如何控制Dolphinscheduler任务不能同时执行多个

Dolphinscheduler周期任务

ProcessScheduleJob类为Dolphinscheduler周期调度的job，只需判断上次执行的流程实例（processInstance）正在运行中，阻断插入command即可控制下次任务的运行

    @Override
    public void execute(JobExecutionContext context) throws JobExecutionException {

        Assert.notNull(getProcessService(), "please call init() method first");

        JobDataMap dataMap = context.getJobDetail().getJobDataMap();

        int projectId = dataMap.getInt(Constants.PROJECT_ID);
        int scheduleId = dataMap.getInt(Constants.SCHEDULE_ID);


        Date scheduledFireTime = context.getScheduledFireTime();


        Date fireTime = context.getFireTime();

        logger.info("scheduled fire time :{}, fire time :{}, process id :{}", scheduledFireTime, fireTime, scheduleId);

        // query schedule
        Schedule schedule = getProcessService().querySchedule(scheduleId);
        if (schedule &#