<?xml version="1.0"?> <api> <error code="internal_api_error_DBQueryError" info="Exception Caught: A database error has occurred. Did you forget to run maintenance/update.php after upgrading? See: https://www.mediawiki.org/wiki/Manual:Upgrading#Run_the_update_script Query: SELECT rev_id,rev_page,rev_text_id,rev_timestamp,rev_comment,rev_user_text,rev_user,rev_minor_edit,rev_deleted,rev_len,rev_parent_id,rev_sha1,rev_content_format,rev_content_model,user_name,page_namespace,page_title,page_is_new,page_latest,page_is_redirect,page_len,(SELECT GROUP_CONCAT(ct_tag SEPARATOR ',') FROM `change_tag` WHERE ct_rev_id=rev_id ) AS ts_tags FROM `revision` FORCE INDEX (user_timestamp) INNER JOIN `page` ON ((page_id = rev_page)) LEFT JOIN `user` ON ((rev_user != 0) AND (user_id = rev_user)) WHERE rev_user = '108715' AND ((rev_deleted & 4) = 0) ORDER BY rev_timestamp DESC LIMIT 51 Function: IndexPager::buildQueryInfo (contributions page unfiltered) Error: 1213 Deadlock found when trying to get lock; try restarting transaction (127.0.0.1) " xml:space="preserve"> #0 /x1/mediawiki-1.23.13/includes/db/Database.php(1123): DatabaseBase->reportQueryError() #1 /x1/mediawiki-1.23.13/includes/db/Database.php(1590): DatabaseBase->query() #2 /x1/mediawiki-1.23.13/includes/specials/SpecialContributions.php(742): DatabaseBase->select() #3 /x1/mediawiki-1.23.13/includes/Pager.php(223): ContribsPager->reallyDoQuery() #4 /x1/mediawiki-1.23.13/includes/Pager.php(553): IndexPager->doQuery() #5 /x1/mediawiki-1.23.13/includes/api/ApiFeedContributions.php(90): IndexPager->getNumRows() #6 /x1/mediawiki-1.23.13/includes/api/ApiMain.php(913): ApiFeedContributions->execute() #7 /x1/mediawiki-1.23.13/includes/api/ApiMain.php(363): ApiMain->executeAction() #8 /x1/mediawiki-1.23.13/includes/api/ApiMain.php(334): ApiMain->executeActionWithErrorHandling() #9 /x1/mediawiki-1.23.13/api.php(85): ApiMain->execute() #10 {main} </error> </api>