Has your file extension array been reset. Make sure the full array includes
all needed file extensions. Be sure hi run update.php.

John Foster

On Aug 10, 2016 3:08 PM, "Jingyi C. Shi" <[email protected]> wrote:

> Hi Greg,
> Thank you for your response! I tried the suggestions, but still facing same
> problems. Were there any further suggestions?
>
> I already changed the owner to be www-data, set log files and rebuilt
> images.
>
> I got debug logs like follows:
> "...
> FSFileBackend::getFileListInternal() given directory does not exist:
> '/var/www/HIWeb/dir/wiki/images/3/3e'
> FSFileBackend::getFileListInternal() given directory does not exist:
> '/var/www/HIWeb/dir/wiki/images/3/3f'
> FSFileBackend::getFileListInternal() given directory does not exist:
> '/var/www/HIWeb/dir/wiki/images/4/40'
> FSFileBackend::getFileListInternal() given directory does not exist:
> '/var/www/HIWeb/dir/wiki/images/4/41'
> FSFileBackend::getFileListInternal() given directory does not exist:
> '/var/www/HIWeb/dir/wiki/images/4/42'
> ..."
>
> I think the log is reasonable and tell no more issues.
>
> Btw, what the "preview" means in the last post was: when you open a
> "File:xxxx.png" page, it should show a preview image directly on the page.
> But I have no preview images and thumbnails currently.
>
> Thanks,
> Jingyi
>
> ---------- My original question ----------
>
> Hi all,
>
> Thanks to some help about my previous thumbnails question: "I uploaded a
> png image but no thumbnails created in the File page."
>
> I have tried several methods but the thumbnails are still not working. I
> still face the problems that I have neither thumbnails or preview images in
> 'File:' pages.
>
> I have already installed ImageMagick in my Ubuntu.
> What I have tried was to:
> 1. check wiki/images/thumb/ folder, but only old thumbnails are there.
> (Yes, I used to have thumbnails several month ago.) No new ones that I
> uploaded recently are there.
> 2. chowe -R root:root wiki/images/  and  chmod -R 777 /wiki/images/
> 2. change memory consumption by increasing $wgMaxShellMemory to 409600 in
> LocalSetting.php, but still no thumbnails appears.
>
> So here are my new questions:
> 1. Small images (like 500kb) can sometimes have previews (but no
> thumbnails). But large images always no previews. How to fix?
> 2. I have a strange finding. Some jpg images can show the previews in my
> home computer but cannot show previews in my office computer. What may
> cause that?
> 3. My current MW version is 1.26. And my PHP version is a little bit out of
> date: 5.3.10. May this cause a problem related to previews and thumbnails?
>
>
> Looking forward to your further help.
>
> Thank you,
> Jingyi
>
> ---------- Forwarded message ----------
>
> Message: 1
> Date: Wed, 3 Aug 2016 09:20:40 -0400
> From: "Greg Rundlett (freephile)" <[email protected]>
> To: MediaWiki announcements and site admin list
>         <[email protected]>
> Subject: Re: [MediaWiki-l] still questions about thumbnails and
>         previews
> Message-ID:
>         <CANaytccrq72TEP9FpQb-mTHoZKhn37WB8F5S0e-NsMOZNj_
> [email protected]>
> Content-Type: text/plain; charset=UTF-8
>
> Greg Rundlett
> https://eQuality-Tech.com
> https://freephile.org
>
> On Tue, Aug 2, 2016 at 10:49 PM, Jingyi C. Shi <[email protected]>
> wrote:
>
> > Hi all,
> >
> > Thanks to some help about my previous thumbnails question: "I uploaded a
> > png image but no thumbnails created in the File page."
> >
> > I have tried several methods but the thumbnails are still not working. I
> > still face the problems that I have neither thumbnails or preview images
> in
> > 'File:' pages.
> >
> > I have already installed ImageMagick in my Ubuntu.
> > What I have tried was to:
> > 1. check wiki/images/thumb/ folder, but only old thumbnails are there.
> > (Yes, I used to have thumbnails several month ago.) No new ones that I
> > uploaded recently are there.
> > 2. chowe -R root:root wiki/images/  and  chmod -R 777 /wiki/images/
> >
>
> Actually, the images directory (and subdirectories) should be owned by the
> web server user (that's *www-data* for Ubuntu)
>
> If you enter the command
>
> ps aux | egrep '(apache|httpd)'
>
> and look at the first column, you'll be able to confirm that your webserver
> is running as www-data
>
> Then you can change ownership on the directory and subdirectories like so:
>
> sudo chown -R www-data:www-data ./wiki/images
>
>
> In general, you should setup a debug log file[1] to find out what's going
> wrong with MediaWiki.
>
> [1]
> https://www.mediawiki.org/wiki/Manual:How_to_debug#
> Setting_up_a_debug_log_file
>
>
>
> > 2. change memory consumption by increasing $wgMaxShellMemory to 409600 in
> > LocalSetting.php, but still no thumbnails appears.
> >
> > So here are my new questions:
> > 1. Small images (like 500kb) can sometimes have previews (but no
> > thumbnails). But large images always no previews. How to fix?
> > 2. I have a strange finding. Some jpg images can show the previews in my
> > home computer but cannot show previews in my office computer. What may
> > cause that?
> > 3. My current MW version is 1.26. And my PHP version is a little bit out
> of
> > date: 5.3.10. May this cause a problem related to previews and
> thumbnails?
> >
> >
> I'm not sure what you mean by 'previews'.  When you upload a file into
> MediaWiki via Special:Upload, it simply stores the file on the webserver
> and generates thumbnails as configured.  Those thumbnails get stored in the
> "thumbs" directory on the server. When you go to *Special:ListFiles* (e.g.
> https://freephile.org/wiki/Special:ListFiles), it will show a list of
> uploaded files, with a thumbnail representation of each file.
>
> Since you are having problems with your file uploads and thumbnail
> generation, you should probably run the 'rebuildImages' script in the
> maintenance folder.
>
> cd wiki/maintenance
> php ./rebuildImages --dry-run
> php ./rebuildImages --missing
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