[Zope] Re: MemoryError exception when importing a zexp file

[Winterflood, Jonathan]

Hi,

Failing with 10 GB seems weird... Did you monitor real memory usage to see where it failed?
I'm thinking maybe the python interpreter / zope / something is limiting its memory usage (IIRC, Java VMs are limited to 128M by default)
Could someone confirm/infirm this?

I don't have any experience w/ Plone, so I don't know whether it would work, but I imagine you might have to re-import the pieces in the right order, so that there wouldn't be any broken dependencies (just speculating here)

I don't know what get's exported in the .zexp file, but maybe packing the database to remove old versions of the Zope objects will reduce the size (not sure whether the history is included in the export... but maybe)

Cheers

Jonathan

-----Message d'origine-----
De : zope-bounces at zope.org [mailto:zope-bounces at zope.org] De la part de Ben Lobo
Envoyé : mercredi 30 mai 2007 11:32
À : zope at zope.org
Objet : [Zope] Re: MemoryError exception when importing a zexp file

Thanks for the tip. I tried increasing the swap file to 10GB but still got
the same memory error.

I'm now considering exporting the Plone site (cos that's what it is) one
piece at a time and reimporting it into a clean Plone site. Any thoughts on
whether or not this is a good idea?

Cheers

Ben


"Winterflood, Jonathan" wrote:
>Hi,
>
>Maybe you could try giving the machine more swap space (partition in Linux,
file in Windows)
>You'd probably have performance issues, but if the import is a one-timer,
it might be acceptable.
>
>Jonathan
>
>-----Message d'origine-----
>De : zope-bounces at zope.org [mailto:zope-bounces at zope.org] De la part de
Jens Vagelpohl
>Envoyé : mardi 29 mai 2007 09:09
>À : zope list user
>Objet : Re: [Zope] MemoryError exception when importing a zexp file
>
>-----BEGIN PGP SIGNED MESSAGE-----
>Hash: SHA1
>
>
>On 29 May 2007, at 08:36, Ben Lobo wrote:
>
>> Hi,
>>
>> I'm trying to import a .zexp file that's 1.6GB but it continually
>> fails due
>> to a MemoryError exception. I guess that adding more RAM would
>> probably fix
>> this problem but does anyone know if there's any way of getting
>> around this
>> sort of problem without increasing the RAM?
>
>Short of increasing memory on that specific host you could also
>create a sandbox on a different machine with more RAM and then copy
>the database when it's done.
>
>jens



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