https://bugzilla.wikimedia.org/show_bug.cgi?id=30961

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             Bug #: 30961
           Summary: Run refreshImageMetadata.php on wmf wikis sometime
                    after 1.18 deploy
           Product: Wikimedia
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: Unprioritized
         Component: Site requests
        AssignedTo: [email protected]
        ReportedBy: [email protected]
            Blocks: 29876
    Classification: Unclassified


1.18 added a lot of new image metadata properties (Exif and friends) that are
now extracted that weren't previously. Please run refreshImageMetadata.php
after the 1.18 deployment, which will go through every image and re-extract all
the metadata.


Also, the script outputs the name of any image that had a larger img_metadata
field before the refresh relative to after it. This could indicate a bug in new
img_metadata stuff since almost all of the old properties are still extracted,
so the img_metadata field should either stay the same or increase in size.
(There is one exception to this, but it should be very rare). It'd be great if
stdout of that script could be redirected to a file and posted somewhere, so I
could investigate any cases of the metadata decreasing in size.

Cheers.

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