Re: [ROOT] R__zip: bad pack level

From: Huw Shorthouse (huw@SLAC.stanford.edu)
Date: Fri Mar 29 2002 - 01:30:41 MET


Hi,

I haven't specified a compression level or any options when opening
TFile's (except "recreate").

I'm just filling a cloned tree to reduce the number of entries.  The
original file seems fine (!?) and then I open a new file, clone the tree
and fill some of the entries.  The [R__zip: bad pack level] errors only
seem to occur at certain times from tree->Fill() (and the new reduced file
is unreadable).

Its hard to see what could be going wrong - I've never had this problem
before when doing exactly the same thing (with the same version, 3.00/06).

The only thing I can think of is a problem with the original root file but
I made it and so can't see anything wrong with it.  Its just created with
origTree->Fill(), origTree->Write(); outputFile->Close(); (if that means
anything).  Are there any obvious problems that could cause this.

Cheers,
Huw

On Thu, 28 Mar 2002, Rene Brun wrote:

> Huw,
>
> You get this message if you have specified a compression level > 9
>
> Rene Brun
>
> Huw Shorthouse wrote:
> >
> > Hi,
> >
> > Could anyone tell me what the error message "R__zip: bad pack level"
> > means.  Its occurring when I fill a subset of a tree so I guess I must be
> > doing something wrong.
> >
> > Cheers,
> > Huw
>



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