Attach big document

Hi I'd like to attach big document to a XWiki page. But If the doc is bigger than 1MB it fails with the following message : java.sql.BatchUpdateException: Packet for query is too large (2152630 > 1048576). You can change this value on the server by setting the max_allowed_packet' variable. It seems that it exists a parameter to allow the insertion in the database of document bigger that 1 048 576 B. Does someone know where I should add this param ? BTW, I use MySQL 4.1 over GNU/Linux. Thanks in advance -- Xavier MOGHRABI - Consortium ObjectWeb Email: xavier.moghrabi at objectweb.org Phone: +33 4 76 61 52 35