Spring batch restrict single instance of job across multiple servers

Question

I have one Spring Batch job that can potentially be run across multiple servers. I have a listener in place that prevents multiple instances of the job being run at the same time on one server. However, I want to ensure this job can't be run at the same time on multiple servers.

I've searched and found no solution to this problem

Answer 1

I implemented a listener that checks the number of running Job Executions within the spring batch control tables matching a certain name. If there size of the executions exceeds 1, jobExecution of the current job fails. Here's the code:

@Component
public class SingleInstanceListener implements JobExecutionListener {
    @Autowired
    private JobExplorer explorer;

    @Override
    public void beforeJob(JobExecution jobExecution) {
        String jobName = jobExecution.getJobInstance().getJobName();
        Set<JobExecution> executions = explorer.findRunningJobExecutions(jobName);
        if(executions.size() > 1) {
            jobExecution.stop();
        }
    }

    @Override
    public void afterJob(JobExecution jobExecution) {

    }

}