The following happened when someone ran initImageData from PageImages:
Database::query: lost connection to 10.64.32.136; reconnected:
#0 /srv/mediawiki/php-1.29.0-wmf.5/includes/libs/rdbms/database/Database.php(1254): Database->query('SELECT page_id...', 'InitImageData::...')
#1 /srv/mediawiki/php-1.29.0-wmf.5/extensions/PageImages/maintenance/initImageData.php(67): Database->select(Array, Array, Array, 'InitImageData::...', Array, Array)
#2 /srv/mediawiki/php-1.29.0-wmf.5/maintenance/doMaintenance.php(111): InitImageData->execute()
#3 /srv/mediawiki/php-1.29.0-wmf.5/extensions/PageImages/maintenance/initImageData.php(107): require_once('/srv/mediawiki/...')
#4 /srv/mediawiki/multiversion/MWScript.php(97): require_once('/srv/mediawiki/...')
#5 {main}The stacktrace itself isn't so scary to me, although maybe queries could use a double check. It's the fact that we're currently running wmf.11 and wmf.10 in production (wmf.10 for simplewiki at time of filing this) but we somehow are loading code from wmf.5!! How is this possible?
Happened twice, both to simplewiki, at 2017-02-08T21:34:04 and 2017-02-08T18:52:09