With two co-workers from Zühlke, I wrote an article about an scalable Java EE scheduler. This article got published in the JavaSpektrum magazin 04/2009.
 
It’s written in German and can be downloaded here.

 

 

 

 

1. If there is an english version of it available, please send it across.

   Comment by Sumanth — 3.9.2009 @ 18:08

2. Unfortunately, there isn’t a English version available.

   But if you look at the picture at the first page, you see the whole principle. There is a job queue, where all applications can register new jobs (with a timestamp, an identification and a “worker queue”). The job gets stored and an EJB polls this table. If a job is expired, it send it to its “worker queue”. The MDB at this queue is able to read the identification and can perform a task for it. That’s it

   The second part covers the ability for a failover in a cluster environment.

   Comment by Stefan Jäger — 3.9.2009 @ 20:27

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