[Wiki Loves Monuments] Thumbnails not appearing when uploading

Erik Moeller erik at wikimedia.org
Tue Sep 11 05:24:42 UTC 2012

On Mon, Sep 10, 2012 at 7:29 PM, Racso <racso at colombia.com> wrote:
> I'm having some trouble when uploading multiple photos at the same time, as
> the photos thumbnails aren't appearing after the upload. That forces me to
> fill the pictures data (IDs, names, etc.) without seeing the corresponding
> images, which is difficult if pictures for multiple monuments were uploaded.
> Is this normal? Someone else has had this problem?

No, it's not normal; it's a bug with thumbnail generation on the
cluster. See https://bugzilla.wikimedia.org/show_bug.cgi?id=39975 if
you're interested in the technical details.

The gist is this: This bug appears if you're using a browser that
doesn't support client-side thumbnail generation (e.g. IE) or if
you're uploading a batch that's greater than 10MB in total size.

We're investigating. WMF is having its all-staff meetings this week
but Wednesday is a hack day, so I'm hoping we can carve out some time
to look into this then.

Erik Möller
VP of Engineering and Product Development, Wikimedia Foundation

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