Hi Caleb, hello xwiki users, First: thank you for your information, so by default it loads up to 10 MB and it may load up to 30 MB. Therefore a parameter of the xwikipreferences "root object" must be changed. How can I set the value of the parameter? Under XWiki-Administration there is no "edit object" available. Generally I can run the machine with as much ram as needed, this would not be an issue. Second: If I cannot load larger files the 30 MB, is there any chance to include external ebooks into the lucene search (index)? This is an important issue, if I cannot upload the ebooks to xwiki. Best regards Pierre ________________________________________ Von: Caleb James DeLisle [calebdelisle(a)lavabit.com] Gesendet: Dienstag, 14. September 2010 08:43 An: XWiki Users Betreff: Re: [xwiki-users] Uploading larger files The problem is memory expense. When you upload an attachment, it is put into RAM, then it's saved in the database, but before the save is committed, the content is copied and converted to a base64 String (expanding it by 30% for the base64 then doubling it because java uses UTF-16 for String) then it is formed into an RCS archive node using Apache jrcs which makes a copy of the content (also in ram). The result is you need memory capacity which is many times the size of the attachment. The short answer is although we are looking at ways to improve memory footprint, currently the effective limit is about 30MB. Caleb Dalluege, Pierre (extern) wrote: _______________________________________________ users mailing list users(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/users