I was asked, "how can you detemine which user held a job queue"? While there is more than one approach to answering this question, here's an example that leverages the secure audit journal log.

auditing a job queue

-- To be able to audit holding of a job queue, you need to:
-- 1) Enable object auditing
-- 2) Configure object auditing for specific job queues
cl: CHGSYSVAL SYSVAL(QAUDCTL)  VALUE('*AUDLVL *OBJAUD *NOQTEMP');
cl: CHGOBJAUD OBJ(QGPL/KIDDIEJOBQ) OBJTYPE(*JOBQ) OBJAUD(*CHANGE);
stop;

--
-- T-ZC audit journal entry:
-- https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_74/rzarl/rzarlf77.htm
--
-- ZC access type codes are documented here:
-- https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_74/rzarl/rzarlf79.htm

--
-- JOBQ changes over the last 24 hours
--
select entry_timestamp as when,
       "CURRENT_USER" as user_name, job_name, job_user, job_number,
       interpret(substr(entry_data, 12, 10) as char(10)) as jobq_lib,
       interpret(substr(entry_data, 2, 10) as char(10)) as jobq_name,
       interpret(substr(entry_data, 22, 8) as char(8)) as object_type,
       case interpret(substr(entry_data, 30, 3) as decimal(5, 0))
         when  1 then 'ADD TO JOB QUEUE'         
         when  7 then 'CHANGE JOB QUEUE'         
         when 10 then 'CLEAR JOB QUEUE'         
         when 17 then 'DELETE FROM JOB QUEUE'         
         when 24 then 'HOLD JOB QUEUE'
         when 37 then 'RELEASE JOB QUEUE'
         else char(interpret(substr(entry_data, 30, 3) as decimal(5, 0)))
       end as access_type
  from table (
      qsys2.display_journal(
        'QSYS', 'QAUDJRN', 
        STARTING_RECEIVER_NAME => '*CURAVLCHN', 
        journal_entry_types => 'ZC',
        object_objtype => '*JOBQ',
        starting_timestamp => current timestamp - 24 hours)
    );
    
    
    

Nice - very useful...! 👍

Shouldn't you have the parameter STARTING_RECEIVER_NAME => '*CURCHAIN' in your statement? Without STARTING_RECEIVER_NAME only data from the last receiver switch will be shown.

Fair point, added. Thank you Christian.