Re: Fwd: Re: [Pytables-users] Danger of file corruption?

[Francesc A. <fa...@py...>]

A Dijous 30 Setembre 2004 18:44, Norbert Nemec va escriure:
> Sounds like a fundamental flaw in the design of HDF5 - a high-end data-storage 
> system like HDF5 without protection against file corruption sounds 
> unbelievable to me.
> 
> The argument that this is the same for any kind of file-storage does not hold 
> here: I you use a journalled filesystem, you know that basic write operations 
> are atomic. Based on that, it is possible with some care to design a 
> file-format and protocol of writing that leaves the file in a well-defined 
> state at any moment.

I agree. The problem is that HDF5 is not journaled, so you cannot be certain
that an on-going operation would be atomic.

Making HDF5 to support journaled files would be a nice idea, but the problem
is who is willing to do that.

Anyway, I think it might be better to debate this on HDF5 list, rather than
here.

Cheers,

-- 
Francesc Alted