xf_job

Hi everyone. My website slows down and the server CPU rises.This problem started with the last update especially. The solution is recovering when we unload the xf_job table in the database. How can I fix this problem? Please help me :( This is example screen of databese.

In my code I create a new job with this code: \XF::app()->jobManager()->enqueueUnique('solvedAlerting_' . time(), 'QuestionThreads:Alerter', $jobParams); How can I stop the job by it's key programmatically? I know that all currently running jobs are stored in xf_job table. And deleding records...