https://bugzilla.wikimedia.org/show_bug.cgi?id=47618
Web browser: ---
Bug ID: 47618
Summary: DjVu files are prone to causing OOMs
Product: MediaWiki
Version: unspecified
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: Unprioritized
Component: DjVu
Assignee: [email protected]
Reporter: [email protected]
Classification: Unclassified
Mobile Platform: ---
DjVu files sometimes have massive metadata that OOMs apaches when doing
relatively mundane things. There are hacks to avoid caching this large info in
RepoGroup, but problems still persist. For example, one category is unviewable:
Server: mw1170
Method: GET
URL: http://commons.wikimedia.org/wiki/Category:1877_books
Cookie: wikiEditor-0-booklet-Edittools-page=Edittools1;
centralnotice_bucket=0-4.2
Backtrace:
#0
/usr/local/apache/common-local/php-1.22wmf2/includes/db/DatabaseMysql.php(205):
mysql_fetch_object(Resource id #146)
#1 /usr/local/apache/common-local/php-1.22wmf2/includes/db/Database.php(1546):
DatabaseMysql->fetchObject(Object(ResultWrapper))
#2
/usr/local/apache/common-local/php-1.22wmf2/includes/filerepo/file/LocalFile.php(372):
DatabaseBase->selectRow('image', Array, Array, 'LocalFile::load...')
#3
/usr/local/apache/common-local/php-1.22wmf2/includes/filerepo/file/LocalFile.php(471):
LocalFile->loadExtraFromDB()
#4
/usr/local/apache/common-local/php-1.22wmf2/includes/filerepo/file/LocalFile.php(666):
LocalFile->load(1)
#5 /usr/local/apache/common-local/php-1.22wmf2/includes/media/DjVu.php(236):
LocalFile->getMetadata()
#6 /usr/local/apache/common-local/php-1.22wmf2/includes/media/DjVu.php(309):
DjVuHandler->getMetaTree(Object(LocalFile))
#7
/usr/local/apache/common-local/php-1.22wmf2/includes/filerepo/file/LocalFile.php(613):
DjVuHandler->getPageDimensions(Object(LocalFile), 1)
#8
/usr/local/apache/common-local/php-1.22wmf2/includes/media/ImageHandler.php(36):
LocalFile->getWidth()
#9
/usr/local/apache/common-local/php-1.22wmf2/includes/filerepo/file/File.php(590):
ImageHandler->canRender(Object(LocalFile))
#10
/usr/local/apache/common-local/php-1.22wmf2/includes/filerepo/file/File.php(865):
File->canRender()
#11 /usr/local/apache/common-local/php-1.22wmf2/includes/ImageGallery.php(300):
File->transform(Array)
#12
/usr/local/apache/common-local/php-1.22wmf2/includes/CategoryViewer.php(430):
ImageGallery->toHTML()
#13
/usr/local/apache/common-local/php-1.22wmf2/includes/CategoryViewer.php(109):
CategoryViewer->getImageSection()
#14 /usr/local/apache/common-local/php-1.22wmf2/includes/CategoryPage.php(110):
CategoryViewer->getHTML()
#15 /usr/local/apache/common-local/php-1.22wmf2/includes/CategoryPage.php(76):
CategoryPage->closeShowCategory()
#16
/usr/local/apache/common-local/php-1.22wmf2/includes/actions/ViewAction.php(44):
CategoryPage->view()
#17 /usr/local/apache/common-local/php-1.22wmf2/includes/Wiki.php(439):
ViewAction->show()
#18 /usr/local/apache/common-local/php-1.22wmf2/includes/Wiki.php(305):
MediaWiki->performAction(Object(CategoryTreeCategoryPage), Object(Title))
#19 /usr/local/apache/common-local/php-1.22wmf2/includes/Wiki.php(565):
MediaWiki->performRequest()
#20 /usr/local/apache/common-local/php-1.22wmf2/includes/Wiki.php(458):
MediaWiki->main()
#21 /usr/local/apache/common-local/php-1.22wmf2/index.php(59): MediaWiki->run()
#22 /usr/local/apache/common-local/w/index.php(3):
require('/usr/local/apac...')
#23 {main}
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