MONITOR/alistoragemanager/AliStorageClientThread.cxx

   1 #include "AliStorageClientThread.h"
   2 #include "AliMultiplicity.h"
   3 #include "AliStorageTypes.h"
   4 #include "AliStorageEventManager.h"
   5
   6 #include <sstream>
   7 #include <signal.h>
   8 #include <fstream>
   9 #include <iostream>
  10
  11 #include <TSystemDirectory.h>
  12 #include <TThread.h>
  13 #include <TFile.h>
  14
  15 using namespace std;
  16
  17 bool gClientQuit = false;    // signal flag
  18 void GotSignalClient(int){gClientQuit = true;}
  19
  20 AliStorageClientThread::AliStorageClientThread() :
  21 fConnectionStatus(STATUS_WAITING),
  22 fReceivingStatus(STATUS_WAITING),
  23 fSavingStatus(STATUS_WAITING),
  24 fCommunicationThread(0),
  25 fCurrentFile(0),
  26 fDatabase(0),
  27 fCurrentStorageSize(0),
  28 fMaximumStorageSize(0),
  29 fStoragePath(""),
  30 fNumberOfEventsInFile(0),
  31 fStorageOccupationLevel(0),
  32 fRemoveEventsPercentage(0)
  33 {
  34         // make sure that when program is closed destructor will be called
  35         struct sigaction sa;
  36         memset(&sa,0,sizeof(sa));
  37         sa.sa_handler = GotSignalClient;
  38         sigfillset(&sa.sa_mask);
  39         sigaction(SIGINT,&sa,NULL);
  40
  41         //load storage parameters from file
  42         TThread::Lock();
  43         ifstream configFile (GetConfigFilePath());
  44         if (configFile.is_open())
  45         {
  46                 string line;
  47                 int from,to;
  48                 while(configFile.good())
  49                 {
  50                         getline(configFile,line);
  51                         from = line.find("\"")+1;
  52                         to = line.find_last_of("\"");
  53                         if(line.find("STORAGE_PATH=")==0)
  54                         {
  55                                 fStoragePath=line.substr(from,to-from);
  56                         }
  57                         else if(line.find("MAX_SIZE=")==0)
  58                         {
  59                                 fMaximumStorageSize=atoi(line.substr(from,to-from).c_str());
  60                         }
  61                         else if(line.find("MAX_OCCUPATION=")==0)
  62                         {
  63                                 fStorageOccupationLevel=atoi(line.substr(from,to-from).c_str());
  64                         }
  65                         else if(line.find("REMOVE_PERCENT=")==0)
  66                         {
  67                                 fRemoveEventsPercentage=atoi(line.substr(from,to-from).c_str());
  68                         }
  69                         else if(line.find("EVENTS_IN_FILE=")==0)
  70                         {
  71                                 fNumberOfEventsInFile=atoi(line.substr(from,to-from).c_str());
  72                         }
  73                 }
  74                 if(configFile.eof())
  75                 {
  76                         configFile.clear();
  77                 }
  78                 configFile.close();
  79         }
  80         else
  81         {
  82                 cout<<"CLIENT -- Unable to open config file"<<endl;
  83         }
  84         //create directory for storage if it doesn't exist
  85         gSystem->Exec(Form("mkdir -p %s",fStoragePath.c_str()));
  86
  87         //create database class
  88         fDatabase = new AliStorageDatabase();
  89         TThread::UnLock();
  90
  91         //check current storage size
  92         fCurrentStorageSize = GetSizeOfAllChunks();
  93
  94         //create two-way commynication thread
  95         fCommunicationThread = new TThread("fCommunicationThread",
  96                                        Dispatch,(void*)this);
  97         fCommunicationThread->Run();
  98 }
  99
 100 AliStorageClientThread::~AliStorageClientThread()
 101 {
 102         cout<<"CLIENT -- AliStorageClientThread destructor called";
 103         if(fCurrentFile)
 104         {
 105                 fCurrentFile->Close();
 106                 delete fCurrentFile;
 107         }
 108         if(fCommunicationThread){delete fCommunicationThread;}
 109         cout<<" --- OK"<<endl;
 110 }
 111
 112 void AliStorageClientThread::CommunicationHandle()
 113 {
 114         AliStorageEventManager *eventManager = AliStorageEventManager::GetEventManagerInstance();
 115         storageSockets socket = CLIENT_COMMUNICATION_REP;
 116         eventManager->CreateSocket(socket);
 117
 118         struct clientRequestStruct *request;
 119         struct clientRequestStruct *response = new struct clientRequestStruct;
 120
 121         cout<<"CLIENT -- Communication stated"<<endl;
 122
 123         while(!gClientQuit)
 124         {
 125                 request = eventManager->GetClientStruct(socket);
 126                 switch(request->messageType)
 127                 {
 128                 case REQUEST_CONNECTION:
 129                         eventManager->Send((long)fConnectionStatus,socket);
 130                         break;
 131                 case REQUEST_RECEIVING:
 132                         eventManager->Send((long)fReceivingStatus,socket);
 133                         break;
 134                 case REQUEST_SAVING:
 135                         eventManager->Send((long)fSavingStatus,socket);
 136                         break;
 137                 case REQUEST_CURRENT_SIZE:
 138                         eventManager->Send((long)fCurrentStorageSize,socket);
 139                         break;
 140                 case REQUEST_GET_PARAMS:
 141                         response->maxStorageSize = fMaximumStorageSize;
 142                         response->maxOccupation = fStorageOccupationLevel;
 143                         response->removeEvents = fRemoveEventsPercentage;
 144                         response->eventsInChunk = fNumberOfEventsInFile;
 145
 146                         eventManager->Send(response,socket);
 147                         break;
 148                 case REQUEST_SET_PARAMS:
 149                         SetStorageParams(request->maxStorageSize,
 150                                          request->maxOccupation,
 151                                          request->removeEvents,
 152                                          request->eventsInChunk);
 153
 154                         fMaximumStorageSize = request->maxStorageSize;
 155                         fStorageOccupationLevel = request->maxOccupation;
 156                         fRemoveEventsPercentage = request->removeEvents;
 157                         fNumberOfEventsInFile = request->eventsInChunk;
 158
 159                         eventManager->Send(true,socket);
 160                         break;
 161                 default:break;
 162                 }
 163                 delete request;
 164         }
 165 }
 166
 167 void AliStorageClientThread::SetStorageParams(int maxStorageSize,int maxOccupation,int removeEvents,int eventsInChunk)
 168 {
 169         cout<<maxStorageSize<<endl<<maxOccupation<<endl<<removeEvents<<endl<<eventsInChunk<<endl;
 170
 171
 172         TThread::Lock();
 173         ifstream configFile (GetConfigFilePath());
 174         ofstream tmpFile("tmpFile.bla");
 175
 176         if (configFile.is_open())
 177         {
 178                 string line;
 179                 string tmpLine;
 180                 int from,to;
 181                 while(configFile.good())
 182                 {
 183                         getline(configFile,line);
 184                         from = line.find("\"")+1;
 185                         to = line.find_last_of("\"");
 186                         tmpLine = line;
 187                         if(line.find("MAX_SIZE=")==0)
 188                         {
 189                                 tmpLine = Form("MAX_SIZE=\"%d\"",maxStorageSize);
 190                         }
 191                         else if(line.find("MAX_OCCUPATION=")==0)
 192                         {
 193                                 tmpLine = Form("MAX_OCCUPATION=\"%d\"",maxOccupation);
 194                         }
 195                         else if(line.find("REMOVE_PERCENT=")==0)
 196                         {
 197                                 tmpLine = Form("REMOVE_PERCENT=\"%d\"",removeEvents);
 198                         }
 199                         else if(line.find("EVENTS_IN_FILE=")==0)
 200                         {
 201                                 tmpLine = Form("EVENTS_IN_FILE=\"%d\"",eventsInChunk);
 202                         }
 203                         tmpLine += "\n";
 204                         tmpFile << tmpLine;
 205                 }
 206                 if(configFile.eof())
 207                 {
 208                         configFile.clear();
 209                 }
 210                 configFile.close();
 211                 tmpFile.close();
 212                 rename("tmpFile.bla",GetConfigFilePath());
 213         }
 214         else
 215         {
 216                 cout<<"CLIENT -- Unable to open config file"<<endl;
 217         }
 218         TThread::UnLock();
 219 }
 220
 221 Long64_t AliStorageClientThread::GetSizeOfAllChunks()
 222 {
 223         Long64_t totalStorageSize = 0;
 224
 225         TSystemDirectory dir(fStoragePath.c_str(),fStoragePath.c_str());
 226         TList *listOfDirectories = dir.GetListOfFiles();
 227
 228         if (!listOfDirectories)
 229         {
 230                 cout<<"CLIENT -- Storage directory is empty"<<endl;
 231                 return 0;
 232         }
 233         TIter nextDirectory(listOfDirectories);
 234         TSystemFile *runDirectory;
 235         string directoryName;
 236
 237         while ((runDirectory=(TSystemFile*)nextDirectory()))
 238         {
 239                 directoryName=runDirectory->GetName();
 240                 if (runDirectory->IsDirectory() && directoryName.find("run")==0)
 241                 {
 242                         TSystemDirectory dirChunks(Form("%s/%s",fStoragePath.c_str(),directoryName.c_str()),Form("%s/%s",fStoragePath.c_str(),directoryName.c_str()));
 243                         TList *listOfChunks = dirChunks.GetListOfFiles();
 244
 245                         if(listOfChunks)
 246                         {
 247                                 TIter nextChunk(listOfChunks);
 248                                 TSystemFile *chunk;
 249                                 string chunkFileName;
 250
 251                                 while((chunk=(TSystemFile*)nextChunk()))
 252                                 {
 253                                         chunkFileName = chunk->GetName();
 254                                         if(!chunk->IsDirectory() && chunkFileName.find("chunk")==0)
 255                                         {
 256                                                 TFile *tmpFile = new TFile(Form("%s/%s/%s",fStoragePath.c_str(),directoryName.c_str(),chunkFileName.c_str()),"read");
 257                                                 if(tmpFile)
 258                                                 {
 259                                                         totalStorageSize+=tmpFile->GetSize();
 260                                                         tmpFile->Close();
 261                                                         delete tmpFile;
 262                                                 }
 263                                         }
 264                                 }
 265                                 if(chunk){delete chunk;}
 266                         }
 267                         if(listOfChunks){delete listOfChunks;}
 268                 }
 269         }
 270
 271         //tmpFiles.clear();
 272         if(listOfDirectories){delete listOfDirectories;}
 273         if(runDirectory){delete runDirectory;}
 274
 275         printf("CLIENT -- Total storage size:%lld\t(%.2f MB)\n",totalStorageSize,(float)totalStorageSize/(1000.*1000.));
 276
 277         return totalStorageSize;
 278 }
 279
 280 void AliStorageClientThread::CollectData()
 281 {
 282         AliStorageEventManager *eventManager = AliStorageEventManager::GetEventManagerInstance();
 283         if(eventManager->CreateSocket(EVENTS_SERVER_SUB))
 284         {
 285                 fConnectionStatus=STATUS_OK;
 286         }
 287         else
 288         {
 289                 fConnectionStatus=STATUS_ERROR;
 290         }
 291
 292         int chunkNumber=0;
 293         int previousChunkNumber=-1;
 294         int eventsInChunk=0;
 295         int previousRunNumber=-1;
 296         AliESDEvent *event = NULL;
 297 //        TTree *tree = NULL;
 298
 299         while(!gClientQuit)
 300         {
 301           event = eventManager->GetEvent(EVENTS_SERVER_SUB);
 302
 303                 if(event)
 304                 {
 305                         fReceivingStatus=STATUS_OK;
 306
 307                         if(event->GetRunNumber() != previousRunNumber)//when new run starts
 308                         {
 309                                 cout<<"CLIENT -- new run started"<<endl;
 310                                 previousRunNumber = event->GetRunNumber();
 311                                 gSystem->Exec(Form("mkdir -p %s/run%d",fStoragePath.c_str(),event->GetRunNumber()));
 312                                 chunkNumber=0;
 313                                 eventsInChunk=0;
 314
 315                                 TSystemDirectory dir(Form("%s/run%d",fStoragePath.c_str(),event->GetRunNumber()),
 316                                                      Form("%s/run%d",fStoragePath.c_str(),event->GetRunNumber()));
 317                                 TList *files = dir.GetListOfFiles();
 318                                 if (files)
 319                                 {
 320                                         TSystemFile *file;
 321                                         string fname;
 322                                         TIter next(files);
 323
 324                                         while ((file=(TSystemFile*)next()))
 325                                         {
 326                                                 fname = file->GetName();
 327
 328                                                 if (!file->IsDirectory())
 329                                                 {
 330                                                         int from = fname.find("chunk")+5;
 331                                                         int to = fname.find(".root");
 332
 333                                                         int maxChunkNumber = atoi(fname.substr(from,to-from).c_str());
 334
 335                                                         if(maxChunkNumber > chunkNumber)
 336                                                         {
 337                                                                 chunkNumber = maxChunkNumber;
 338                                                         }
 339                                                 }
 340                                         }
 341                                         chunkNumber++;
 342                                 }
 343                         }
 344
 345                         cout<<"CLIENT -- Received data. Event:"<<event->GetEventNumberInFile()<<"\trun:"<<event->GetRunNumber()<<endl;
 346
 347                         if(chunkNumber != previousChunkNumber)//when new chunk needs to be created
 348                         {
 349                                 if(fCurrentFile)
 350                                 {
 351                                         fCurrentFile->Close();
 352                                         delete fCurrentFile;
 353                                         fCurrentFile=0;
 354                                 }
 355                                 fCurrentStorageSize=GetSizeOfAllChunks();
 356                                 CheckCurrentStorageSize();
 357
 358                                 fCurrentFile = new TFile(Form("%s/run%d/chunk%d.root", fStoragePath.c_str(),event->GetRunNumber(),chunkNumber),"recreate");
 359
 360                                 previousChunkNumber = chunkNumber;
 361                         }
 362
 363                         if(0 != fCurrentFile->WriteObject(event,Form("event%d",event->GetEventNumberInFile())))//if event was written to file
 364                         {
 365                                 fDatabase->InsertEvent(event->GetRunNumber(),
 366                                               event->GetEventNumberInFile(),
 367                                               (char*)event->GetBeamType(),
 368                                                        event->GetMultiplicity()->GetNumberOfTracklets(),Form("%s/run%d/chunk%d.root",fStoragePath.c_str(),event->GetRunNumber(),chunkNumber));
 369
 370                                 eventsInChunk++;
 371
 372                                 if(eventsInChunk == fNumberOfEventsInFile)//if max events number in file was reached
 373                                 {
 374                                         chunkNumber++;
 375                                         eventsInChunk=0;
 376                                 }
 377
 378                                 if(fSavingStatus!=STATUS_OK)
 379                                 {
 380                                         fSavingStatus=STATUS_OK;
 381                                 }
 382                         }
 383                         else if(fSavingStatus!=STATUS_ERROR)
 384                         {
 385                                 fSavingStatus=STATUS_ERROR;
 386                         }
 387                         delete event;event=0;
 388                         //delete tree;
 389                 }
 390                 else if(fReceivingStatus!=STATUS_ERROR)
 391                 {
 392                         cout<<"CLIENT -- ERROR -- NO DATA!"<<endl;
 393                         fReceivingStatus=STATUS_ERROR;
 394                 }
 395         }
 396         if(event){delete event;}
 397 }
 398
 399
 400 void AliStorageClientThread::CheckCurrentStorageSize()
 401 {
 402         if(fCurrentStorageSize >  (float)fStorageOccupationLevel/100. * fMaximumStorageSize)
 403         {
 404                 while(GetSizeOfAllChunks() > (float)fRemoveEventsPercentage/100. * fMaximumStorageSize)
 405                 {
 406                         struct eventStruct oldestEvent = fDatabase->GetOldestEvent();
 407                         string oldestEventPath = fDatabase->GetFilePath(oldestEvent);
 408                         //remove oldest event
 409                         cout<<"CLIENT -- Removing old events:"<<oldestEventPath<<endl;
 410                         gSystem->Exec(Form("rm -f %s",oldestEventPath.c_str()));
 411                         fDatabase->RemoveEvent(fDatabase->GetOldestEvent());
 412                 }
 413         }
 414 }