Question: Multiple Schedulers in Spring Boot

[alabotski]

I add dependency

<dependency>
    <groupId>com.github.kagkarlsson</groupId>
    <artifactId>db-scheduler-spring-boot-starter</artifactId>
    <version>15.1.1</version>
</dependency>

It already has a ready-made Scheduler

Please tell me how to set up several Schedulers for different tasks of my project?
Maybe the db-scheduler-spring-boot-starter dependency is not needed in this case? And pure db-scheduler should be used?

PS Sorry for English, I'm not native speaker

[geirsagberg]

The Spring Boot starter will add one singleton scheduler bean, yes.

You can follow the examples in the Readme to set up mutiple schedulers manually:

RecurringTask<Void> hourlyTask = Tasks.recurring("my-hourly-task", FixedDelay.ofHours(1))
        .execute((inst, ctx) -> {
            System.out.println("Executed!");
        });

final Scheduler scheduler = Scheduler
        .create(dataSource)
        .startTasks(hourlyTask)
        .threads(5)
        .build();

// hourlyTask is automatically scheduled on startup if not already started (i.e. exists in the db)
scheduler.start();

Note that you will need a separate data source per scheduler, or configure it with separate table names.

[geirsagberg]

What is your use case btw? I made an issue and PR for separate pools for high priority tasks, could be of interest perhaps? #704