Turns out all my wiki problems with disappeared attachment, scripts not running, etc were down to partition /var running out of disk space! So moved default locations of apache tomcat and mysql to a much bigger partition using symbolic links to link to the new locations and now all seems well. Should have checked the obvious (disk space) first! So if anyone else gets strange behaviour with xwiki - check your disk space first and save yourself a lot of time and hassle chasing down these 'problems'! -----Original Message----- From: users-bounces(a)xwiki.org [mailto:users-bounces@xwiki.org] On Behalf Of goldring, richard Sent: 16 January 2012 08:18 To: 'XWiki Users' Subject: Re: [xwiki-users] Can't attach files to wiki Yes its strange, This has happened since migrating from version 2.7 to 3.2. The import of the wiki pages via Exported xar files seemed to work ok, and the attachments are listed at the bottom of the wiki pages, butwhen you cick on them to view the attachments the wiki displays aa error message that the "The attachment does not exist." Has anyone any idea what's happened and how to fix it? Thanks. Regards, Richard -----Original Message----- From: users-bounces(a)xwiki.org [mailto:users-bounces@xwiki.org] On Behalf Of Marius Dumitru Florea Sent: 13 January 2012 17:32 To: XWiki Users Subject: Re: [xwiki-users] Can't attach files to wiki Hi Richard, Are you talking about the standard Attachments tab at the bottom of a wiki page? Does it happen all the time? You should get this only if the session expires. See http://www.xwiki.org/xwiki/bin/view/ReleaseNotes/ReleaseNotesXWikiEnte rprise 32#HCSRFpreventionisenabledbydefault . In XWiki Enterprise 3.2 CSRF has been enabled by default. I haven't heard any complains so far, at least not related to the attachments upload

Hope this helps, Marius On Fri, Jan 13, 2012 at 2:36 PM, goldring, richard <richard.goldring(a)uk.thalesgroup.com> wrote: .... > > > Warning > > This request contains an invalid authentication information. > > This might happen in the following situations: > > * You left the editor open in another window/tab and logged off > and on again > * Your authentication token exipired after a long period of > inactivity > * Somebody tried to perform a CSRF attack > > If you are sure that none of these situations apply in your case, > you might have found a bug. We are sorry about that, please report > it on XWiki JIRA > > Do you want to resend the request? If unsure, say No. > no > > > ... Anyone know what's happening and how to fix it? I'm using XWIKI > 3.2, Tomcat 5.5 and MySQL 5. > > Thanks. > > Regards, > > Richard > > -----Original Message----- > From: users-bounces(a)xwiki.org [mailto:users-bounces@xwiki.org] On > Behalf Of goldring, richard > Sent: 13 January 2012 09:25 > To: 'XWiki Users' > Subject: Re: [xwiki-users] Backing up xwiki using mysql > > Thanks Guillaume - it worked a treat - I'll setting up the my.cnf > another time, but at least I can backup now! > > Does anyone know more about the recycle bin - don't seem able to > access from the wiki, and (I guess any deleted wiki pages or > attachments go into it?) the code snippet didn't seem to empty it > from the database - any ideas how to empty it? > > -----Original Message----- > From: users-bounces(a)xwiki.org [mailto:users-bounces@xwiki.org] On > Behalf Of Guillaume Fenollar > Sent: 13 January 2012 08:55 > To: XWiki Users > Subject: Re: [xwiki-users] Backing up xwiki using mysql > > 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+Bi >> n >> >> 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