Hello,
I'm trying to import Wikipedia xml (English dumps w/o history) into the
Xwiki 6.0.1 running using PostgreSQL as a DB. I'm using mediawiki/1.0
syntax to easy job on my side especially when the task is to test if
xwiki is able to hold just this amount of data and nothing more.
So far probably the most critical found issues are:
1) wikipedia's links are a little bit longer than expected. I'm afraid
this is usually whole citation going into the link hence after
installing xwiki and initialization of hibernate I needed to switch it
off and alter PostgreSQL table by:
alter table xwikilinks alter column xwl_link type varchar(4096);
that ensures that much more pages may be imported.
2) while importing I hit issue on duplication of the xwikircs_pkey key.
It shows as:
STATEMENT: insert into xwikircs (XWR_DATE, XWR_COMMENT, XWR_AUTHOR,
XWR_DOCID, XWR_VERSION1, XWR_VERSION2) values ($1, $2, $3, $4, $5, $6)
ERROR: duplicate key value violates unique constraint "xwikircs_pkey"
DETAIL: Key (xwr_docid, xwr_version1,
xwr_version2)=(3170339397610733377, 1, 1) already exists.
in PostgreSQL console and as:
2014-09-22 00:53:51,601
[http://localhost:8080/xwiki/rest/wikis/xwiki/spaces/Wikipedia/pages/Brecon_&_Radnorshire]
WARN o.h.u.JDBCExceptionReporter - SQL Error: 0, SQLState: 23505
2014-09-22 00:53:51,601
[http://localhost:8080/xwiki/rest/wikis/xwiki/spaces/Wikipedia/pages/Brecon_&_Radnorshire]
ERROR o.h.u.JDBCExceptionReporter - Batch entry 0 insert into
xwikircs (XWR_DATE, XWR_COMMENT, XWR_AUTHOR, XWR_DOCID, XWR_VERSION1,
XWR_VERSION2) values ('2014-09-22 00:53:51.000000 +02:00:00', '',
'XWiki.Admin', 3170339397610733377, 1, 1) was aborted. Call
getNextException to see the cause.
2014-09-22 00:53:51,601
[http://localhost:8080/xwiki/rest/wikis/xwiki/spaces/Wikipedia/pages/Brecon_&_Radnorshire]
WARN o.h.u.JDBCExceptionReporter - SQL Error: 0, SQLState: 23505
2014-09-22 00:53:51,601
[http://localhost:8080/xwiki/rest/wikis/xwiki/spaces/Wikipedia/pages/Brecon_&_Radnorshire]
ERROR o.h.u.JDBCExceptionReporter - ERROR: duplicate key value
violates unique constraint "xwikircs_pkey"
Detail: Key (xwr_docid, xwr_version1,
xwr_version2)=(3170339397610733377, 1, 1) already exists.
in xwiki/tomcat console.
This issue I'm not able to solve so far as it looks like the key value
itself is somehow generated by xwiki probably from some other data and
I'm not able to find so far related code.
Also the question is if this is kind of hash function if I did not break
that by making links longer by hack in (1).
Any comment on (1) and its correctness and idea to fix (2) is highly
appreciated here.
Thanks!
Karel
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