Oc4j scheduled jobs management

Question

We have an application deployed under oc4j server and that launches scheduled jobs.
When we restart the oc4j server, old jobs are relaunched automatically which generate exception. Is this behavior logical? How we can remove these jobs.
Thanks for collaboration

Answer 1

Hi,
Some diagnostic things to check
- are there any crashes reported in the alert.log ?
- are any jobs running
select * from dba_scheduler_running_jobs;
- is the job coordinator running
on UNIX
ps aux |grep cjq
select program from v$session; -- look for CJQ
- are job slaves running
on UNIX
ps aux |grep j0
select program from v$session; -- look for J0*
- on UNIX what process is consuming the CPU (check output of top and then grep the output of "ps aux" for the process ID)
- what is MAX_JOB_SLAVE_PROCESSES set to ?
select * from all_scheduler_global_attribute where ATTRIBUTE_NAME='MAX_JOB_SLAVE_PROCESSES';
- what is job_queue_processes set to ?
select value from v$parameter where lower(name)='job_queue_processes';
- what is the status of all enabled jobs
select job_name, state, next_run_date, last_start_date from dba_scheduler_jobs
where state!='DISABLED';
If scheduled jobs are not running and there are no jobs running, there is really nothing to "reset", it's just a matter of figuring out why jobs are not running. If you provide answers to the questions above, it should become clearer what is happening.
One thing you can try is disabling all jobs and reenabling them one by one to see if they run.
The purge_log job running more than a day is extremely unusual, but it shouldn't step on itself as it will just skip the next run if it is already running.
Hope this helps,
Ravi.