[Gate-users] problem in merge using "hadd" command

[Arthur Bon]

Dear Hadi,

Indeed 100 Gb is the default limit for a single Root file.

To override it you have to go through a script by changing the size limit parameter.

Some examples here :

https://root-forum.cern.ch/t/root-6-04-14-hadd-100gb-and-rootlogon/24581/3

https://www.programmersought.com/article/2967473156/

I don't know what you're doing but keep in mind that it's more efficient to read several "small" files in a row than a "big" one.

Regards,
Arthur


De : Gate-users <gate-users-bounces at lists.opengatecollaboration.org> De la part de Hadi Rezaei
Envoyé : mercredi 3 février 2021 10:59
À : gate-users at lists.opengatecollaboration.org
Objet : [Gate-users] problem in merge using "hadd" command

Dear all
I used the "hadd" command to merge 15 jobs with a size of about 420 GB but I found the following error. Did anyone face this error.?
Can not the cluster tools merge more than 100GB?

"Fatal in <TFileMerger::RecursiveRemove>: Output file of the TFile Merger (targeting resultxcat5s.root) has been deleted (likely due to a TTree larger than 100Gb)"

Regards.
Hadi

-------------- section suivante --------------
Une pièce jointe HTML a été nettoyée...
URL: <http://lists.opengatecollaboration.org/pipermail/gate-users/attachments/20210203/bf3378c0/attachment.html>