[ome-users] 2GB image file size limit in 32-bit OME ?

[Davies, Pete E.]

The 2 GB file limitation stems from many pieces of software that handle
file sizes using a signed 32-bit int (2^31).  Until 2.2 Apache had an
issue with this (http://httpd.apache.org/docs/2.2/new_features_2_2.html
- see Large File Support).  Many web browsers also have issues with
large files; Firefox being the notable exception.  

Regards, 

Pete

-----Original Message-----
From: ome-users-bounces at lists.openmicroscopy.org.uk
[mailto:ome-users-bounces at lists.openmicroscopy.org.uk] On Behalf Of
Curtis Rueden
Sent: Friday, September 28, 2007 3:17 PM
To: Othmar Korn
Cc: ome-users at lists.openmicroscopy.org.uk
Subject: Re: [ome-users] 2GB image file size limit in 32-bit OME ?

Hi Othmar,

I am not sure what the cause of such limitations is, but the impending
release of OME 2.6.1 uses Bio-Formats to import data rather than the
old-school importers written in Perl, and Bio-Formats supports files
larger than 2 GB in size. So it's possible this problem will go away
with the 2.6.1 release (I haven't tested it). Perhaps one of the
Baltimore developers can comment further.

Your best bet is probably just to give it a try and see what happens.
;-)

-Curtis

On 9/27/07, Othmar Korn <o.korn at griffith.edu.au> wrote:
>
> Greetings all,
>
> I'm hoping someone can answer a couple of questions for me in regards
to
> maximum supported image file sizes for OME in 32-bit systems.
>
> 1. The page here:
> http://www.openmicroscopy.org.uk/api/omeis/limitations.html
>  says that 2GB+ images are not "handled correctly" in 32-bit systems..
is
> that correct?  What does that actually mean, in practical terms?
>
> 2. If I'm forced to use a 32-bit system, any ideas on how I might go
about
> importing existing images that are larger than 2GB?  I'm hoping
there's a
> solution that doesn't involve going back and splitting image stacks
> manually.
>
> Many thanks,
> Othmar
>
> _______________________________________________
> ome-users mailing list
> ome-users at lists.openmicroscopy.org.uk
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>
>
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