[ROOT] Re: Problem in reading Castor files from root

From: Andreas Morsch (Andreas.Morsch@cern.ch)
Date: Tue Dec 09 2003 - 09:23:00 MET


Hi Ruben, 
make sure that the uid and gid on your local PC are the same as on your 
afs account.
Best regards - Andreas.

On Mon, 8 Dec 2003, Ruben Shahoyan wrote:

> Hello,
> we have the followoing problem: when we try to open the root file (on 
> Castor) via rfio. When we try to do this from local cern PC (having done 
> klog) it fails, while from lxplus it works. Does anybody have experience
> with such operations? What can be the problem?
> Below are the screenshots of failed (on local pc) and successful (lxplus) 
> trials.
> 
> Bets regards,
> 	Ruben Shahoyan
>  
> offline@na60farm1:~ klog -principal na60cdr
> Password:
> offline@na60farm1:~ klist
> Ticket file:    /tmp/tkt21591
> Principal:      na60cdr@CERN.CH
> 
>   Issued           Expires          Principal
> Dec  8 18:07:45  Dec  9 19:34:06  krbtgt.CERN.CH@CERN.CH
> Dec  8 18:07:45  Dec  9 19:34:06  afs@CERN.CH
> offline@na60farm1:~ nstouch /castor/cern.ch/na60/test/a.root
> /castor/cern.ch/na60/test/a.root: Permission denied
> offline@na60farm1:~ root -b
>   *******************************************
>   *                                         *
>   *        W E L C O M E  to  R O O T       *
>   *                                         *
>   *   Version   3.05/07    6 October 2003   *
>   *                                         *
>   *  You are welcome to visit our Web site  *
>   *          http://root.cern.ch            *
>   *                                         *
>   *******************************************
> 
> Compiled for linux with thread support.
> 
> CINT/ROOT C/C++ Interpreter version 5.15.94, June 30 2003
> Type ? for help. Commands must be C++ statements.
> Enclose multiple statements between { }.
> root [0] TFile *f ; f = File::Open("rfio:/castor/cern.ch/na60/test/a.root","")                      
> SysError in <TRFIOFile::TRFIOFile>: file /castor/cern.ch/na60/test/a.root an not be opened for reading (Success)
> (class TFile*)0x0
> root [1]
> 
> 
> ======
> VERSUS
> ======
> 
> [lxplus081] /afs/cern.ch/user/n/na60cdr > klist
> Ticket file:    /tmp/tktp1104032764
> Principal:      na60cdr@CERN.CH
> 
>   Issued           Expires          Principal
> Dec  8 15:52:31  Dec  9 17:18:52  krbtgt.CERN.CH@CERN.CH
> Dec  8 15:52:31  Dec  9 17:18:52  afs@CERN.CH
> [lxplus081] /afs/cern.ch/user/n/na60cdr > nstouch /castor/cern.ch/na60/test/a.root
> [lxplus081] /afs/cern.ch/user/n/na60cdr > root -b
>   *******************************************
>   *                                         *
>   *        W E L C O M E  to  R O O T       *
>   *                                         *
>   *   Version   3.05/07      27 July 2003   *
>   *                                         *
>   *  You are welcome to visit our Web site  *
>   *          http://root.cern.ch            *
>   *                                         *
>   *******************************************
> 
> Compiled for linux with thread support.
> 
> CINT/ROOT C/C++ Interpreter version 5.15.94, June 30 2003
> Type ? for help. Commands must be C++ statements.
> Enclose multiple statements between { }.
> root [0] TFile *f ; f = TFile::Open("rfio:/castor/cern.ch/na60/test/a.root","")
> (class TFile*)0x86893e0
> root [1] f->ls()
> TRFIOFile**             rfio:/castor/cern.ch/na60/test/a.root   
>  TRFIOFile*             rfio:/castor/cern.ch/na60/test/a.root   
>   KEY: TObject  TObject;1       Basic ROOT object
> root [2]
> 
> 
> 
> André David
> ----------------------------------
> The NA60 Experiment at CERN
> 
> 
> 
> 
> 

-- 
...............................................................................................
                                            \|||/   
                                            (o o)
=========>>================\        /====oo0-(_)-0oo==<<==     =======
  Andreas Morsch           \\      //                        //       \\
  CERN EP/AIP               \\    //                        //         \\
  1211 Geneva 23             \\  //  Tel. +41.22.767.8617  ||           ||
                              \\//                         || A l I c E ||
  Switzerland                 //\\                         ||     h     || 
                             //  \\  Fax. +41.22.767.9480   \\         //
                            //    \\                         \\       // 
                           //      \\                          =======
=========<<================/        \==============>>====================      
                                                       || ||                
                                                      oo0 0oo   
................................................................................................



This archive was generated by hypermail 2b29 : Thu Jan 01 2004 - 17:50:17 MET