Hi Louis, Please check http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Attachments and let us know if it solves your problems (hint: configure xwiki to use filesystem if you wish to store large attachments). Thanks -Vincent On 22 Oct 2015 at 22:42:33, Louis Höfler (louis.hoefler(a)mathematek.de) wrote: Hello Everyone, i currently try to upload big files as attachment. I run mysql 5 with xwiki within tomcat 8 on debian. However, if i upload the File (700mb) it stops after 100%, showing an error "There was an error uploading your file". Can someone help me fixing that error? Thank you, Louis

Hi Louis On 22 Oct 2015 at 23:14:05, Louis Höfler (louis.hoefler@mathematek.de(mailto:louis.hoefler@mathematek.de)) wrote: It’s possible with very large memory settings. There are several reasons why it takes a lot of memory but one reason is that AFAIR mysql doesn’t have a streaming api for blobs and thus the whole attachments needs to be fully in memory. In addition our code does manipulation of the attachment in memory, requiring even more memory. At some point we computed the memory required and it was like 27 times or so the size of the attachment but we improved it and I don’t know what’s the requirement now (would be interesting to find out). If you’re interested by details * http://jira.xwiki.org/browse/XWIKI-8910 * http://jira.xwiki.org/browse/XWIKI-11209 * http://jira.xwiki.org/browse/XWIKI-10611 * http://jira.xwiki.org/browse/XWIKI-8189 Thanks -Vincent