Re: [ROOT] Creation of chains

From: Ole Streicher (ole@ifh.de)
Date: Thu Sep 19 2002 - 10:46:27 MEST


Ciao Rene!

Rene Brun writes:
 > If you use 3.03/08, TChain::Merge will automatically swap
 > to a new file when it gets the maximum file limit.

I tried it with 3.03/09. It seems to work; however at the first file
switch I get the error message

Fill: Switching to new file: Run0001.Physics.Tracker.Raw_1.root
dlopen error: /opt/root/lib/root/libGpad.so: undefined symbol: __ti10TPaveLabel
Load Error: Failed to load Dynamic link library /opt/root/lib/root/libGpad.so
*** Interpreter error recovered ***

Is this dangerous? OS is Linux.

I used "TTree::SetMaxTreeSize(1000000);" to see the effect faster ;-)

BTW, is it possible to make the max treesize local to the tree? It is
nothing I would need now ;-) but I could imagine that one would like
to have the size different for different trees.

Ole



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