code: def clean_old_jobs():
      '''
      Called in the master's event loop every loop_interval.  Archives and/or
      deletes the events and job details from the database.
      :return:
      '''
      if __opts__.get('keep_jobs', False) and int(__opts__.get('keep_jobs', 0)) > 0:
          try:
              with _get_serv() as cur:
                  sql = 'select date_sub(now(), interval {0} hour) as stamp;'.format(__opts__['keep_jobs'])
                  cur.execute(sql)
                  rows = cur.fetchall()
                  stamp = rows[0][0]
  
              if __opts__.get('archive_jobs', False):
                  _archive_jobs(stamp)
              else:
                  _purge_jobs(stamp)
          except MySQLdb.Error as e:
              log.error('Mysql returner was unable to get timestamp for purge/archive of jobs')
              log.error(six.text_type(e))
              raise salt.exceptions.SaltRunnerError(six.text_type(e)f clean_old_jobs():
      '''
      Called in the master's event loop every loop_interval.  Archives and/or
      deletes the events and job details from the database.
      :return:
      '''
      if __opts__.get('keep_jobs', False) and int(__opts__.get('keep_jobs', 0)) > 0:
          try:
              with _get_serv() as cur:
                  sql = 'select date_sub(now(), interval {0} hour) as stamp;'.format(__opts__['keep_jobs'])
                  cur.execute(sql)
                  rows = cur.fetchall()
                  stamp = rows[0][0]
  
              if __opts__.get('archive_jobs', False):
                  _archive_jobs(stamp)
              else:
                  _purge_jobs(stamp)
          except MySQLdb.Error as e:
              log.error('Mysql returner was unable to get timestamp for purge/archive of jobs')
              log.error(six.text_type(e))
              raise salt.exceptions.SaltRunnerError(six.text_type(e))
docs: Called in the master's event loop every loop_interval.  Archives and/or
      deletes the events and job details from the database.
      :return: