Oops, all your mails went directly to the spam folder. Sorry for the belated reply and thank you for your suggestions and feedback.
I should definitively give it a shot again and in case of failure together with error logging. :) Fresh wikis are painless so I guess that I know how to set up a working handler. I remember a 1.23 giving me pain with no thumbs rendered but this one was the source of a foreign file repo. So this may have been the reason. Moreover I remember other issues with file handling in that branch. Also there was a 1.27 with no thumbs rendered for the files uploaded before the switch but working for files uploaded after the switch. That's basically why I got the idea that existing thumbs will probably have to be cleared. That wiki is now on 1.29 and working cool though. Cheers Karsten Am 01.08.2017 um 20:12 schrieb Brian Wolff: > It should be fine to switch over an existing wiki, and ive done it > before. I think its more likely something else was wrong, some config > missing (if you had custom wgLocalFileRepos the config changes. If you > have custom wgForeignFileRepos things may get more complicated. Older > versions of mediawiki had an issue with wgUseInstantCommons being > incompatible with 404 rendering, but that should be fixed now) or some > weird incompatibility with something else. > > I know you wouldnt have them anymore, but mediawiki can be configured > to generate logs that can be used to debug this sort of thing, and > going directly to the thumb file in 404 rendering mode can also give > helpful error messages. > > -- > bawolff > > On Tuesday, August 1, 2017, [[kgh]] <[email protected] > <mailto:[email protected]>> wrote: > > Building up on this information: > > > > I have once tried to switch from "regular thumb handling" to "404 thumb > > handling" on an existing wiki and found that this does not work since as > > a result no thumbs were rendered at all. Starting with "404 thumb > > handling" on a fresh wiki however works fine. I have not dug into this > > more but may it be that all existing thumbs have to be deleted to clear > > the way for the new handling mode when switching the mode on wiki > > already in use? > > > > Cheers Karsten > > > > > > Am 31.07.2017 um 15:52 schrieb Brian Wolff: > >> Thumbnails will generally not be deleted except if an image is deleted, > >> overwritten with another file or purged (ie appending ?action=purge > to the > >> file description page) > >> > >> -- > >> bawolff > >> > >> On Monday, July 31, 2017, Krabina Bernhard <[email protected] > <mailto:[email protected]>> wrote: > >>> Dear all, > >>> > >>> thank you for your help, it is much appreciated. > >>> > >>> An additional question regarding thumbnailing: do thumbs ever get > deleted > >> by MediaWiki? > >>> They probably get deleted once the image gets deleted. But other than > >> that, do all generated thumbnails exist as long as the image exists? > >>> cheers, > >>> Bernhard > >>> > >>> > >>> ----- Am 29. Jul 2017 um 2:22 schrieb Brian Wolff > [email protected] <mailto:[email protected]>: > >>> > >>>> Hi, > >>>> > >>>> MediaWiki will by default only create image thumbs for needed > sizes at > >>>> time the size is used on a page. So for example when you add an image > >>>> to a page, MW will create the thumbnail sizes needed to display an > >>>> article. However, if the image is uploaded but never added to a > normal > >>>> page, then thumbnails for the image won't be generated (except for > >>>> those needed on image description page, which are different sizes) > >>>> > >>>> There is a second mode mediawiki can operate in, where images are > >>>> rendered on demand when someone views the image (so-called "404 thumb > >>>> handling"). Wikimedia wikis use this mode. In this mode, thumbs are > >>>> created on first view. Additionally in this mode, $wgImageLimits > >>>> creates additional links on the image description page. This mode is > >>>> generally more efficient (especially on page saves), and also more > >>>> reliable in the event that there is a missing thumb. > >>>> > >>>> For information to set up 404-thumb rendering see > >>>> https://www.mediawiki.org/wiki/Manual:Thumb.php > >>>> > >>>> -- > >>>> Brian > >>>> > >>>> On Fri, Jul 28, 2017 at 9:18 AM, Krabina Bernhard > <[email protected] <mailto:[email protected]>> > >> wrote: > >>>>> Dear MediaWiki experts, > >>>>> > >>>>> I cannot really figure out the behaviour of MediaWiki regarding > >> thumbnailing. > >>>>> What I want to achieve is that my MediaWiki installation produces > >> thumbnails in > >>>>> a specified size. > >>>>> > >>>>> What I did after reading through several help pages is this: > >>>>> --------------------------- > >>>>> # Images und Thumbnails > >>>>> $wgThumbLimits = array( 80, 250, 390 ); > >>>>> $wgDefaultUserOptions['thumbsize'] = 1; // thumb size 250 > >>>>> > >>>>> $wgImageLimits = array( array( 80, 90 ), array( 800, 600 ), array( > >> 1280, 1024 ) > >>>>> ); > >>>>> $wgDefaultUserOptions['imagesize'] = 2; // image size 800, 600 > >>>>> --------------------------- > >>>>> > >>>>> In my opinion this should guarantee that for every image uploaded, > >> there is an > >>>>> 80, 250 and 390px sized thumbnail. In many cases this is true, but > >> there are > >>>>> some cases were I can find a 100px thumbnail, but no 80px thumbnail. > >>>>> > >>>>> If I understand it correctly, this can perfectly be the case if any > >> user sets > >>>>> his/her preference to 100px. I don't mind so much extra sizes to be > >> produced, > >>>>> but I want to make sure that a 80px thumbnail is there. > >>>>> > >>>>> Maybe in the cases where it is not present the images were uploaded > >> before the > >>>>> above mentioned setting was made? But how can I get the wiki to redo > >> thumbnails > >>>>> in my desired size? > >>>>> > >>>>> cheers, > >>>>> Bernhard > >>>>> > >>>>> _______________________________________________ > >>>>> MediaWiki-l mailing list > >>>>> To unsubscribe, go to: > >>>>> https://lists.wikimedia.org/mailman/listinfo/mediawiki-l > >>>> _______________________________________________ > >>>> MediaWiki-l mailing list > >>>> To unsubscribe, go to: > >>>> https://lists.wikimedia.org/mailman/listinfo/mediawiki-l > >>> _______________________________________________ > >>> MediaWiki-l mailing list > >>> To unsubscribe, go to: > >>> https://lists.wikimedia.org/mailman/listinfo/mediawiki-l > >>> > >> _______________________________________________ > >> MediaWiki-l mailing list > >> To unsubscribe, go to: > >> https://lists.wikimedia.org/mailman/listinfo/mediawiki-l > > > > > > _______________________________________________ > > MediaWiki-l mailing list > > To unsubscribe, go to: > > https://lists.wikimedia.org/mailman/listinfo/mediawiki-l > > _______________________________________________ MediaWiki-l mailing list To unsubscribe, go to: https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
