Re: Ntuple disconnects

Rene Brun (Rene.Brun@cern.ch)
Fri, 22 Jan 1999 10:39:06 +0100

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