Re: Ntuple disconnects

From: Rene Brun (Rene.Brun@cern.ch)
Date: Fri Jan 22 1999 - 10:39:06 MET


William Love wrote:
> 
>   rootworld
> 
>    This problem is intermittent and non reproducible but I have to
>  ask.  Has anyone while using NTuples in root had the problem
>  that at some point the connection to the data seems to break?
>  One Draw command works correctly, the next comes up empty
>  and all subsequent attempts are empty (1d draws have arb. scale
>  0 to 600 on x axis, -1 to 1 on y axis and zero contents, 2d draws
>  make a blank canvas).  It happens to me maybe 3 or 4 times a
>  day of continuous ntuple work.  Valery captured a whole command
>  sequence from my history file and we reran it with no failure.
>    Only solution so far is to .q, root, TFile and proceed - a bit
>  tedious.
> 
>                                     Bill Love

Hi Bill,
This looks strange.
Could you identify which version of Root and which platform?
Could you send me an example of session?

Rene



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