Quartz Java Run Jobs in Multiple Machines

Question

I have many jobs with Quartz Schedule and I execute in my java app. (one event on my webapp active a job to run)

My webapp runs in 4 machines with two instances each, so:

how can i make sure that the same job does not run 2 times on 2 different machines?

and how i make sure tha there are no problems with persistence in the database?

Answer 1

You can configure Quartz clustering with JDBC-JobStore. Basically all your instances should share the same database, and Quartz will ensure that only one instance will run a specific job. More info can be found here