[TYPO3-core] RFC #5045, #5077, #8649: Import/Export requires lot of memory

[Steffen Kamper]

Bernhard Kraft schrieb:
> Hallo there,
> 
> This is an SVN patch request for trunk.
> 
> Problem: The export/import tool requires a lot of memory when exporting
> a set of pages containing lot of files.
> 
> Reason: All files get loaded into memory, stored in kinda "mega-array" -
> and then serialized when written to the T3D output file. Same approach -
> different direction when importing.
> 
> Current "workaround": Do not allow any files larger than 10MB to get
> exported
> 
> 
> Proposed solution: See attached diff. Files to get exported get
> written/appended to a "container" file which is not in memory. This
> container file gets appended to the final T3D in a way it can be read on
> import.
> Raised limit of files to get exported up to 100MB (could even be more -
> but didn't try)
> 
> Doesn't work for XML exports
> 
> A patched version (T3X) of the impexp extension can be downloaded at the
> following link - you should move the extensions to the "sysext" folder
> after installing locally:
> 
> http://think-open.org/kraftb/index/t3x/T3X_impexp_memoryfix1_2008-07-18.t3x
> 
> 
> Any response welcome ... Please CC to my email (I currently get lost in
> the core-list - and try to find a thunderbird plugin easing my problems
> of follwing threads in which I took part)
> 
> 
> 
> 
> greets,
> Bernhard
> 

beside these CGL-things +1 for the idea and from reading so far. i will 
test the patch asap.

vg Steffen