Sergey:

I doubt that anything would show up in the logs. Nothing happens except 
that the page fails to load and displays a blank white screen. Every 
page /not/ having an annotated historical date /does/ load--including 
pages having other semantic annotations of types other than historical 
dates.

I have the setup mocked-up on my personal machine. That will allow me to 
institute a testing program without causing annoyance to my fellow site 
users and administrators.

Terry

Sergey Chernyshev wrote:
> Are there any problems reported in error log? Try to enable debug info 
> and so on - I would guess that it's some PHP limit that you didn't 
> re-enable in the new setup. Apache logs should tell you more.
>
>         Sergey
>
>
> On Wed, Feb 27, 2008 at 1:36 PM, Markus Krötzsch 
> <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote:
>
>     On Mittwoch, 27. Februar 2008, Temlakos wrote:
>     > Markus:
>     >
>     > When you had issued release 1.0.1 of SemanticMediaWiki, the wiki
>     that I
>     > co-administer was down--someone had compromised our web host's
>     server,
>     > either with a faulty PHP upgrade or with a trojan; no one knows
>     for sure.
>     >
>     > We have taken one month to get back on-line on a fully dedicated
>     > server--essentially a "virtual-private-server" physical host
>     with only
>     > one virtual host, that being ourselves.
>     >
>     > And when I reinstalled our wiki and then installed SMW 1.0.1, not a
>     > single page with my custom data type "Historical Date" would
>     load. They
>     > all would hang. (Pages not having this data type would not hang.)
>
>     Oh, that is strange. So far SMW did not include the historical
>     date anyway, so
>     I cannot imagine what breaks there -- maybe you need some patch
>     that was
>     accidentally present in SMW 1.0 before (such as having the
>     historical date in
>     the language file)? The changes to SMW 1.0.1 were really minor,
>     and it is
>     certainly safe to copy language files from SMW1.0 if this helps.
>
>     >
>     > You will no doubt anticipate me and say that the Historical Date
>     type
>     > was to blame. I might go along with that, except for one thing: the
>     > Historical Date datatype works without a problem in SMW 1.0, the
>     version
>     > one step back. But when I try to include it with SMW 1.0.1, I get a
>     > problem.
>
>     Strange, then maybe you can (partially) downgrade to 1.0. My plans
>     are still
>     to make Historical Date the new Date, which is why the datatype is not
>     included yet. I will rather move its extended features over to
>     Date as soon
>     as I get down to it.
>
>     >
>     > I invite you all to visit our wiki. Actually, this one salient
>     feature
>     > appears to be the cause of a bad interaction with SMW 1.0.1:
>     namely that
>     > we store most of our images, not on the wiki itself, but on a
>     separate
>     > wiki, called the Media Pool.
>
>     It seems even stranger that this should be the problem, since it
>     seems to be
>     so unrelated to one particular datatype.
>
>     > The reason for this is that we have content
>     > in English and in seven additional languages--and serving up eight
>     > identical copies of an image would produce an upgrader's
>     nightmare and
>     > might also take up extra hard-disk space that we could put to
>     better use.
>     >
>     > Here is the text of a file named "GlobalSettings.php" that we
>     include
>     >
>     > with all the wikis that use this Media Pool:
>     > > <?php
>     > > # Shared Image POOL
>     > > $wgSharedDB = "pool";
>     > >
>     > > $wgUploadNavigationUrl =
>     'http://creationwiki.org/pool/Special:Upload';
>     > > $wgUseSharedUploads = true;
>     > > $wgSharedUploadPath = 'http://creationwiki.org/pool/images';
>     > > $wgSharedUploadDirectory =
>     > > '/var/www/vhosts/creationwiki.org/httpdocs/pool/images';
>     > > $wgHashedSharedUploadDirectory = true;
>     > >
>     > > $wgFetchCommonsDescriptions = true;
>     > > $wgSharedUploadDBname = 'jcreatio_pool';  # DB-Name of PoolWiki
>     > > $wgSharedUploadDBprefix = ''; # Table name prefix for PoolWiki
>     > > $wgRepositoryBaseUrl =
>     "http://creationwiki.org/pool/image.php/Image:";;
>     > >
>     > > ?>
>     >
>     > You can see the variables that we set, and the sort of
>     directories we
>     > set with them.
>     >
>     > The trouble seems to arise when we set an absolute directory
>     path for
>     > the variable:
>     >
>     > $wgSharedUploadDirectory
>     >
>     > This is a fairly common technique, and we have used it
>     successfully for
>     > years. That it should break now is something of a puzzle.
>
>     Just as unclear for me, especially since SMW clearly separates its
>     globals
>     with "smwg" as a prefix, so there should be no accidental name
>     clashes or the
>     like.
>
>     >
>     > If we can't figure out why SMW 1.0.1 breaks when I introduce a
>     custom
>     > nonlinear data type, then we might not be able to do any more
>     upgrades
>     > beyond 1.0.
>
>     As I said: SMW1.0 and 1.0.1 are largely compatible. Many files are
>     just not
>     changed, and the others can probably be exchanged one-by-one to
>     track down
>     the issue. Seeing your earlier contributions, I trust your
>     technical skills
>     for doing that :-)
>
>     Markus
>
>
>     --
>     Markus Krötzsch
>     Institut AIFB, Universität Karlsruhe (TH), 76128 Karlsruhe
>     phone +49 (0)721 608 7362          fax +49 (0)721 608 5998
>     [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>      
>        www  http://korrekt.org
>
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>
>
> -- 
> Sergey Chernyshev
> http://www.sergeychernyshev.com/
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