeartbeat());
return;
}
while (true)
{
try
{
Heartbeat heartbeat = new Heartbeat(MyWeight(), new Dictionary<string, Weight>(weights));
//Console.WriteLine("HEARTBEAT TO " + master);
GarbageCollected toDelete = metadatas[master].Heartbeat(id, heartbeat);
foreach (string localFilename in toDelete)
{
Console.WriteLine("GARBAGE COLLECTOR = " + localFilename);
FileData ignoredFileData; files.TryRemove(localFilename, out ignoredFileData);
Weight ignoredStats; weights.TryRemove(localFilename, out ignoredStats);
}
return;
}
catch (ProcessFailedException)
{
RandomMaster();
}
catch (NotTheMasterException e)
{
master = e.NewMaster;
}
}
}
public GarbageCollected Heartbeat(string dataServerId, Heartbeat heartbeat)
{
if (fail) throw new ProcessFailedException(id);
if (ImNoMaster()) throw new NotTheMasterException(id, master);
//Console.WriteLine("HEARTBEAT FROM " + dataServerId);
if (dataServers.Contains(dataServerId))
{
GarbageCollected toDelete = new GarbageCollected();
// update data server weight
dataServers.Touch(dataServerId, heartbeat.DataServerWeight);
foreach (var entry in heartbeat.FileWeights)
{
string localFilename = entry.Key;
Weight fileWeight = entry.Value;
// garbage collection
if (!dataServers.ContainsFile(dataServerId, localFilename))
{
toDelete.Add(localFilename);
}
else
{
// update file weights
dataServers.UpdateFileWeight(dataServerId, localFilename, fileWeight);
}
}
// pending files if this data server returned
if (dataServers.Failed(dataServerId))
{
CheckPending(dataServerId);
}
return toDelete;
}
return null;
}
