> Hi Jochen,
>
> you should try to open such files with TRFIOFile instead of TFile!
>
> Regards,
> Horst
Thanks. I tried it with:
root [0] gSystem->Load("libRFIO");
root [1] TRFIOFile f1 =
TRFIOFile("rfio:/castor/cern.ch/user/s/schieck/mc2790_1_111.root");
Error in <TRFIOFile::TRFIOFile>: file
/castor/cern.ch/user/s/schieck/mc2790_1_111.root does not exist
and still I cannot see the files in CASTOR directly. If I try to access
the root file via the link with
root [2] TRFIOFile f1 = TRFIOFile("rfio:link.root");
and start the viewer
root [3] TTree *ntuple1 = f1.Get("h10");
root [4] ntuple1->StartViewer();
I get again a crash. It still doesn't work.
Jochen
>
> Jochen Schieck wrote:
> >
> > Hello,
> >
> > we are trying to acces root files in CASTOR with
> >
> > TFile *f1 =
> > TFile::Open("rfio:/castor/cern.ch/user/s/schieck/mc2790_1_111.root");
> >
> > and the system complains with:
> >
> > Error in <TRFIOFile::TRFIOFile>: file
> > /castor/cern.ch/user/s/schieck/mc2790_1_111.root does not exist
> >
> > But the file exists as you can see:
> >
> > [lxplus044] ~ > rfstat /castor/cern.ch/user/s/schieck/mc2790_1_111.root
> > Device : 0
> > Inode number : 4236991
> > Protection : -rw-r--r-- (100644)
> > Hard Links : 1
> > Uid : 19235 (schieck)
> > Gid : 1135 (ws)
> > Size (bytes) : 126547074
> > Last access : Thu Nov 29 12:15:50 2001
> > Last modify : Thu Nov 29 12:00:40 2001
> > Last stat. mod. : Thu Nov 29 12:00:40 2001
> >
> > We tried a similar thing in PAW with opening a hbook file in CASTOR and it
> > actually worked!
> >
> > We managed to access the file with manual stagein -M and using a symbolic
> > link. However, if we try to access a tree within the root file via
> >
> > TFile *f = TFile::Open("rfio:link.root");
> > TTree *ntuple = f.Get("h10");
> > ntuple->StartViewer();
> >
> > and try to plot a variable in a TBranch ROOT crashes.
> >
> > We use root ver 3.01 from afs
> >
> > ROOTSYS=/afs/cern.ch/na49/library.4/ROOT/new/i386_redhat60/root
> > LD_LIBRARY_PATH=/afs/cern.ch/na49/library.4/ROOT/new/i386_redhat60/root/lib/
> >
> > on lxplus.
> >
> > Thanks for any help
> >
> > Jochen
> >
> > ----------------------------------------------------------------------
> > Jochen Schieck
> > EMAIL: schieck@mppmu.mpg.de
> > Max-Planck-Institut fuer Physik (Werner-Heisenberg-Institut)
> > Tel: +49 89 323 54 352
> > +49 179 54 72 113
> > Fax: +49 89 322 67 04
> > Foehringer Ring 6 / Room 245
> > 80805 Muenchen
> > ----------------------------------------------------------------------
>
> --
> -----------------------------------------------------------------
> Dr. Horst Goeringer email: H.Goeringer@gsi.de
> GSI Computing Center Tel: +49-6159-71-2553
> Planckstr. 1 Fax: +49-6159-71-2986
> D-64291 Darmstadt, Germany
> -----------------------------------------------------------------
>
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