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Technical issues regarding Quartz Scheduler

 
jonrand pajo
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We are facing some technical issues regarding Quartz Scheduler.

Set up :
We have 3 jboss app servers, which are load balanced and each having a quartz scheduler associated to them. These schedulers use JobStoreCMT way of storing the jobs and retrieving. We have a job say 'X'. We have a cron trigger associated with this job X to be scheduled daily at 0000 hrs.

Issue faced :
1) When this job X starts executing after sometime we see that another instance of the same job X is executing at a difference of 5 to 10 mins. 2) We have seen instances when misfire of job has occurred, still the job has started to execute as per the scheduled time.
3) At some instances we have found that when misfire occur, the scheduler returns the Trigger as SimpleTrigger rather than CronTrigger

Queries :
1) How is misfire triggered in a scheduler?
2) How do schedulers interact in a load balanced environment?
 
Rob Spoor
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Let's move this to Other Open Source Projects.
 
Martijn Verburg
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Hi Jonrand and Welcome to Javaranch. What version of Quartz are you using? Are you using the one bundled with Jboss?
 
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