Hi Richard, Here a quickfix: use max_allow_packet directive directly into your dump command. mysqldump --max_allowed_packet=512m nms_wiki > backup.sql If you want to understand this more, you should try to change my.cnf, in the section [mysqldump] (just like there is [client], you could create it if you haven't) and try the command without putting max_allowed_packet into the command, it should work too. Sincerely, -- Guillaume Fenollar XWiki SysAdmin Tel : +33 (0)1.83.62.65.97 2012/1/13 goldring, richard <richard.goldring(a)uk.thalesgroup.com > Hi All, > Running ... > mysqldump nms_wiki > backup.sql > Returns ... > mysqldump: Error 2020: Got packet bigger than 'max_allowed_packet' bytes > when dumping table `xwikiattrecyclebin` at row: 2 > I did have some rather large import attachments - which I deleted but they > seem to have gone into the recycle bin - so I used the code snippet > http://extensions.xwiki.org/xwiki/bin/view/Extension/Empty+Trash+Bin > To supposedly empty the bin, but get the same error above when I try and > dump the database seeming to indicate the recycle bin isn't empty. > Tried increasing the max_allowed_packet when I run mysql, but doesn't seem > to have any affect - is something overriding it? We're running on Solaris. > Any ideas/help would be appreciated so I can backup the wiki successfully > on > mysql!!!! > Thanks. > Regards, > Richard > _______________________________________________ > users mailing list > users(a)xwiki.org > http://lists.xwiki.org/mailman/listinfo/users