```
2015-12-10 09:24:46 mw1004 metawiki exception ERROR: [c11dec9e] /rpc/RunJobs.php?wiki=metawiki&type=CentralAuthCreateLocalAccountJob&maxtime=60&maxmem=300M DBQueryError from line 1090 of /srv/mediawiki/php-1.27.0-wmf.8/includes/db/Database.php: 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: INSERT INTO `echo_notification` (notification_event,notification_user,notification_timestamp,notification_read_timestamp,notification_bundle_base,notification_bundle_hash,notification_bundle_display_hash) VALUES ('2436051','10299427','20151210092446',NULL,'1','35b61ec771e85e8dc88af5a2506502cf','4c306688bbb1d653f3876a560cbf1ed3')
Function: EchoNotificationMapper::insert
Error: 1213 Deadlock found when trying to get lock; try restarting transaction (10.64.16.22)
{"exception_id":"c11dec9e"}
[Exception DBQueryError] (/srv/mediawiki/php-1.27.0-wmf.8/includes/db/Database.php:1090) 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: INSERT INTO `echo_notification` (notification_event,notification_user,notification_timestamp,notification_read_timestamp,notification_bundle_base,notification_bundle_hash,notification_bundle_display_hash) VALUES ('2436051','10299427','20151210092446',NULL,'1','35b61ec771e85e8dc88af5a2506502cf','4c306688bbb1d653f3876a560cbf1ed3')
Function: EchoNotificationMapper::insert
Error: 1213 Deadlock found when trying to get lock; try restarting transaction (10.64.16.22)
#0 /srv/mediawiki/php-1.27.0-wmf.8/includes/db/Database.php(1047): DatabaseBase->reportQueryError(string, integer, string, string, boolean)
#1 /srv/mediawiki/php-1.27.0-wmf.8/includes/db/Database.php(1935): DatabaseBase->query(string, string)
#2 /srv/mediawiki/php-1.27.0-wmf.8/extensions/Echo/includes/mapper/NotificationMapper.php(56): DatabaseBase->insert(string, array, string)
#3 /srv/mediawiki/php-1.27.0-wmf.8/includes/db/Database.php(3310): Closure$EchoNotificationMapper::insert()
#4 /srv/mediawiki/php-1.27.0-wmf.8/includes/db/Database.php(3566): DatabaseBase->runOnTransactionIdleCallbacks()
#5 /srv/mediawiki/php-1.27.0-wmf.8/includes/db/loadbalancer/LoadBalancer.php(1050): DatabaseBase->commit(string, string)
#6 /srv/mediawiki/php-1.27.0-wmf.8/includes/db/loadbalancer/LBFactory.php(194): LoadBalancer->commitMasterChanges()
#7 /srv/mediawiki/php-1.27.0-wmf.8/includes/db/loadbalancer/LBFactoryMulti.php(394): Closure$LBFactory::forEachLBCallMethod(LoadBalancer, string, array)
#8 /srv/mediawiki/php-1.27.0-wmf.8/includes/db/loadbalancer/LBFactory.php(195): LBFactoryMulti->forEachLB(Closure$LBFactory::forEachLBCallMethod;1521762499, array)
#9 /srv/mediawiki/php-1.27.0-wmf.8/includes/db/loadbalancer/LBFactory.php(212): LBFactory->forEachLBCallMethod(string)
#10 /srv/mediawiki/php-1.27.0-wmf.8/includes/deferred/DeferredUpdates.php(152): LBFactory->commitMasterChanges()
#11 /srv/mediawiki/php-1.27.0-wmf.8/includes/deferred/DeferredUpdates.php(88): DeferredUpdates::execute(array, string)
#12 /srv/mediawiki/php-1.27.0-wmf.8/includes/jobqueue/JobRunner.php(184): DeferredUpdates::doUpdates()
#13 /srv/mediawiki/rpc/RunJobs.php(47): JobRunner->run(array)
#14 {main}
```