void inspect_sync_histo(TString hFile="data/HistosMonitorTofSync.root", Double_t MaxMismatch=1.){
  using namespace std; 

 TFile *fHistFile = TFile::Open(hFile,"READ");
 TString hname;
 TH1* h1;
 TH1* h23;
 TH1* h24;
 TH2* h2;
 const Int_t NGdpb=12;
 const Int_t NGbTx=6;
 Int_t iInit=0;
 Int_t NMissingGbtx=0;
 Bool_t bSectorFW[NGdpb]={NGdpb*kFALSE};
 // reinitialize Gbtx 
 if(1)
 for (Int_t iGdpb=0; iGdpb<NGdpb; iGdpb++){
   hname=Form("hGdpbGet4MessType_%02d",iGdpb);
   h2=(TH2 *)fHistFile->FindObjectAny(hname);
   if(NULL == h2) {
     cout << " Histo " << hname << " not found " << endl;  
     continue;
   }
   h1 = h2->ProjectionX("_px",3,3);  // get scm line
   Int_t NGet4=0;
   for (Int_t iGbtx=0; iGbtx<NGbTx; iGbtx++) {
     Int_t iStart=iGbtx*40;
     Int_t NGet4_begin=NGet4;
     for (Int_t iGet4=iStart; iGet4<iStart+32; iGet4++) {
       if(h1->GetBinContent(iGet4) > 0) NGet4++;
     }
     if( NGet4 == NGet4_begin ) NMissingGbtx++;
   }

   TDatime *pTime=new TDatime();
   cout << Form("%d,%d",pTime->GetDate(),pTime->GetTime()) << ": AFCK " << iGdpb << " has " << NGet4 <<" active GET4s" << endl;  
   if (NGet4 < 130) {  // max: 6*24 = 144 
     Int_t iSec=iGdpb+13;
     gSystem->Exec(Form("/home/cbm/bin/prog_etof_sector.sh %d > /home/cbm/starsoft/dpbcontrols/LOG/PROG%d ",iSec,iSec));
     bSectorFW[iGdpb]=kTRUE;
   } else {
     ;
   }
 }
 
 hname=Form("hGdpbEpochFlags");
 h2=(TH2 *)fHistFile->FindObjectAny(hname);
 if(NULL == h2) {
   cout << " Histo " << hname << " not found " << endl;
   return;
 }
 
 h24 = h2->ProjectionX("_px",4,4);  // get mismatch line
 cout << "<I> stop fles " << endl; 
 gSystem->Exec(Form("cd /home/cbm/starsoft/startup_scripts; ./DisableDataOut.sh > /dev/null; ./stop_fles.sh > /dev/null "));

 Int_t NBad=0;
 for (Int_t iGdpb=0; iGdpb<NGdpb; iGdpb++){
   Int_t iSec=iGdpb+13;
   if( h24->GetBinContent(iGdpb+1) > MaxMismatch || bSectorFW[iGdpb] ) {
     TDatime *pTime=new TDatime();
     cout << Form("%d,%d",pTime->GetDate(),pTime->GetTime()) << Form(": Init Gdpb %d, sector %d with %d mismatches",
								     iGdpb,iSec,(Int_t)h24->GetBinContent(iGdpb+1)) << endl;
     
     gSystem->Exec(Form("cd /home/cbm/starsoft/dpbcontrols; nohup ./start_etof_sector.sh %d  > ./LOG/EtofSector%d & ",iSec,iSec));
     
     NBad++;
   } else {
     gSystem->Exec(Form("cd /home/cbm/starsoft/dpbcontrols; rm ./LOG/BAD%d &> /dev/null",iSec));
   }
 }
 if(NBad == 0) {
   gSystem->Exec("rm /tmp/NoSync");  // done
 }else{
   cout <<" Found "<< NBad << " bad sectors " << endl;
 }
 
 gSystem->Exec( Form("echo %d > /tmp/MissingGbtx",NMissingGbtx) );  // communicate status to shell script
 
 gSystem->Exec(Form("/home/cbm/starsoft/dpbcontrols/afck_wait_configured.sh "));  // wait for completion

}