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How to distribute Java long running process to remote servers

My php web server receive requests and needs to launch a java program that runs between 30 sec and 5 minutes or even more. That long process needs to be distributed on the available servers in my LAN.

What i need:

  • a job queue ( that's done in a db)

  • A DB watch. Get notified of new or completed job (to start another job in the queue)

  • Start a java process on a remote and available compute开发者_如何学Cr.

It seems that it needs to be a DB watch since I need to evaluate which remote computer is available and a DB stored procedure wouldn't accomplish that easily.

What is the best or at least a good way to achieve this in a OS independant way using JAVA.

I guess I could use a FileWatch and manage the queue in a folder but it seems prehistoric.

Thanks


I would use a JMS queue. You add tasks/messages to a queue and the next available process takes a task, performs it and sends back any result on another queue or topic. This supports transparent load balancing and you can restart tasks if a process fails. No polling is required.

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