[xwiki-users] Max Upload Size questions

Hello everyone, I was testing the import/export tool from one wiki to another (I'm actually trying to export from an online xwiki to a testing instance locally in my machine), and the resulting file from the export process turned out to have around 255MB. I have the xwiki enterprise 1.7.1 installed on my machine (including a Jetty container and an HSQLDB database all set up). When I try to "upload" the exported file, I get an error message saying that the max upload size is 10MB. I already changed the upload_maxsize property in xwiki.preferences to 300MB (the information in the field was written in Bytes, equivalent to 300MB), but yet even so, I keep getting the same error message. I think this might be a HSQLDB handicap. Am I correct? In any case, how can I solve this issue so I can proceed with this test?! Thanks a lot ! Roney