Re: [xwiki-users] Migrating 3.5 to 4.5.2

I can't help you much about the duplicate id issue, but what can I tell you is that using MyISAM is NOT recommended. See http://platform.xwiki.org/xwiki/bin/view/AdminGuide/InstallationMySQL You should try to convert your database to InnoDB and try a migration after. Regards, Sorin B. On Mon, Mar 18, 2013 at 6:56 PM, Jeremie BOUSQUET < jeremie.bousquet(a)gmail.com&gt; wrote: > Mmmm the new problem seems somewhat different: > > mysql> select * from xwikistatsdoc where xws_id='-1514641140'; > +-------------+------------+--------------------------------------------+ > | XWS_ID | XWS_NUMBER | XWS_NAME | > +-------------+------------+--------------------------------------------+ > | -1514641140 | 1981003594 | DUMMY\.Operations.IOT Testing Guideline | > +-------------+------------+--------------------------------------------+ > 1 row in set (0.00 sec) > > mysql> select * from xwikistatsdoc where xws_name='DUMMY\.Operations.IOT > Testing Guideline' and xws_number='1981003594'; > > +----------------------+------------+-------------------------------------------+ > | XWS_ID | XWS_NUMBER | XWS_NAME > | > > +----------------------+------------+-------------------------------------------+ > | -6621163153525844851 | 1981003594 | DUMMY.Operations.IOT Testing > Guideline | > > +----------------------+------------+-------------------------------------------+ > > Exception was: R40000XWIKI6990 migration failed while converting ID from > [-1514641140] to [-6621163153525844851] > > Maybe issue is having 2 entries with same XWS_NAME and XWS_NUMBER, only > difference in name being "." versus "\." ? > > In that case what seems strange, is that when that migration starts, I get > the following warnings: > > ... Skipping invalid statistical entry [1260484991] with name [ > Blog.Dummy.com.] > > I wonder why the "DUMMY.Operations.IOT..." is not skept because of the "." > ?? > > BR, > Jeremie > > > > > 2013/3/18 Jeremie BOUSQUET &lt;jeremie.bousquet(a)gmail.com&gt; > > > Answering myself partly ... > > > > > > 2013/3/18 Jeremie BOUSQUET &lt;jeremie.bousquet(a)gmail.com&gt; > > > >> Hello, > >> > >> I'm trying migration of XWIki 3.5 to 4.5.2, and have some issues ... > >> > >> First, I must tell that I ran the queries described in [1], to cleanup > >> the 3 stats tables. > >> > >> What happened though, is that during the migration I got an OutOfMemory > >> error ... during migration of xwikistatsdoc. > >> I relaunched with more heap (2Go), but got it again. > >> I relaunched after activating safemode for that particular migration > (R40000XWIKI6990), > >> but then I got an issue on duplicate key for the xwikistatsdoc table: > >> > >> Caused by: com.xpn.xwiki.XWikiException: Error number 3005 in 3: > >> R40000XWIKI6990 migration failed while converting ID from [232911443] to > >> [7825842251281349221] > >> > >> A quick analysis of incriminated rows shows (sorry for display): > >> > >> > >> > +----------------------+------------+----------------------------+---------------+ > >> | XWS_ID | XWS_NUMBER | XWS_NAME | > >> XWS_CLASSNAME | > >> > >> > +----------------------+------------+----------------------------+---------------+ > >> | 232911443 | 1956069455 | Main | > >> | > >> | 5956685394971351254 | 1956069455 | | > >> | > >> | 7825842251281349221 | 1956069455 | Main | > >> | > >> > >> > +----------------------+------------+----------------------------+---------------+ > >> > >> To me it seems that as migration process was interrupted, maybe stat > with > >> id 232911443 was migrated successfully (in a previous run) to id > 7825842251281349221, > >> but old row was not removed. > >> So when migration occurs again, it tries to migrate that same line again > >> and fails. > >> > >> So I will try to run again after removing that line, > >> > > > > ... that fails again, on another row. I believe that means that my table > > is now corrupted and won't migrate, unless I remove the "potential" > > duplicates beforehand ... > > I wonder if it could be somewhat possible to write such a script, ie that > > would remove already migrated rows, or rows that once migrated will > > generate duplicates ? > > If not I would go back to my backup ... > > > > > >> but in case it fails, is it possible to only: > >> - put back my backup of the 3 stats tables only (as the rest was > >> successfully migrated) > >> - relaunch the migration > >> > >> Would I need to update something in the migration temp tables to achieve > >> that ? (ie restart migration only for stats tables), or will it do it by > >> itself as it knows that step was unsuccessful ? > >> > >> Asking that because migration is painfully long, so I prefer to prepare > >> myself to loose less time ... tomorrow ;-) > >> > >> Bonus question: There are plenty of rows in xwikistatsdoc with empty > >> value in "XWS_NAME" field. Are these normal ? Can I / Should I purge > them ? > >> > >> Br, > >> Jeremie > >> > >> [1] http://jira.xwiki.org/browse/XWIKI-8129 > >> > > > > > _______________________________________________ > users mailing list > users(a)xwiki.org > http://lists.xwiki.org/mailman/listinfo/users > _______________________________________________ users mailing list users(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/users