On Tue, Nov 10, 2009 at 16:46, Vincent Massol <vinc...@massol.net> wrote:
>
> On Nov 10, 2009, at 4:32 PM, Guillaume Lerouge wrote:
>
>> Hi Mary Ellen,
>>
>> On Tue, Nov 10, 2009 at 4:22 PM, MaryEllen Coleman <m...@us.ibm.com>
>> wrote:
>>
>>>
>>> Is there a limit to the number of files that can be attached to an
>>> XWiki
>>> page?  If a page has 199 attachments, would it cause any problems or
>>> issues?
>>>
>>
>> More than the total number of attached files, it's the size of those
>> files
>> that might be an issue. Each time a new document is added a new
>> version of
>> the page is stored on the database, that has a copy of all the other
>> documents currently attached to itself. Meaning that if each of your
>> attached files is 1MB, your total page size is 200MB and each time
>> you add
>> an attached file it becomes a bit heavier. Once it becomes really big
>> operations on that page start taking a lot of time and consume a lot
>> of
>> memory resources.
>
> I'm not sure this is right.
>
> Attachments are not loaded when the doc is loaded (only the list of
> attachment is loaded which is a single query to the DB to get the
> names) so you can have as many as you want I believe. It's only when
> an attachment is manipulated and thus loaded in memory that it takes
> up memory space.
>
> Now I haven't tested it for real so I don't really know.
>
> Can someone with more experience qualify this answer?

Yes attachment content is loaded on demand, when you load a page you
get only a list of attachments names.

>
>> To make it short: it will work if you've got a big computer on the
>> backend
>> but it's not recommended.
>>
>> A better solution would be to create a new page for each file and
>> list all
>> the pages you've created (since XE 1.8 you can use a space homepage
>> for
>> this).
>
> This is pretty cumbersome and I wouldn't recommend it.
>
> Thanks
> -Vincent
>
>> Guillaume
>>
>>
>>> ** Mary Ellen
>>> ______________
> _______________________________________________
> users mailing list
> users@xwiki.org
> http://lists.xwiki.org/mailman/listinfo/users
>



-- 
Thomas Mortagne
_______________________________________________
users mailing list
users@xwiki.org
http://lists.xwiki.org/mailman/listinfo/users

Reply via email to