74. Task Scheduler¶
To support asynchronous task scheduling, SolarNode provides a Spring TaskScheduler service to plugins.
The Job Scheduler
For user-configurable scheduled tasks, check out the Job Scheduler service.
To make use of any of this service from a plugin using OSGi Blueprint you can declare a reference like this:
<reference id="taskScheduler" interface="org.springframework.scheduling.TaskScheduler"
filter="(function=node)"/>
74.1 Configuration¶
The Task Scheduler supports the following configuration properties in the net.solarnetwork.node.core namespace:
| Property | Default | Description |
|---|---|---|
jobScheduler.poolSize |
10 | The number of threads to maintain in the job scheduler, and thus the maximum number of jobs that can run simultaneously. Must be set to 1 or higher. |
scheduler.startupDelay |
180 | A delay in seconds after creating the job scheduler to start triggering jobs. This can be useful to give the application time to completely initialize before starting to run jobs. |
For example, to change the thread pool size to 20 and shorten the startup delay to 30 seconds, create an
/etc/solarnode/services/net.solarnetwork.node.core.cfg file with the following content:
jobScheduler.poolSize = 20
scheduler.startupDelay = 30