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         if(fDatabase){delete fDatabase;}
 110         cout<<" --- OK"<<endl;
 111 }
 112
 113 void AliStorageClientThread::CommunicationHandle()
 114 {
 115         AliStorageEventManager *eventManager = AliStorageEventManager::GetEventManagerInstance();
 116         storageSockets socket = CLIENT_COMMUNICATION_REP;
 117         eventManager->CreateSocket(socket);
 118
 119         struct clientRequestStruct *request;
 120         struct clientRequestStruct *response = new struct clientRequestStruct;
 121
 122         cout<<"CLIENT -- Communication stated"<<endl;
 123
 124         while(!gClientQuit)
 125         {
 126                 request = eventManager->GetClientStruct(socket);
 127                 switch(request->messageType)
 128                 {
 129                 case REQUEST_CONNECTION:
 130                         eventManager->Send((long)fConnectionStatus,socket);
 131                         break;
 132                 case REQUEST_RECEIVING:
 133                         eventManager->Send((long)fReceivingStatus,socket);
 134                         break;
 135                 case REQUEST_SAVING:
 136                         eventManager->Send((long)fSavingStatus,socket);
 137                         break;
 138                 case REQUEST_CURRENT_SIZE:
 139                         eventManager->Send((long)fCurrentStorageSize,socket);
 140                         break;
 141                 case REQUEST_GET_PARAMS:
 142                         response->maxStorageSize = fMaximumStorageSize;
 143                         response->maxOccupation = fStorageOccupationLevel;
 144                         response->removeEvents = fRemoveEventsPercentage;
 145                         response->eventsInChunk = fNumberOfEventsInFile;
 146
 147                         eventManager->Send(response,socket);
 148                         break;
 149                 case REQUEST_SET_PARAMS:
 150                         SetStorageParams(request->maxStorageSize,
 151                                          request->maxOccupation,
 152                                          request->removeEvents,
 153                                          request->eventsInChunk);
 154
 155                         fMaximumStorageSize = request->maxStorageSize;
 156                         fStorageOccupationLevel = request->maxOccupation;
 157                         fRemoveEventsPercentage = request->removeEvents;
 158                         fNumberOfEventsInFile = request->eventsInChunk;
 159
 160                         eventManager->Send(true,socket);
 161                         break;
 162                 default:break;
 163                 }
 164                 delete request;
 165         }
 166 }
 167
 168 void AliStorageClientThread::SetStorageParams(int maxStorageSize,int maxOccupation,int removeEvents,int eventsInChunk)
 169 {
 170         cout<<maxStorageSize<<endl<<maxOccupation<<endl<<removeEvents<<endl<<eventsInChunk<<endl;
 171
 172
 173         TThread::Lock();
 174         ifstream configFile (GetConfigFilePath());
 175         ofstream tmpFile("tmpFile.bla");
 176
 177         if (configFile.is_open())
 178         {
 179                 string line;
 180                 string tmpLine;
 181                 int from,to;
 182                 while(configFile.good())
 183                 {
 184                         getline(configFile,line);
 185                         from = line.find("\"")+1;
 186                         to = line.find_last_of("\"");
 187                         tmpLine = line;
 188                         if(line.find("MAX_SIZE=")==0)
 189                         {
 190                                 tmpLine = Form("MAX_SIZE=\"%d\"",maxStorageSize);
 191                         }
 192                         else if(line.find("MAX_OCCUPATION=")==0)
 193                         {
 194                                 tmpLine = Form("MAX_OCCUPATION=\"%d\"",maxOccupation);
 195                         }
 196                         else if(line.find("REMOVE_PERCENT=")==0)
 197                         {
 198                                 tmpLine = Form("REMOVE_PERCENT=\"%d\"",removeEvents);
 199                         }
 200                         else if(line.find("EVENTS_IN_FILE=")==0)
 201                         {
 202                                 tmpLine = Form("EVENTS_IN_FILE=\"%d\"",eventsInChunk);
 203                         }
 204                         tmpLine += "\n";
 205                         tmpFile << tmpLine;
 206                 }
 207                 if(configFile.eof())
 208                 {
 209                         configFile.clear();
 210                 }
 211                 configFile.close();
 212                 tmpFile.close();
 213                 rename("tmpFile.bla",GetConfigFilePath());
 214         }
 215         else
 216         {
 217                 cout<<"CLIENT -- Unable to open config file"<<endl;
 218         }
 219         TThread::UnLock();
 220 }
 221
 222 Long64_t AliStorageClientThread::GetSizeOfAllChunks()
 223 {
 224         Long64_t totalStorageSize = 0;
 225
 226         TSystemDirectory dir(fStoragePath.c_str(),fStoragePath.c_str());
 227         TList *listOfDirectories = dir.GetListOfFiles();
 228
 229         if (!listOfDirectories)
 230         {
 231                 cout<<"CLIENT -- Storage directory is empty"<<endl;
 232                 return 0;
 233         }
 234         TIter nextDirectory(listOfDirectories);
 235         TSystemFile *runDirectory;
 236         string directoryName;
 237
 238         while ((runDirectory=(TSystemFile*)nextDirectory()))
 239         {
 240                 directoryName=runDirectory->GetName();
 241                 if (runDirectory->IsDirectory() && directoryName.find("run")==0)
 242                 {
 243                         TSystemDirectory dirChunks(Form("%s/%s",fStoragePath.c_str(),directoryName.c_str()),Form("%s/%s",fStoragePath.c_str(),directoryName.c_str()));
 244                         TList *listOfChunks = dirChunks.GetListOfFiles();
 245
 246                         if(listOfChunks)
 247                         {
 248                                 TIter nextChunk(listOfChunks);
 249                                 TSystemFile *chunk;
 250                                 string chunkFileName;
 251
 252                                 while((chunk=(TSystemFile*)nextChunk()))
 253                                 {
 254                                         chunkFileName = chunk->GetName();
 255                                         if(!chunk->IsDirectory() && chunkFileName.find("chunk")==0)
 256                                         {
 257                                                 TFile *tmpFile = new TFile(Form("%s/%s/%s",fStoragePath.c_str(),directoryName.c_str(),chunkFileName.c_str()),"read");
 258                                                 if(tmpFile)
 259                                                 {
 260                                                         totalStorageSize+=tmpFile->GetSize();
 261                                                         tmpFile->Close();
 262                                                         delete tmpFile;
 263                                                 }
 264                                         }
 265                                 }
 266                                 if(chunk){delete chunk;}
 267                         }
 268                         if(listOfChunks){delete listOfChunks;}
 269                 }
 270         }
 271
 272         //tmpFiles.clear();
 273         if(listOfDirectories){delete listOfDirectories;}
 274         if(runDirectory){delete runDirectory;}
 275
 276         printf("CLIENT -- Total storage size:%lld\t(%.2f MB)\n",totalStorageSize,(float)totalStorageSize/(1000.*1000.));
 277
 278         return totalStorageSize;
 279 }
 280
 281 void AliStorageClientThread::CollectData()
 282 {
 283         AliStorageEventManager *eventManager = AliStorageEventManager::GetEventManagerInstance();
 284         if(eventManager->CreateSocket(EVENTS_SERVER_SUB))
 285         {
 286                 fConnectionStatus=STATUS_OK;
 287         }
 288         else
 289         {
 290                 fConnectionStatus=STATUS_ERROR;
 291         }
 292
 293         int chunkNumber=0;
 294         int previousChunkNumber=-1;
 295         int eventsInChunk=0;
 296         int previousRunNumber=-1;
 297         AliESDEvent *event = NULL;
 298 //        TTree *tree = NULL;
 299
 300         while(!gClientQuit)
 301         {
 302           event = eventManager->GetEvent(EVENTS_SERVER_SUB);
 303
 304                 if(event)
 305                 {
 306                         fReceivingStatus=STATUS_OK;
 307
 308                         if(event->GetRunNumber() != previousRunNumber)//when new run starts
 309                         {
 310                                 cout<<"CLIENT -- new run started"<<endl;
 311                                 previousRunNumber = event->GetRunNumber();
 312                                 gSystem->Exec(Form("mkdir -p %s/run%d",fStoragePath.c_str(),event->GetRunNumber()));
 313                                 chunkNumber=0;
 314                                 eventsInChunk=0;
 315
 316                                 TSystemDirectory dir(Form("%s/run%d",fStoragePath.c_str(),event->GetRunNumber()),
 317                                                      Form("%s/run%d",fStoragePath.c_str(),event->GetRunNumber()));
 318                                 TList *files = dir.GetListOfFiles();
 319                                 if (files)
 320                                 {
 321                                         TSystemFile *file;
 322                                         string fname;
 323                                         TIter next(files);
 324
 325                                         while ((file=(TSystemFile*)next()))
 326                                         {
 327                                                 fname = file->GetName();
 328
 329                                                 if (!file->IsDirectory())
 330                                                 {
 331                                                         int from = fname.find("chunk")+5;
 332                                                         int to = fname.find(".root");
 333
 334                                                         int maxChunkNumber = atoi(fname.substr(from,to-from).c_str());
 335
 336                                                         if(maxChunkNumber > chunkNumber)
 337                                                         {
 338                                                                 chunkNumber = maxChunkNumber;
 339                                                         }
 340                                                 }
 341                                         }
 342                                         chunkNumber++;
 343                                 }
 344                         }
 345
 346                         cout<<"CLIENT -- Received data. Event:"<<event->GetEventNumberInFile()<<"\trun:"<<event->GetRunNumber()<<endl;
 347
 348                         if(chunkNumber != previousChunkNumber)//when new chunk needs to be created
 349                         {
 350                                 if(fCurrentFile)
 351                                 {
 352                                         fCurrentFile->Close();
 353                                         delete fCurrentFile;
 354                                         fCurrentFile=0;
 355                                 }
 356                                 fCurrentStorageSize=GetSizeOfAllChunks();
 357                                 CheckCurrentStorageSize();
 358
 359                                 fCurrentFile = new TFile(Form("%s/run%d/chunk%d.root", fStoragePath.c_str(),event->GetRunNumber(),chunkNumber),"recreate");
 360
 361                                 previousChunkNumber = chunkNumber;
 362                         }
 363
 364                         if(0 != fCurrentFile->WriteObject(event,Form("event%d",event->GetEventNumberInFile())))//if event was written to file
 365                         {
 366                                 fDatabase->InsertEvent(event->GetRunNumber(),
 367                                               event->GetEventNumberInFile(),
 368                                               (char*)event->GetBeamType(),
 369                                                        event->GetMultiplicity()->GetNumberOfTracklets(),Form("%s/run%d/chunk%d.root",fStoragePath.c_str(),event->GetRunNumber(),chunkNumber));
 370
 371                                 eventsInChunk++;
 372
 373                                 if(eventsInChunk == fNumberOfEventsInFile)//if max events number in file was reached
 374                                 {
 375                                         chunkNumber++;
 376                                         eventsInChunk=0;
 377                                 }
 378
 379                                 if(fSavingStatus!=STATUS_OK)
 380                                 {
 381                                         fSavingStatus=STATUS_OK;
 382                                 }
 383                         }
 384                         else if(fSavingStatus!=STATUS_ERROR)
 385                         {
 386                                 fSavingStatus=STATUS_ERROR;
 387                         }
 388                         delete event;event=0;
 389                         //delete tree;
 390                 }
 391                 else if(fReceivingStatus!=STATUS_ERROR)
 392                 {
 393                         cout<<"CLIENT -- ERROR -- NO DATA!"<<endl;
 394                         fReceivingStatus=STATUS_ERROR;
 395                 }
 396         }
 397         if(event){delete event;}
 398 }
 399
 400
 401 void AliStorageClientThread::CheckCurrentStorageSize()
 402 {
 403         if(fCurrentStorageSize >  (float)fStorageOccupationLevel/100. * fMaximumStorageSize)
 404         {
 405                 while(GetSizeOfAllChunks() > (float)fRemoveEventsPercentage/100. * fMaximumStorageSize)
 406                 {
 407                         struct eventStruct oldestEvent = fDatabase->GetOldestEvent();
 408                         string oldestEventPath = fDatabase->GetFilePath(oldestEvent);
 409                         //remove oldest event
 410                         cout<<"CLIENT -- Removing old events:"<<oldestEventPath<<endl;
 411                         gSystem->Exec(Form("rm -f %s",oldestEventPath.c_str()));
 412             fDatabase->RemoveEventsWithPath(oldestEventPath);
 413 //                      fDatabase->RemoveEvent(oldestEvent);
 414                 }
 415         }
 416 }