Jobs take sub-second to execute. There is an alarm whenever/if jobs were to take more than 3 std dev. The alarm works. There is about 50 jobs per second. The job_queue table has 4 columns, client_submission_id, status, timestamp and the job_id. Primary key is client_submission_id. there is a key (job_id) to quickly retrieve the updated row. There is about 150,000 jobs in the table - oldest, completed jobs are purged periodically.
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