https://bugzilla.wikimedia.org/show_bug.cgi?id=54045
Web browser: ---
Bug ID: 54045
Summary: Wikimedia thumbnail generator often returns HTTP 500
Internal Server Error
Product: Wikimedia
Version: wmf-deployment
Hardware: All
OS: All
Status: NEW
Severity: critical
Priority: Unprioritized
Component: Media storage
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected]
Classification: Unclassified
Mobile Platform: ---
When requesting random images from Commons' MediaWiki API and requesting a
thumbnail for it, I often get a HTTP 500.
For example:
GET
http://upload.wikimedia.org/wikipedia/commons/thumb/f/fb/USMC-05934.jpg/400px-USMC-05934.jpg
HTTP 500
<html><head><title>Error generating thumbnail</title></head>
<body>
<h1>Error generating thumbnail</h1>
<p>
Error creating thumbnail:
</p>
<!--
http://commons.wikimedia.org/w/thumb_handler.php/f/fb/USMC-05934.jpg/400px-USMC-05934.jpg
-->
<!-- mw1154 -->
</body>
</html>
Usually when trying again, it just works.
I've been getting these errors in many different environments:
* When reading articles and HiDPI plugin swaps the src attributes (the larger
version would fail maybe)
* When opening the VisualEditor (rendering the new DOM means we re-parse the
<img>tag and thus re-request it, thus making it more likely for the error to
happen again)
* When working with gadgets that render image galleries through requesting file
category members and the thumbnail url.
I don't think the scenario is relevant, there is either something wrong with
the thumbnail generator script that is triggered by lots of images. Or there is
a few faulty servers in the upload.wikimedia.org pool that cause the errors.
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