Spring @Scheduled is executing task twice when using annotations

Question

I have made task using Spring @Scheduled annotation, but for some reason it is executing task twice. My Spring Framework version is 3.0.2.

@Service
public class ReportService {

    @Scheduled(fixedDelay=1000 * 60 * 60* 24)
    @Transactional
    public void dailyReportTask()
    {
        ... code here ...
    }

}

Here is my XML:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:task="http://www.springframework.org/schema/task"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task-3.0.xsd"&gt;
    <task:scheduler id="taskScheduler" />
    <task:executor id="taskExecutor" pool-size="1" />
    <task:annotation-driven executor="taskExecutor"
        scheduler="taskScheduler" />
</beans>

Answer 1

Where are you actually running it? Your PC? Single server? 2 x load-balanced app servers?

Could be it's running on (a) your PC and (b) your server, so it just looks like it's running twice, if you see what I mean: it's correctly running once, just on two distinct locations.