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TXProofServ.cxx
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TXProofServ.cxx
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// @(#)root/proofx:$Id$
// Author: Gerardo Ganis 12/12/2005
/*************************************************************************
* Copyright (C) 1995-2005, Rene Brun and Fons Rademakers. *
* All rights reserved. *
* *
* For the licensing terms see $ROOTSYS/LICENSE. *
* For the list of contributors see $ROOTSYS/README/CREDITS. *
*************************************************************************/
//////////////////////////////////////////////////////////////////////////
// //
// TXProofServ //
// //
// TXProofServ is the XRD version of the PROOF server. It differs from //
// TXProofServ only for the underlying connection technology //
// //
//////////////////////////////////////////////////////////////////////////
#include "RConfigure.h"
#include "RConfig.h"
#include "Riostream.h"
#ifdef WIN32
#include <io.h>
typedef long off_t;
#endif
#include <sys/types.h>
#include <netinet/in.h>
#include <utime.h>
#include "TXProofServ.h"
#include "TObjString.h"
#include "TEnv.h"
#include "TError.h"
#include "TException.h"
#include "THashList.h"
#include "TInterpreter.h"
#include "TParameter.h"
#include "TProofDebug.h"
#include "TProof.h"
#include "TProofPlayer.h"
#include "TQueryResultManager.h"
#include "TRegexp.h"
#include "TClass.h"
#include "TROOT.h"
#include "TSystem.h"
#include "TPluginManager.h"
#include "TXSocketHandler.h"
#include "TXUnixSocket.h"
#include "compiledata.h"
#include "TProofNodeInfo.h"
#include "XProofProtocol.h"
#include <XrdClient/XrdClientConst.hh>
#include <XrdClient/XrdClientEnv.hh>
// debug hook
static volatile Int_t gProofServDebug = 1;
//----- SigPipe signal handler -------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
class TXProofServSigPipeHandler : public TSignalHandler {
TXProofServ *fServ;
public:
TXProofServSigPipeHandler(TXProofServ *s) : TSignalHandler(kSigInterrupt, kFALSE)
{ fServ = s; }
Bool_t Notify();
};
////////////////////////////////////////////////////////////////////////////////
Bool_t TXProofServSigPipeHandler::Notify()
{
fServ->HandleSigPipe();
return kTRUE;
}
//----- Termination signal handler ---------------------------------------------
////////////////////////////////////////////////////////////////////////////////
class TXProofServTerminationHandler : public TSignalHandler {
TXProofServ *fServ;
public:
TXProofServTerminationHandler(TXProofServ *s)
: TSignalHandler(kSigTermination, kFALSE) { fServ = s; }
Bool_t Notify();
};
////////////////////////////////////////////////////////////////////////////////
Bool_t TXProofServTerminationHandler::Notify()
{
Printf("Received SIGTERM: terminating");
fServ->HandleTermination();
return kTRUE;
}
//----- Seg violation signal handler ---------------------------------------------
////////////////////////////////////////////////////////////////////////////////
class TXProofServSegViolationHandler : public TSignalHandler {
TXProofServ *fServ;
public:
TXProofServSegViolationHandler(TXProofServ *s)
: TSignalHandler(kSigSegmentationViolation, kFALSE) { fServ = s; }
Bool_t Notify();
};
////////////////////////////////////////////////////////////////////////////////
Bool_t TXProofServSegViolationHandler::Notify()
{
Printf("**** ");
Printf("**** Segmentation violation: terminating ****");
Printf("**** ");
fServ->HandleTermination();
return kTRUE;
}
//----- Input handler for messages from parent or master -----------------------
////////////////////////////////////////////////////////////////////////////////
class TXProofServInputHandler : public TFileHandler {
TXProofServ *fServ;
public:
TXProofServInputHandler(TXProofServ *s, Int_t fd) : TFileHandler(fd, 1)
{ fServ = s; }
Bool_t Notify();
Bool_t ReadNotify() { return Notify(); }
};
////////////////////////////////////////////////////////////////////////////////
Bool_t TXProofServInputHandler::Notify()
{
fServ->HandleSocketInput();
// This request has been completed: remove the client ID from the pipe
((TXUnixSocket *) fServ->GetSocket())->RemoveClientID();
return kTRUE;
}
ClassImp(TXProofServ)
// Hook to the constructor. This is needed to avoid using the plugin manager
// which may create problems in multi-threaded environments.
extern "C" {
TApplication *GetTXProofServ(Int_t *argc, char **argv, FILE *flog)
{ return new TXProofServ(argc, argv, flog); }
}
////////////////////////////////////////////////////////////////////////////////
/// Main constructor
TXProofServ::TXProofServ(Int_t *argc, char **argv, FILE *flog)
: TProofServ(argc, argv, flog)
{
fInterruptHandler = 0;
fInputHandler = 0;
fTerminated = kFALSE;
// TODO:
// Int_t useFIFO = 0;
/* if (GetParameter(fProof->GetInputList(), "PROOF_UseFIFO", useFIFO) != 0) {
if (useFIFO == 1)
Info("", "enablig use of FIFO (if allowed by the server)");
else
Warning("", "unsupported strategy index (%d): ignore", strategy);
}
*/
}
////////////////////////////////////////////////////////////////////////////////
/// Finalize the server setup. If master, create the TProof instance to talk
/// the worker or submaster nodes.
/// Return 0 on success, -1 on error
Int_t TXProofServ::CreateServer()
{
Bool_t xtest = (Argc() > 3 && !strcmp(Argv(3), "test")) ? kTRUE : kFALSE;
if (gProofDebugLevel > 0)
Info("CreateServer", "starting%s server creation", (xtest ? " test" : ""));
// Get file descriptor for log file
if (fLogFile) {
// Use the file already open by pmain
if ((fLogFileDes = fileno(fLogFile)) < 0) {
Error("CreateServer", "resolving the log file description number");
return -1;
}
// Hide the session start-up logs unless we are in verbose mode
if (gProofDebugLevel <= 0)
lseek(fLogFileDes, (off_t) 0, SEEK_END);
}
// Global location string in TXSocket
TXSocket::SetLocation((IsMaster()) ? "master" : "slave");
// Set debug level in XrdClient
EnvPutInt(NAME_DEBUG, gEnv->GetValue("XNet.Debug", 0));
// Get socket to be used to call back our xpd
if (xtest) {
// test session, just send the protocol version on the open pipe
// and exit
if (!(fSockPath = gSystem->Getenv("ROOTOPENSOCK"))) {
Error("CreateServer", "test: socket setup by xpd undefined");
return -1;
}
Int_t fpw = (Int_t) strtol(fSockPath.Data(), 0, 10);
int proto = htonl(kPROOF_Protocol);
fSockPath = "";
if (write(fpw, &proto, sizeof(proto)) != sizeof(proto)) {
Error("CreateServer", "test: sending protocol number");
return -1;
}
exit(0);
} else {
fSockPath = gEnv->GetValue("ProofServ.OpenSock", "");
if (fSockPath.Length() <= 0) {
Error("CreateServer", "socket setup by xpd undefined");
return -1;
}
TString entity = gEnv->GetValue("ProofServ.Entity", "");
if (entity.Length() > 0)
fSockPath.Insert(0,Form("%s/", entity.Data()));
}
// Get open socket descriptor, if any
Int_t sockfd = -1;
const char *opensock = gSystem->Getenv("ROOTOPENSOCK");
if (opensock && strlen(opensock) > 0) {
TSystem::ResetErrno();
sockfd = (Int_t) strtol(opensock, 0, 10);
if (TSystem::GetErrno() == ERANGE) {
sockfd = -1;
Warning("CreateServer", "socket descriptor: wrong conversion from '%s'", opensock);
}
if (sockfd > 0 && gProofDebugLevel > 0)
Info("CreateServer", "using open connection (descriptor %d)", sockfd);
}
// Get the sessions ID
Int_t psid = gEnv->GetValue("ProofServ.SessionID", -1);
if (psid < 0) {
Error("CreateServer", "Session ID undefined");
return -1;
}
// Call back the server
fSocket = new TXUnixSocket(fSockPath, psid, -1, this, sockfd);
if (!fSocket || !(fSocket->IsValid())) {
Error("CreateServer", "Failed to open connection to XrdProofd coordinator");
return -1;
}
// Set compression level, if any
fSocket->SetCompressionSettings(fCompressMsg);
// Set the title for debugging
TString tgt("client");
if (fOrdinal != "0") {
tgt = fOrdinal;
if (tgt.Last('.') != kNPOS) tgt.Remove(tgt.Last('.'));
}
fSocket->SetTitle(tgt);
// Set the this as reference of this socket
((TXSocket *)fSocket)->fReference = this;
// Get socket descriptor
Int_t sock = fSocket->GetDescriptor();
// Install message input handlers
fInputHandler =
TXSocketHandler::GetSocketHandler(new TXProofServInputHandler(this, sock), fSocket);
gSystem->AddFileHandler(fInputHandler);
// Get the client ID
Int_t cid = gEnv->GetValue("ProofServ.ClientID", -1);
if (cid < 0) {
Error("CreateServer", "Client ID undefined");
SendLogFile();
return -1;
}
((TXSocket *)fSocket)->SetClientID(cid);
// debug hooks
if (IsMaster()) {
// wait (loop) in master to allow debugger to connect
if (gEnv->GetValue("Proof.GdbHook",0) == 1) {
while (gProofServDebug)
;
}
} else {
// wait (loop) in slave to allow debugger to connect
if (gEnv->GetValue("Proof.GdbHook",0) == 2) {
while (gProofServDebug)
;
}
}
if (gProofDebugLevel > 0)
Info("CreateServer", "Service: %s, ConfDir: %s, IsMaster: %d",
fService.Data(), fConfDir.Data(), (Int_t)fMasterServ);
if (Setup() == -1) {
// Setup failure
LogToMaster();
SendLogFile();
Terminate(0);
return -1;
}
if (!fLogFile) {
RedirectOutput();
// If for some reason we failed setting a redirection file for the logs
// we cannot continue
if (!fLogFile || (fLogFileDes = fileno(fLogFile)) < 0) {
LogToMaster();
SendLogFile(-98);
Terminate(0);
return -1;
}
}
// Send message of the day to the client
if (IsMaster()) {
if (CatMotd() == -1) {
LogToMaster();
SendLogFile(-99);
Terminate(0);
return -1;
}
}
// Everybody expects iostream to be available, so load it...
ProcessLine("#include <iostream>", kTRUE);
ProcessLine("#include <string>",kTRUE); // for std::string iostream.
// Load user functions
const char *logon;
logon = gEnv->GetValue("Proof.Load", (char *)0);
if (logon) {
char *mac = gSystem->Which(TROOT::GetMacroPath(), logon, kReadPermission);
if (mac)
ProcessLine(Form(".L %s", logon), kTRUE);
delete [] mac;
}
// Execute logon macro
logon = gEnv->GetValue("Proof.Logon", (char *)0);
if (logon && !NoLogOpt()) {
char *mac = gSystem->Which(TROOT::GetMacroPath(), logon, kReadPermission);
if (mac)
ProcessFile(logon);
delete [] mac;
}
// Save current interpreter context
gInterpreter->SaveContext();
gInterpreter->SaveGlobalsContext();
// if master, start slave servers
if (IsMaster()) {
TString master;
if (fConfFile.BeginsWith("lite:")) {
master = "lite://";
} else {
master.Form("proof://%s@__master__", fUser.Data());
// Add port, if defined
Int_t port = gEnv->GetValue("ProofServ.XpdPort", -1);
if (port > -1) {
master += ":";
master += port;
}
}
// Make sure that parallel startup via threads is not active
// (it is broken for xpd because of the locks on gInterpreterMutex)
gEnv->SetValue("Proof.ParallelStartup", 0);
// Get plugin manager to load appropriate TProof from
TPluginManager *pm = gROOT->GetPluginManager();
if (!pm) {
Error("CreateServer", "no plugin manager found");
SendLogFile(-99);
Terminate(0);
return -1;
}
// Find the appropriate handler
TPluginHandler *h = pm->FindHandler("TProof", fConfFile);
if (!h) {
Error("CreateServer", "no plugin found for TProof with a"
" config file of '%s'", fConfFile.Data());
SendLogFile(-99);
Terminate(0);
return -1;
}
// load the plugin
if (h->LoadPlugin() == -1) {
Error("CreateServer", "plugin for TProof could not be loaded");
SendLogFile(-99);
Terminate(0);
return -1;
}
// Make instance of TProof
if (fConfFile.BeginsWith("lite:")) {
// Remove input and signal handlers to avoid spurious "signals"
// during startup
gSystem->RemoveFileHandler(fInputHandler);
fProof = reinterpret_cast<TProof*>(h->ExecPlugin(6, master.Data(),
0, 0,
fLogLevel,
fSessionDir.Data(), 0));
// Re-enable input and signal handlers
gSystem->AddFileHandler(fInputHandler);
} else {
fProof = reinterpret_cast<TProof*>(h->ExecPlugin(5, master.Data(),
fConfFile.Data(),
fConfDir.Data(),
fLogLevel,
fTopSessionTag.Data()));
}
// Save worker info
if (fProof) fProof->SaveWorkerInfo();
if (!fProof || (fProof && !fProof->IsValid())) {
Error("CreateServer", "plugin for TProof could not be executed");
FlushLogFile();
delete fProof;
fProof = 0;
SendLogFile(-99);
Terminate(0);
return -1;
}
// Find out if we are a master in direct contact only with workers
fEndMaster = fProof->IsEndMaster();
SendLogFile();
}
// Setup the shutdown timer
if (!fShutdownTimer) {
// Check activity on socket every 5 mins
fShutdownTimer = new TShutdownTimer(this, 300000);
fShutdownTimer->Start(-1, kFALSE);
}
// Check if schema evolution is effective: clients running versions <=17 do not
// support that: send a warning message
if (fProtocol <= 17) {
TString msg;
msg.Form("Warning: client version is too old: automatic schema evolution is ineffective.\n"
" This may generate compatibility problems between streamed objects.\n"
" The advise is to move to ROOT >= 5.21/02 .");
SendAsynMessage(msg.Data());
}
// Setup the idle timer
if (IsMaster() && !fIdleTOTimer) {
// Check activity on socket every 5 mins
Int_t idle_to = gEnv->GetValue("ProofServ.IdleTimeout", -1);
if (idle_to > 0) {
fIdleTOTimer = new TIdleTOTimer(this, idle_to * 1000);
fIdleTOTimer->Start(-1, kTRUE);
if (gProofDebugLevel > 0)
Info("CreateServer", " idle timer started (%d secs)", idle_to);
} else if (gProofDebugLevel > 0) {
Info("CreateServer", " idle timer not started (no idle timeout requested)");
}
}
// Done
return 0;
}
////////////////////////////////////////////////////////////////////////////////
/// Cleanup. Not really necessary since after this dtor there is no
/// live anyway.
TXProofServ::~TXProofServ()
{
delete fSocket;
}
////////////////////////////////////////////////////////////////////////////////
/// Handle high priority data sent by the master or client.
void TXProofServ::HandleUrgentData()
{
// Real-time notification of messages
TProofServLogHandlerGuard hg(fLogFile, fSocket, "", fRealTimeLog);
// Get interrupt
Bool_t fw = kFALSE;
Int_t iLev = ((TXSocket *)fSocket)->GetInterrupt(fw);
if (iLev < 0) {
Error("HandleUrgentData", "error receiving interrupt");
return;
}
PDB(kGlobal, 2)
Info("HandleUrgentData", "got interrupt: %d\n", iLev);
if (fProof)
fProof->SetActive();
switch (iLev) {
case TProof::kPing:
PDB(kGlobal, 2)
Info("HandleUrgentData", "*** Ping");
// If master server, propagate interrupt to slaves
if (fw && IsMaster()) {
Int_t nbad = fProof->fActiveSlaves->GetSize() - fProof->Ping();
if (nbad > 0) {
Info("HandleUrgentData","%d slaves did not reply to ping",nbad);
}
}
// Touch the admin path to show we are alive
if (fAdminPath.IsNull()) {
fAdminPath = gEnv->GetValue("ProofServ.AdminPath", "");
}
if (!fAdminPath.IsNull()) {
if (!fAdminPath.EndsWith(".status")) {
// Update file time stamps
if (utime(fAdminPath.Data(), 0) != 0)
Info("HandleUrgentData", "problems touching path: %s", fAdminPath.Data());
else
PDB(kGlobal, 2)
Info("HandleUrgentData", "touching path: %s", fAdminPath.Data());
} else {
// Update the status in the file
// 0 idle
// 1 running
// 2 being terminated (currently unused)
// 3 queued
// 4 idle timed-out
Int_t uss_rc = UpdateSessionStatus(-1);
if (uss_rc != 0)
Error("HandleUrgentData", "problems updating status path: %s (errno: %d)", fAdminPath.Data(), -uss_rc);
}
} else {
Info("HandleUrgentData", "admin path undefined");
}
break;
case TProof::kHardInterrupt:
Info("HandleUrgentData", "*** Hard Interrupt");
// If master server, propagate interrupt to slaves
if (fw && IsMaster())
fProof->Interrupt(TProof::kHardInterrupt);
// Flush input socket
((TXSocket *)fSocket)->Flush();
if (IsMaster())
SendLogFile();
break;
case TProof::kSoftInterrupt:
Info("HandleUrgentData", "Soft Interrupt");
// If master server, propagate interrupt to slaves
if (fw && IsMaster())
fProof->Interrupt(TProof::kSoftInterrupt);
Interrupt();
if (IsMaster())
SendLogFile();
break;
case TProof::kShutdownInterrupt:
Info("HandleUrgentData", "Shutdown Interrupt");
// When returning for here connection are closed
HandleTermination();
break;
default:
Error("HandleUrgentData", "unexpected type: %d", iLev);
break;
}
if (fProof) fProof->SetActive(kFALSE);
}
////////////////////////////////////////////////////////////////////////////////
/// Called when the client is not alive anymore; terminate the session.
void TXProofServ::HandleSigPipe()
{
// Real-time notification of messages
Info("HandleSigPipe","got sigpipe ... do nothing");
}
////////////////////////////////////////////////////////////////////////////////
/// Called when the client is not alive anymore; terminate the session.
void TXProofServ::HandleTermination()
{
// If master server, propagate interrupt to slaves
// (shutdown interrupt send internally).
if (IsMaster()) {
// If not idle, try first to stop processing
if (!fIdle) {
// Remove pending requests
fWaitingQueries->Delete();
// Interrupt the current monitor
fProof->InterruptCurrentMonitor();
// Do not wait for ever, but al least 20 seconds
Long_t timeout = gEnv->GetValue("Proof.ShutdownTimeout", 60);
timeout = (timeout > 20) ? timeout : 20;
// Processing will be aborted
fProof->StopProcess(kTRUE, (Long_t) (timeout / 2));
// Receive end-of-processing messages, but do not wait for ever
fProof->Collect(TProof::kActive, timeout);
// Still not idle
if (!fIdle)
Warning("HandleTermination","processing could not be stopped");
}
// Close the session
if (fProof)
fProof->Close("S");
}
Terminate(0); // will not return from here....
}
////////////////////////////////////////////////////////////////////////////////
/// Print the ProofServ logo on standard output.
/// Return 0 on success, -1 on error
Int_t TXProofServ::Setup()
{
char str[512];
if (IsMaster()) {
snprintf(str, 512, "**** Welcome to the PROOF server @ %s ****", gSystem->HostName());
} else {
snprintf(str, 512, "**** PROOF worker server @ %s started ****", gSystem->HostName());
}
if (fSocket->Send(str) != 1+static_cast<Int_t>(strlen(str))) {
Error("Setup", "failed to send proof server startup message");
return -1;
}
// Get client protocol
if ((fProtocol = gEnv->GetValue("ProofServ.ClientVersion", -1)) < 0) {
Error("Setup", "remote proof protocol missing");
return -1;
}
// The local user
fUser = gEnv->GetValue("ProofServ.Entity", "");
if (fUser.Length() >= 0) {
if (fUser.Contains(":"))
fUser.Remove(fUser.Index(":"));
if (fUser.Contains("@"))
fUser.Remove(fUser.Index("@"));
} else {
UserGroup_t *pw = gSystem->GetUserInfo();
if (pw) {
fUser = pw->fUser;
delete pw;
}
}
// Work dir and ...
if (IsMaster()) {
TString cf = gEnv->GetValue("ProofServ.ProofConfFile", "");
if (cf.Length() > 0)
fConfFile = cf;
}
fWorkDir = gEnv->GetValue("ProofServ.Sandbox", Form("~/%s", kPROOF_WorkDir));
// Get Session tag
if ((fSessionTag = gEnv->GetValue("ProofServ.SessionTag", "-1")) == "-1") {
Error("Setup", "Session tag missing");
return -1;
}
// Get top session tag, i.e. the tag of the PROOF session
if ((fTopSessionTag = gEnv->GetValue("ProofServ.TopSessionTag", "-1")) == "-1") {
fTopSessionTag = "";
// Try to extract it from log file path (for backward compatibility)
if (gSystem->Getenv("ROOTPROOFLOGFILE")) {
fTopSessionTag = gSystem->DirName(gSystem->Getenv("ROOTPROOFLOGFILE"));
Ssiz_t lstl;
if ((lstl = fTopSessionTag.Last('/')) != kNPOS) fTopSessionTag.Remove(0, lstl + 1);
if (fTopSessionTag.BeginsWith("session-")) {
fTopSessionTag.Remove(0, strlen("session-"));
} else {
fTopSessionTag = "";
}
}
if (fTopSessionTag.IsNull()) {
Error("Setup", "top session tag missing");
return -1;
}
}
// Make sure the process ID is in the tag
TString spid = Form("-%d", gSystem->GetPid());
if (!fSessionTag.EndsWith(spid)) {
Int_t nd = 0;
if ((nd = fSessionTag.CountChar('-')) >= 2) {
Int_t id = fSessionTag.Index("-", fSessionTag.Index("-") + 1);
if (id != kNPOS) fSessionTag.Remove(id);
} else if (nd != 1) {
Warning("Setup", "Wrong number of '-' in session tag: protocol error? %s", fSessionTag.Data());
}
// Add this process ID
fSessionTag += spid;
}
if (gProofDebugLevel > 0)
Info("Setup", "session tags: %s, %s", fTopSessionTag.Data(), fSessionTag.Data());
// Get Session dir (sandbox)
if ((fSessionDir = gEnv->GetValue("ProofServ.SessionDir", "-1")) == "-1") {
Error("Setup", "Session dir missing");
return -1;
}
// Goto to the main PROOF working directory
char *workdir = gSystem->ExpandPathName(fWorkDir.Data());
fWorkDir = workdir;
delete [] workdir;
if (gProofDebugLevel > 0)
Info("Setup", "working directory set to %s", fWorkDir.Data());
// Common setup
if (SetupCommon() != 0) {
Error("Setup", "common setup failed");
return -1;
}
// Send packages off immediately to reduce latency
fSocket->SetOption(kNoDelay, 1);
// Check every two hours if client is still alive
fSocket->SetOption(kKeepAlive, 1);
// Install SigPipe handler to handle kKeepAlive failure
gSystem->AddSignalHandler(new TXProofServSigPipeHandler(this));
// Install Termination handler
gSystem->AddSignalHandler(new TXProofServTerminationHandler(this));
// Install seg violation handler
gSystem->AddSignalHandler(new TXProofServSegViolationHandler(this));
if (gProofDebugLevel > 0)
Info("Setup", "successfully completed");
// Done
return 0;
}
////////////////////////////////////////////////////////////////////////////////
/// Get list of workers to be used from now on.
/// The list must be provided by the caller.
TProofServ::EQueryAction TXProofServ::GetWorkers(TList *workers,
Int_t & /* prioritychange */,
Bool_t resume)
{
TProofServ::EQueryAction rc = kQueryStop;
// User config files, when enabled, override cluster-wide configuration
if (gEnv->GetValue("ProofServ.UseUserCfg", 0) != 0) {
Int_t pc = 1;
return TProofServ::GetWorkers(workers, pc);
}
// seqnum of the query for which we call getworkers
Bool_t dynamicStartup = gEnv->GetValue("Proof.DynamicStartup", kFALSE);
TString seqnum = (dynamicStartup) ? "" : XPD_GW_Static;
if (!fWaitingQueries->IsEmpty()) {
if (resume) {
seqnum += ((TProofQueryResult *)(fWaitingQueries->First()))->GetSeqNum();
} else {
seqnum += ((TProofQueryResult *)(fWaitingQueries->Last()))->GetSeqNum();
}
}
// Send request to the coordinator
TObjString *os = 0;
if (dynamicStartup) {
// We wait dynto seconds for the first worker to come; -1 means forever
Int_t dynto = gEnv->GetValue("Proof.DynamicStartupTimeout", -1);
Bool_t doto = (dynto > 0) ? kTRUE : kFALSE;
while (!(os = ((TXSocket *)fSocket)->SendCoordinator(kGetWorkers, seqnum.Data()))) {
if (doto > 0 && --dynto < 0) break;
// Another second
gSystem->Sleep(1000);
}
} else {
os = ((TXSocket *)fSocket)->SendCoordinator(kGetWorkers, seqnum.Data());
}
// The reply contains some information about the master (image, workdir)
// followed by the information about the workers; the tokens for each node
// are separated by '&'
if (os) {
TString fl(os->GetName());
if (fl.BeginsWith(XPD_GW_QueryEnqueued)) {
SendAsynMessage("+++ Query cannot be processed now: enqueued");
return kQueryEnqueued;
}
// Honour a max number of workers request (typically when running in valgrind)
Int_t nwrks = -1;
Bool_t pernode = kFALSE;
if (gSystem->Getenv("PROOF_NWORKERS")) {
TString s(gSystem->Getenv("PROOF_NWORKERS"));
if (s.EndsWith("x")) {
pernode = kTRUE;
s.ReplaceAll("x", "");
}
if (s.IsDigit()) {
nwrks = s.Atoi();
if (!dynamicStartup && (nwrks > 0)) {
// Notify, except in dynamic workers mode to avoid flooding
TString msg;
if (pernode) {
msg.Form("+++ Starting max %d workers per node following the setting of PROOF_NWORKERS", nwrks);
} else {
msg.Form("+++ Starting max %d workers following the setting of PROOF_NWORKERS", nwrks);
}
SendAsynMessage(msg);
} else {
nwrks = -1;
}
} else {
pernode = kFALSE;
}
}
TString tok;
Ssiz_t from = 0;
TList *nodecnt = (pernode) ? new TList : 0 ;
if (fl.Tokenize(tok, from, "&")) {
if (!tok.IsNull()) {
TProofNodeInfo *master = new TProofNodeInfo(tok);
if (!master) {
Error("GetWorkers", "no appropriate master line got from coordinator");
return kQueryStop;
} else {
// Set image if not yet done and available
if (fImage.IsNull() && strlen(master->GetImage()) > 0)
fImage = master->GetImage();
SafeDelete(master);
}
// Now the workers
while (fl.Tokenize(tok, from, "&")) {
if (!tok.IsNull()) {
if (nwrks == -1 || nwrks > 0) {
// We have the minimal set of information to start
rc = kQueryOK;
if (pernode && nodecnt) {
TProofNodeInfo *ni = new TProofNodeInfo(tok);
TParameter<Int_t> *p = 0;
Int_t nw = 0;
if (!(p = (TParameter<Int_t> *) nodecnt->FindObject(ni->GetNodeName().Data()))) {
p = new TParameter<Int_t>(ni->GetNodeName().Data(), nw);
nodecnt->Add(p);
}
nw = p->GetVal();
if (gDebug > 0)
Info("GetWorkers","%p: name: %s (%s) val: %d (nwrks: %d)",
p, p->GetName(), ni->GetNodeName().Data(), nw, nwrks);
if (nw < nwrks) {
if (workers) workers->Add(ni);
nw++;
p->SetVal(nw);
} else {
// Two many workers on this machine already
SafeDelete(ni);
}
} else {
if (workers)
workers->Add(new TProofNodeInfo(tok));
// Count down
if (nwrks != -1) nwrks--;
}
} else {
// Release this worker (to cleanup the session list in the coordinator and get a fresh
// and correct list next call)
TProofNodeInfo *ni = new TProofNodeInfo(tok);
ReleaseWorker(ni->GetOrdinal().Data());
}
}
}
}
}
// Cleanup
if (nodecnt) {
nodecnt->SetOwner(kTRUE);
SafeDelete(nodecnt);
}
}
// We are done
return rc;
}
////////////////////////////////////////////////////////////////////////////////
/// Handle error on the input socket
Bool_t TXProofServ::HandleError(const void *)
{
// Try reconnection
if (fSocket && !fSocket->IsValid()) {
fSocket->Reconnect();
if (fSocket && fSocket->IsValid()) {
if (gDebug > 0)
Info("HandleError",
"%p: connection to local coordinator re-established", this);
FlushLogFile();
return kFALSE;
}
}
Printf("TXProofServ::HandleError: %p: got called ...", this);
// If master server, propagate interrupt to slaves
// (shutdown interrupt send internally).
if (IsMaster())
fProof->Close("S");
// Avoid communicating back anything to the coordinator (it is gone)
if (fSocket) ((TXSocket *)fSocket)->SetSessionID(-1);
Terminate(0);
Printf("TXProofServ::HandleError: %p: DONE ... ", this);
// We are done
return kTRUE;
}
////////////////////////////////////////////////////////////////////////////////
/// Handle asynchronous input on the input socket
Bool_t TXProofServ::HandleInput(const void *in)
{
if (gDebug > 2)
Printf("TXProofServ::HandleInput %p, in: %p", this, in);
XHandleIn_t *hin = (XHandleIn_t *) in;
Int_t acod = (hin) ? hin->fInt1 : kXPD_msg;
// Act accordingly
if (acod == kXPD_ping || acod == kXPD_interrupt) {
// Interrupt or Ping
HandleUrgentData();
} else if (acod == kXPD_flush) {
// Flush stdout, so that we can access the full log file
Info("HandleInput","kXPD_flush: flushing log file (stdout)");
fflush(stdout);
} else if (acod == kXPD_urgent) {
// Get type
Int_t type = hin->fInt2;
switch (type) {
case TXSocket::kStopProcess:
{
// Abort or Stop ?
Bool_t abort = (hin->fInt3 != 0) ? kTRUE : kFALSE;
// Timeout
Int_t timeout = hin->fInt4;
// Act now
if (fProof)
fProof->StopProcess(abort, timeout);
else