Well I havent use the Scheduler in 3.2x but I have been heavisly using home grown job sceduler based on jboss scheduler mbean for Jboss 3.0.x. Basically I modified the jboss scheduler mbean to write a timer tick to a queue. I have a Schedule processor mdb which listen to this queue and executes all my scheduling logic. My job processords are also MDBs -- the Schedule processor mdb sends them a message to process based on the scehduled time. Arguably , this is not the simplest solution but it allows to do all things you want from your schduer system on your own.
Hope this helps.
regards -manish
From: Magesh Prabhu <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] To: <[EMAIL PROTECTED]> Subject: [JBoss-user] Scheduler Question Date: 23 Jul 2003 12:27:18 +0100
Hi Guys,
My application heavily depends on job Scheduling and relies on the notification by the Scheduler. I tried using Quartz Scheduler and ran in to deadlock issues. I'm investigating on the dead-lock issues and I found Quartz Scheduler is the reason for this deadlock.
I looked in to the TimerMBean jboss is providing and trying to find more on it wheter it will suit my needs.
My need is very simple:
I want schedule a job to start after n minutes and when I schedule I will pass few Arguments to the Scheduler. When the scheduler notifies me back, I must be able to get back my arguments.
My Questions are:
1) Will the Scheduler service in JBoss be able to satisfy my requirement.
2) What will happen if I schedule a job for 10 minutes... shutdown the jboss and start it after 20 minutes. Will jboss still remind me of the misfiring (I would expect it to remind me).
3) Are the jobs configurable to be persisted in database like JMS messages.
Please provide me if there are any links which provide info. on the Scheduler
Environment : JBoss3.2.1 on Oracle 8.1.6, Jdk 1.4.1_01
Thanks in advance, Magesh
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