Setup Quartz on Heroku
There are two ways to use Quartz on Heroku:
1. Setup your own Quartz on Heroku
2. Use Heroku Quartz Addon
1. Setup your own Quartz on Heroku
Create Postgres db:
heroku addons:add heroku-postgresql:dev
Get Postgres properties:
heroku config
Use these properties to specify your:
- org.quartz.dataSource.dataSource.URL
- org.quartz.dataSource.dataSource.user
- org.quartz.dataSource.dataSource.password
Your quartz.properties file
org.quartz.scheduler.instanceName = BatchScheduler org.quartz.threadPool.threadCount = 3 org.quartz.jobStore.class = org.quartz.impl.jdbcjobstore.JobStoreTX org.quartz.jobStore.driverDelegateClass = org.quartz.impl.jdbcjobstore.PostgreSQLDelegate org.quartz.jobStore.tablePrefix = QRTZ_ org.quartz.jobStore.dataSource = dataSource org.quartz.dataSource.dataSource.driver = org.postgresql.Driver org.quartz.dataSource.dataSource.URL = jdbc:postgresql://ec2-23-21-133-106.compute-1.amazonaws.com:5432/dsqpq2m83g9jc org.quartz.dataSource.dataSource.user = YOURUSERNAME org.quartz.dataSource.dataSource.password = YOURPASSWORD org.quartz.dataSource.dataSource.maxConnections = 1
Create your Quartz tables in Postgres:
heroku pg:psql
Copy your Postgres query in the console:
Quartz tables for Quartz 2.1.6
Make sure you are using the same version of tables as specified in your pom.xml in this case my pom looks like:
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>2.1.6</version>
</dependency>
2. Use Heroku Quartz Addon
Add Heroku scheduler to your project:
heroku addons:add scheduler:standard
Add the Quartz class Heroku must call in your Procfile:
scheduler: java $JAVA_OPTS -cp target/classes:target/dependency/* com.example.service.SchedulerService
Example of SchedulerService:
package com.example.service;
import org.quartz.*;
import org.quartz.impl.StdSchedulerFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import static org.quartz.JobBuilder.newJob;
import static org.quartz.SimpleScheduleBuilder.repeatSecondlyForever;
import static org.quartz.TriggerBuilder.newTrigger;
public class SchedulerService {
final static Logger logger = LoggerFactory.getLogger(SchedulerService.class);
public static void main(String[] args) throws Exception {
Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();
scheduler.start();
JobDetail jobDetail = newJob(DatabaseJob.class).build();
Trigger trigger = newTrigger()
.startNow()
.withSchedule(repeatSecondlyForever(5))
.build();
scheduler.scheduleJob(jobDetail, trigger);
}
public static class DatabaseJob implements Job {
@Override
public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
try {
//Add your job that needs to execute here
}
catch (Exception e) {
logger.error(e.getMessage(), e);
}
}
}
}
Have a look at Hangfire instead of Quartz. Hangfire has a full web interface that allows you to do so much more.