Seen in /var/log/mediawiki/mediawiki_job_pagetriage_cleanup_en/syslog.log beginning on March 2 (I checked eqiad and no error was logged there):
Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: Started processing... Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: cleanReviewedPagesAndUnusedNamespaces()... Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: InvalidArgumentException from line 234 of /srv/mediawiki/php-1.40.0-wmf.25/includes/libs/rdbms/platform/SQLPlatform.php: Wikimedia\Rdbms\Platform\SQLPlatform::makeList: empty input for field page_namespace Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: #0 /srv/mediawiki/php-1.40.0-wmf.25/includes/libs/rdbms/database/Database.php(3635): Wikimedia\Rdbms\Platform\SQLPlatform->makeList(Array, 4) Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: #1 /srv/mediawiki/php-1.40.0-wmf.25/includes/libs/rdbms/database/DBConnRef.php(119): Wikimedia\Rdbms\Database->makeList(Array, 4) Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: #2 /srv/mediawiki/php-1.40.0-wmf.25/includes/libs/rdbms/database/DBConnRef.php(414): Wikimedia\Rdbms\DBConnRef->__call('makeList', Array) Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: #3 /srv/mediawiki/php-1.40.0-wmf.25/extensions/PageTriage/includes/Maintenance/RemoveOldRows.php(85): Wikimedia\Rdbms\DBConnRef->makeList(Array, 4) Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: #4 /srv/mediawiki/php-1.40.0-wmf.25/extensions/PageTriage/includes/Maintenance/RemoveOldRows.php(42): MediaWiki\Extension\PageTriage\Maintenance\RemoveOldRows->cleanReviewedPagesAndUnusedNamespaces() Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: #5 /srv/mediawiki/php-1.40.0-wmf.25/maintenance/includes/MaintenanceRunner.php(609): MediaWiki\Extension\PageTriage\Maintenance\RemoveOldRows->execute() Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: #6 /srv/mediawiki/php-1.40.0-wmf.25/maintenance/doMaintenance.php(99): MediaWiki\Maintenance\MaintenanceRunner->run() Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: #7 /srv/mediawiki/php-1.40.0-wmf.25/extensions/PageTriage/cron/updatePageTriageQueue.php(18): require_once('/srv/mediawiki/...') Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: #8 /srv/mediawiki/multiversion/MWScript.php(118): require_once('/srv/mediawiki/...') Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: #9 {main} Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: Traceback (most recent call last): Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: File "/usr/local/bin/mw-cli-wrapper", line 57, in <module> Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: subprocess.run(cmd, check=True, shell=True) Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: File "/usr/lib/python3.7/subprocess.py", line 487, in run Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: output=stdout, stderr=stderr) Mar 6 20:55:00 mwmaint2002 mediawiki_job_pagetriage_cleanup_en[5036]: subprocess.CalledProcessError: Command '/usr/local/bin/mwscript extensions/PageTriage/cron/updatePageTriageQueue.php enwiki' returned non-zero exit status 1.