Having some type of cron issue which is giving loads of the same report

Question

It's very generic and I'm not really sure how to go about debugging this one. I probably get about 50 reports per day and it's all the same thing.

a:3:{i:0;s:0:"";i:1;s:1210:"#0 /var/www/new/releases/20170801161140/app/code/core/Mage/Core/Model/App.php(848): Mage_Core_Model_App->throwStoreException()
#1 /var/www/new/releases/20170801161140/app/Mage.php(353): Mage_Core_Model_App->getStore(NULL)
#2 /var/www/new/releases/20170801161140/app/code/core/Mage/Cron/Model/Observer.php(281): Mage::getStoreConfig('system/cron/sch...')
#3 /var/www/new/releases/20170801161140/app/code/core/Mage/Cron/Model/Observer.php(72): Mage_Cron_Model_Observer->_processJob(Object(Mage_Cron_Model_Schedule), Object(Mage_Core_Model_Config_Element))
#4 /var/www/new/releases/20170801161140/app/code/core/Mage/Core/Model/App.php(1358): Mage_Cron_Model_Observer->dispatch(Object(Varien_Event_Observer))
#5 /var/www/new/releases/20170801161140/app/code/core/Mage/Core/Model/App.php(1337): Mage_Core_Model_App->_callObserverMethod(Object(Mage_Cron_Model_Observer), 'dispatch', Object(Varien_Event_Observer))
#6 /var/www/new/releases/20170801161140/app/Mage.php(448): Mage_Core_Model_App->dispatchEvent('default', Array)
#7 /var/www/new/releases/20170801161140/cron.php(78): Mage::dispatchEvent('default')
#8 {main}";s:11:"script_name";s:58:"/var/www/new/releases/20170801161140/index.php";}

Usually if i saw anything that was a third party module or in the community or local folder I would look at that to be the suspected issue.

*******updated*********

root@vm-prod-web1:/var/www/new/current/var/report# cat 1085673477531 
a:3:{i:0;s:0:"";i:1;s:1526:"#0 /var/www/new/releases/20170801205835/app/code/core/Mage/Core/Model/App.php(848): Mage_Core_Model_App->throwStoreException()
#1 /var/www/new/releases/20170801205835/app/Mage.php(353): Mage_Core_Model_App->getStore(NULL)
#2 /var/www/new/releases/20170801205835/app/code/community/Aoe/Scheduler/Helper/Data.php(281): Mage::getStoreConfig('system/cron/err...')
#3 /var/www/new/releases/20170801205835/app/code/community/Aoe/Scheduler/Model/Schedule.php(260): Aoe_Scheduler_Helper_Data->sendErrorMail(Object(Aoe_Scheduler_Model_Schedule), 'exception 'Mage...')
#4 /var/www/new/releases/20170801205835/app/code/community/Aoe/Scheduler/Model/Schedule.php(605): Aoe_Scheduler_Model_Schedule->runNow(true)
#5 /var/www/new/releases/20170801205835/app/code/community/Aoe/Scheduler/Model/Observer.php(39): Aoe_Scheduler_Model_Schedule->process()
#6 /var/www/new/releases/20170801205835/app/code/core/Mage/Core/Model/App.php(1358): Aoe_Scheduler_Model_Observer->dispatch(Object(Varien_Event_Observer))
#7 /var/www/new/releases/20170801205835/app/code/core/Mage/Core/Model/App.php(1337): Mage_Core_Model_App->_callObserverMethod(Object(Aoe_Scheduler_Model_Observer), 'dispatch', Object(Varien_Event_Observer))
#8 /var/www/new/releases/20170801205835/app/Mage.php(448): Mage_Core_Model_App->dispatchEvent('default', Array)
#9 /var/www/new/releases/20170801205835/cron.php(78): Mage::dispatchEvent('default')
#10 {main}";s:11:"script_name";s:58:"/var/www/new/releases/20170801205835/index.php";}

Answer 1

Mage::getStoreConfig('system/cron/sch...') return null value for crontab. That means one of your module run in crontab but storeid is not passing as null.

How to find the module?

Install AOE_scheduler. check log which module load that time. check in Magento admin setting or modulename/etc/config.xml file store_id is passed.