https://bugzilla.wikimedia.org/show_bug.cgi?id=68989
Bug ID: 68989
Summary: Large generator results in XML give error instead of
truncating
Product: MediaWiki
Version: 1.22.2
Hardware: All
OS: All
Status: NEW
Severity: trivial
Priority: Unprioritized
Component: API
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected]
Web browser: ---
Mobile Platform: ---
Generator results that are in excess of $wgAPIMaxResultSize will cause an error
in XML rather than truncating. This seems to be occuring when the Page elements
themselves cause the result size to be in excess of the maximum.
For example, setting $wgAPIMaxResultSize to some arbitrarily low value for
demonstration, like 100,000, and doing a standard generator=allpages query,
instead of results, you get:
<error code="internal_api_error_MWException" info="Exception Caught: Internal
error in ApiFormatXml::recXmlPrint: (pages, ...) has integer keys without
_element value. Use ApiResult::setIndexedTagName()." xml:space="preserve">
Interestingly, this occurs regardless of what properties you request, and only
occurs with gaplimits over a certain value, regardless of the actual result
size (though the gaplimit required to cause the error increases as the max
result size does). Both XML and JSON will happily return result sets well above
the designated result size (which could be considered another bug), but JSON
always seems to return results successfully, where XML fails beyond a certain
gaplimit.
Since this becomes nearly impossible to replicate with more normal values of
$wgAPIMaxResultSize, I'm marking it as trivial.
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