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Hi Ioanna,

your issue is more relevant to CMS user support where I can see you sent 
this email as well. There was also provided feedback to you by other CMS 
site admin. Please, let's continue discussion there.

XROOTD-L@ mailing list addresses generic discussions in order to 
help/answer XRootD admins server related or other operations issues.

Thanks,
Marian

On 1/30/19 3:51 AM, Ioanna Papavergou wrote:
> Hi all,
> 
> For the last few days I have been trying to produce some ntuples for my 
> analysis, using miniAOD files located here: 
> root://cms-xrd-global.cern.ch//store/mc/RunIIFall17MiniAOD/....
> 
> When I run my configuration file interactively everything works smoothly 
> and I get the expected ntuples. However, when I am submitting my jobs at 
> the batch system of lxplus my jobs exit unsuccessfully with the 
> following message in the STDOUT file:
> 
> ==== running ====
> 
> Reading phedex query from cache: 846 samples, 0.6 hours old
> 
> Error in <TNetXNGFile::Open>: [FATAL] Redirect limit has been reached
> 
> loading FWLite.
> 
> Using analysis type: SOS
> 
> Component                                               | N(files)      
> N(k ev) | N(jobs) | file/job    k ev/job | lumi eq [1/fb]
> 
> ------------------------------------------------------- | -------- 
> ------------ | ------- | -------- ----------- | -----------
> 
> DYJetsToLL_M50                                          |      372    
> 26923.935 |       2 |   186.00   13461.000 |       2.159
> 
> ------------------------------------------------------- | -------- 
> ------------ | ------- | -------- ----------- | -----------
> 
> TOTAL                                                   |      372    
> 26923.935 |       2 |   186.00   13461.967 |
> 
> Dataset 
> /DYJetsToLL_M-50_TuneCP5_13TeV-amcatnloFXFX-pythia8/RunIIFall17MiniAOD-94X_mc2017_realistic_v10-v1/MINIAODSIM 
> is not available, will use AAA
> 
> Found it
> 
> Component                                               | N(files)      
> N(k ev) | N(jobs) | file/job    k ev/job | lumi eq [1/fb]
> 
> ------------------------------------------------------- | -------- 
> ------------ | ------- | -------- ----------- | -----------
> 
> DYJetsToLL_M50                                          |      372    
> 26923.935 |       2 |   186.00   13461.000 |       2.159
> 
> ------------------------------------------------------- | -------- 
> ------------ | ------- | -------- ----------- | -----------
> 
> TOTAL                                                   |      372    
> 26923.935 |       2 |   186.00   13461.967 |
> 
> Loading FW Lite
> 
> [QGLikelihoodCalculator]: Initializing from file: 
> /afs/cern.ch/work/i/ipapaver/SOS_lepton_2017/11_2/CMSSW_9_4_11/src/PhysicsTools/Heppy/data/pdfQG_AK4chs_13TeV_cmssw8020_v2.root
> 
> [QGLikelihoodCalculator]: Initialized binning of pdfs...
> 
> [QGLikelihoodCalculator]: pdfs initialized...
> 
> [QGLikelihoodCalculator]: Initializing from file: 
> /afs/cern.ch/work/i/ipapaver/SOS_lepton_2017/11_2/CMSSW_9_4_11/src/PhysicsTools/Heppy/data/pdfQG_AK4chs_13TeV_cmssw8020_v2.root
> 
> [QGLikelihoodCalculator]: Initialized binning of pdfs...
> 
> [QGLikelihoodCalculator]: pdfs initialized...
> 
> [QGLikelihoodCalculator]: Initializing from file: 
> /afs/cern.ch/work/i/ipapaver/SOS_lepton_2017/11_2/CMSSW_9_4_11/src/PhysicsTools/Heppy/data/pdfQG_AK4chs_13TeV_cmssw8020_v2.root
> 
> [QGLikelihoodCalculator]: Initialized binning of pdfs...
> 
> [QGLikelihoodCalculator]: pdfs initialized...
> 
> Cannot save prescale information in MC: will put everything to unprescaled
> 
> Aggressive prefetching level 2
> 
> Failed the big query:  ['edmFileUtil', '--ls', '-j', 
> 'root://cms-xrd-global.cern.ch//store/mc/RunIIFall17MiniAOD/..........
> 
> 
> 
> Try url:  
> root://cmsxrootd.fnal.gov//store/mc/RunIIFall17MiniAOD/DYJetsToLL_M-50_TuneCP5_13TeV-amcatnloFXFX-pythia8/MINIAODSIM/94X_mc2017_realistic_v10-v1Error 
> in <TNetXNGFile::Open>: [FATAL] Redirect limit has been reached
> 
> Error in <TNetXNGFile::Open>: [FATAL] Redirect limit has been reached
> 
> Error in <TNetXNGFile::Open>: [ERROR] Server responded with an error: 
> [3011] Unable to open file 
> /eos/cms/store/mc/RunIIFall17MiniAOD/DYJetsToLL_M-50_TuneCP5_13TeV-amcatnloFXFX-pythia8/MINIAODSIM/94X_mc2017_realistic_v10-v1/50000/7642F20E-30DC-E711-9548-0025905A60B8.root; 
> No such file or directory
> 
> 
> /50000/7642F20E-30DC-E711-9548-0025905A60B8.root
> 
> and then it crashes.
> 
> I am ssh-ed to an lxplus machine (connected from Greece) and using 
> python 6.10/09 in CMSSW_9_4_11.
> 
> I would really appreciate any help or insight on how to overcome this 
> error and continue the tuple production on the batch system.
> Also, it is not very clear to me why I do not get the same error message 
> when I run interactively.
> 
> Thanks a lot in advance,
> Ioanna
> 
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