File size of a closed remote file

[leonardi]

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Please read tips for efficient and successful posting and posting code

ROOT Version: 5.34.36
Platform: CentOS 7
Compiler: gcc 4.9

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My off-line production system is based on C++ and ROOT. To keep track of the amount of written data, when I close an output file I do the following:

  fTFileHandle->cd();
  fTTreeMain->Write();
  fTFileHandle->Close();
  fOutSizeTotal += fTFileHandle->GetSize();
  delete fTFileHandle;

This works fine for local files but when I use this code with xrootd remote files like

root://atlasse.lnf.infn.it//dpm/lnf.infn.it/home/vo.padme.org/test/run_0030616_20201112_151635/run_0030616_20201112_151635_raw_0017.root

I get this error:

Error in <TNetXNGFile::TNetXNGFile>: The remote file is not open

What is the correct procedure to get the final size of a xrootd remote file after closing it?

Thank you

Emanuele Leonardi

[etejedor]

Hello,

Can you try with

  fTFileHandle->Flush();
  fOutSizeTotal += fTFileHandle->GetSize();

before closing the file?