static void ExceptionHandler(object sender, UnhandledExceptionEventArgs args)
{
int result = unchecked ((int)LinqToDryadException.E_FAIL);
Exception e = args.ExceptionObject as Exception;
string errorString = "Unknown exception";
if (e != null)
{
result = System.Runtime.InteropServices.Marshal.GetHRForException(e);
errorString = e.ToString();
DryadLogger.LogCritical(errorString);
System.Threading.Thread.Sleep(10 * 1000);
}
DebugHelper.StopLogging(result, errorString, DateTime.Now.ToLocalTime(), dfsDirectory);
if (Debugger.IsAttached)
{
Debugger.Break();
}
else
{
DrLogging.WriteMiniDump();
}
// We need to Exit, since other threads in the GM
// are likely to still be running.
Environment.Exit(result);
}
public bool ParseQueryXml(string queryPlanFileName, Query query)
{
XmlNode version = null;
XmlDocument queryPlanDoc = new XmlDocument();
//
// Load query plan document
//
try
{
queryPlanDoc.Load(queryPlanFileName);
}
catch (Exception e)
{
DryadLogger.LogCritical(String.Format("Failed to load query plan: {0}: {1}", queryPlanFileName, e.ToString()));
return(false);
}
//
// Get DryadLinqVersion - absence used to indicate Argentia query plan
//
try
{
version = queryPlanDoc.DocumentElement.SelectSingleNode("DryadLinqVersion");
}
catch (System.Xml.XPath.XPathException e)
{
DryadLogger.LogCritical(String.Format("Failed to select node DryadLinqVersion from query plan: {0}: {1}", queryPlanFileName, e.ToString()));
return(false);
}
if (version == null)
{
DryadLogger.LogCritical(String.Format("Missing element 'DryadLinqVersion' in query plan: {0}", queryPlanFileName));
return(false);
}
//
// Parse query plan XML doc into Query
//
try
{
ParseQueryXmlLinqToDryad(queryPlanDoc, query);
}
catch (Exception e)
{
DryadLogger.LogCritical(String.Format("Failed to parse query plan: {0}: {1}", queryPlanFileName, e.ToString()));
return(false);
}
static int Main(string[] args)
{
Console.WriteLine("{0} starting up in {1}", Environment.CommandLine, Environment.CurrentDirectory);
bool waitForDebugger = false;
List <string> tempArgs = new List <string>();
// Record start time so we can report it once logging has been initialized
DateTime startTime = DateTime.Now.ToLocalTime();
// Set unhandled exception handler to catch anything thrown from
// Microsoft.Hpc.Query.GraphManager.dll
AppDomain currentDomain = AppDomain.CurrentDomain;
currentDomain.UnhandledException += new UnhandledExceptionEventHandler(ExceptionHandler);
dfsDirectory = null;
foreach (string arg in args)
{
if (String.Compare(arg, "--break", StringComparison.OrdinalIgnoreCase) == 0)
{
waitForDebugger = true;
}
else if (arg.StartsWith("--dfs="))
{
dfsDirectory = DebugHelper.AddDfsJobDirectoryFromArgs(arg);
}
else
{
tempArgs.Add(arg);
}
}
args = tempArgs.ToArray();
if (waitForDebugger)
{
DebugHelper.WaitForDebugger();
}
//
// Configure tracing
//
DebugHelper.InitializeLogging(startTime);
//
// Run the Graph Manager
//
int retCode = 0;
string errorString = null;
try
{
LinqToDryadJM jm = new LinqToDryadJM();
retCode = jm.Run(dfsDirectory, args, out errorString);
}
catch (Exception e)
{
retCode = System.Runtime.InteropServices.Marshal.GetHRForException(e);
if (retCode == 0)
{
errorString = e.ToString();
DryadLogger.LogCritical(errorString);
retCode = unchecked ((int)LinqToDryadException.E_FAIL);
}
else
{
errorString = String.Format("{0}: {1}", retCode, e);
DryadLogger.LogCritical(errorString);
}
System.Threading.Thread.Sleep(10 * 1000);
}
DebugHelper.StopLogging(retCode, errorString, DateTime.Now.ToLocalTime(), dfsDirectory);
// NOTE: We don't want to log critical errors twice, so here we're assuming that
// if the GM exited "gracefully" and returned an error code instead of throwing
// an exception, that it has already logged the error.
if (retCode != 0)
{
// If the Graph Manager already started executing, we need to exit the process.
// Exiting the thread (returning from Main) will not necessarily cause the GM's
// worker threads to exit
// TODO: Consider deleting temp output stream from DSC
// requires that we have access to the URI at this point, though
Environment.Exit(retCode);
}
//
// Cleanup all vertex tasks in case any became
// unreachable.
//
return(retCode);
}
public bool ParseCommandLineFlags(string[] args)
{
bool retVal = true;
for (int index = 0; index < args.Length; index++)
{
string arg = args[index].Substring(args[index].IndexOf("-") + 1);
OptionDescription option = null;
m_optionMap.TryGetValue(arg, out option);
if (option == null)
{
retVal = false;
break;
}
int optionIndex = option.m_optionIndex;
switch (optionIndex)
{
case (int)DryadLINQAppOptions.BDJAO_AMD64:
case (int)DryadLINQAppOptions.BDJAO_I386:
case (int)DryadLINQAppOptions.BDJAO_Retail:
case (int)DryadLINQAppOptions.BDJAO_Debug:
break;
case (int)DryadLINQAppOptions.DNAO_MaxAggregateInputs:
if ((index + 1) >= args.Length)
{
DryadLogger.LogCritical(String.Format("The argument for option '{0}' was missing.\n", args[index]));
retVal = false;
}
else
{
int maxInputs;
if (!Int32.TryParse(args[index + 1], out maxInputs))
{
DryadLogger.LogCritical(String.Format("The argument '{0}' for option '{1}' could not be parsed as an integer.\n", args[index + 1], args[index]));
retVal = false;
}
else
{
m_maxAggregateInputs = maxInputs;
index++;
}
}
break;
case (int)DryadLINQAppOptions.DNAO_MaxAggregateFilterInputs:
if ((index + 1) >= args.Length)
{
DryadLogger.LogCritical(String.Format("The argument for option '{0}' was missing.\n", args[index]));
retVal = false;
}
else
{
int maxInputs;
if (!Int32.TryParse(args[index + 1], out maxInputs))
{
DryadLogger.LogCritical(String.Format("The argument '{0}' for option '{1}' could not be parsed as an integer.\n", args[index + 1], args[index]));
retVal = false;
}
else
{
m_maxAggregateFilterInputs = maxInputs;
index++;
}
}
break;
case (int)DryadLINQAppOptions.DNAO_AggregateThreshold:
if ((index + 1) >= args.Length)
{
DryadLogger.LogCritical(String.Format("The argument for option '{0}' was missing.\n", args[index]));
retVal = false;
}
else
{
UInt64 threshold;
if (!UInt64.TryParse(args[index + 1], out threshold))
{
DryadLogger.LogCritical(String.Format("The argument '{0}' for option '{1}' could not be parsed as a UIN64.\n", args[index + 1], args[index]));
retVal = false;
}
else
{
m_aggregateThreshold = threshold;
index++;
}
}
break;
case (int)DryadLINQAppOptions.DNAO_NoClusterAffinity:
m_clusterAffinity = false;
break;
default:
DryadLogger.LogCritical(String.Format("Unknown command-line option {0}\n", optionIndex));
retVal = false;
break;
}
}
if (!retVal)
{
PrintUsage(args[0]);
}
return(retVal);
}
//
// Main Dryad LINQ execution stuff
//
public int ExecLinqToDryad(Uri dfsDirectory, string[] args, out string errorString)
{
//
// must be at least two arguments (program name and query XML file name)
//
if (args.Length < 2)
{
errorString = "Must provide at least query XML file name and VertexHost executable.";
DryadLogger.LogCritical(errorString);
return(-1);
}
//
// break if --break is included in arguments (and eliminate it, as it is not known downstream)
//
if (ConsumeSingleArgument("--break", ref args))
{
DebugHelper.WaitForDebugger();
}
// this is where we ensure the right type of scheduler is registered
Microsoft.Research.Dryad.LocalScheduler.Registration.Ensure();
//
// parse the XML input, producing a DryadLINQ Query
//
Query query = new Query();
QueryPlanParser parser = new QueryPlanParser();
if (!parser.ParseQueryXml(args[1], query))
{
errorString = "Invalid query plan";
DryadLogger.LogCritical(errorString);
return(-1);
}
//
// upload the query plan to the job DFS directory for the benefit of debug tools
//
if (dfsDirectory != null)
{
DebugHelper.UploadToDfs(dfsDirectory, args[1]);
}
//
// build internal app arguments
//
List <string> internalArgs = new List <string>();
//
// add the XmlExecHost args to the internal app arguments
//
foreach (string xmlExecHostArg in query.xmlExecHostArgs)
{
if (xmlExecHostArg == "--break")
{
DebugHelper.WaitForDebugger();
}
else
{
internalArgs.Add(xmlExecHostArg);
}
}
//
// combine internal arguments with any additional arguments received on the command line
// don't include argv[0] and argv[1] (program name and query XML file name)
//
int internalArgc = (int)internalArgs.Count;
int externalArgc = args.Length - 2; // don't include argv[0] and argv[1]
int combinedArgc = internalArgc + externalArgc;
string[] combinedArgv = new string[combinedArgc];
string msg = "";
// internal arguments first
for (int i = 0; i < internalArgc; i++)
{
combinedArgv[i] = internalArgs[i];
msg += String.Format("{0} ", combinedArgv[i]);
}
// then external arguments
for (int i = 0; i < externalArgc; i++)
{
combinedArgv[i + internalArgc] = args[i + 2]; // don't include argv[0] and argv[1]
msg += String.Format("{0} ", combinedArgv[i + internalArgc]);
}
DryadLogger.LogInformation(String.Format("Arguments: {0}", msg));
string jobClass = "DryadLINQ";
string exeName = args[0];
// create app and run it
//
DrGraphParameters p = DrDefaultParameters.Make(exeName, jobClass, query.enableSpeculativeDuplication);
foreach (DrIReporter reporter in DebugHelper.Reporters())
{
p.m_reporters.Add(reporter);
}
p.m_intermediateCompressionMode = query.intermediateDataCompression;
DrGraphExecutor graphExecutor = new DrGraphExecutor();
DrGraph graph = graphExecutor.Initialize(p);
if (graph == null)
{
errorString = "Failed to initialize Graph Executor";
DryadLogger.LogCritical(errorString);
return(-1);
}
DryadLINQApp app = new DryadLINQApp(graph);
// Initialize with arguments
app.SetXmlFileName(args[1]);
if (!app.ParseCommandLineFlags(combinedArgv))
{
errorString = "Bad command-line options";
DryadLogger.LogCritical(errorString);
return(-1);
}
// Build graph from query plan
GraphBuilder builder = new GraphBuilder();
builder.BuildGraphFromQuery(app, query);
// Run the app
DryadLogger.LogInformation("Running the app");
graphExecutor.Run();
DrError exitStatus = graphExecutor.Join();
DryadLogger.LogInformation("Finished running the app");
if (exitStatus == null || exitStatus.m_code == 0)
{
FinalizeExecution(query, graph);
DryadLogger.LogInformation("Application completed successfully.");
errorString = null;
return(0);
}
else
{
DryadLogger.LogCritical(String.Format("Application failed with error code 0x{0:X8}.\n", exitStatus.m_code));
errorString = exitStatus.ToFullTextNative();
return(exitStatus.m_code);
}
}
