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Home -> Community -> Mailing Lists -> Oracle-L -> RE: DBMS Job vs C Daemon
I also agree, cron WORKS well ! The only thing I would add to cron jobs (shell scripts) is to use a semaphore file.
e..g.
¯---------------------------------------semfile=/tmp/$0.RUNNING
if [ -f $semfile ] ; then exit ; fi
touch $semfile
DO SOME SHELL STUFF
rm $semfile
exit
¯---------------------------------------
This way no matter how frequent you run the job or how long it takes the job to run, it still works. I had a developer run a job every 5 mins but the job took 15 mins to run, so you can guess what begins to happen after a few days :-)
Gene
>>> Rajendra.Jamadagni_at_espn.com 03/15/02 08:18AM >>>
While I agree that dbms_job is the right way, we had lots of problems with
dbms_job suddenly failing (i.e. it just stops working) in 9011 and 9012
versions of database. Finally it was something to do with job queue
processes, with the help of OWS we fixed it. BUT, I still don't trust
dbms_job on our 9i production db and hence all critical jobs are run by our
close friend 'cron', it works!.
Raj
QOTD: Any clod can have facts, but having an opinion is an art!
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