https://bugzilla.wikimedia.org/show_bug.cgi?id=65217
Bug ID: 65217
Summary: Operational issues for very large TIFFs
Product: MediaWiki extensions
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: critical
Priority: Unprioritized
Component: GWToolset
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected]
Web browser: ---
Mobile Platform: ---
when a bot or user visits a wiki’s SpecialNewFiles page, and some other pages
like this page, missing thumbnails are created on the fly. this can potentially
flood the server(s) with thumbnail creation jobs, which slow down the wiki or
potentially bring down its ability to server web pages. GWToolset has the
potential to create this situation when it uploads several large mediafiles at
once @see http://lists.wikimedia.org/pipermail/glamtools/2014-May/000135.html.
during the zürich hackathon i spoke with aaron schultz, faiden liambotis, and
brion vibber regarding approaches to dealing with this issue. in summary, the
idea aaron came up with is to create initial thumbnails on download of the
original mediafile to the wiki. this should block the appearance of the title
on the new files page and anywhere else until the thumbnails and title
creation/edit have completed. aaron thought, and faidon and i agree, that
further throttling of gwtoolset will not help resolve the issue.
i am currently looking into implementing this approach and will use this bug to
track activity on it.
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