18 Mar
2013
18 Mar
'13
6:01 p.m.
Hi,
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> 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 <jeremie.bousquet(a)gmail.com>
them ?
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Answering myself partly ...
2013/3/18 Jeremie BOUSQUET <jeremie.bousquet(a)gmail.com>
> 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
Br,
Jeremie
[1] http://jira.xwiki.org/browse/XWIKI-8129