https://bugzilla.wikimedia.org/show_bug.cgi?id=21427


Markus Krötzsch <[email protected]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|critical                    |normal
            Summary|If parameter $smwgQMaxSize  |Allowing and using large and
                   |is 16 or more SMW crashes   |complex #ask queries can
                   |                            |freeze database




--- Comment #2 from Markus Krötzsch <[email protected]>  2009-11-09 
11:09:50 UTC ---
Please provide further details on the problem. Especially we need an example
URL where the problem can be seen, or a detailed description of the environment
where the problem occurs (version numbers of all involved software, details
about the query and about the contents of the wiki [esp. the data on
Special:SemanticStatistics], "format=debug" output of the query).

In general, the very purpose of $smwgQMaxSize is to prevent such queries. There
will always be a size of query that is not doable for a DBMS any more.
Performance can always be improved, but it is not a bug if there exist large
and complex queries that are out of scope for your DBMS. Nothing scales
indefinitely.


-- 
Configure bugmail: https://bugzilla.wikimedia.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.
_______________________________________________
Wikibugs-l mailing list
[email protected]
https://lists.wikimedia.org/mailman/listinfo/wikibugs-l

Reply via email to