关于 django 使用 apscheduler 一次任务被重复执行问题

APSwork 部分内容

redis_connet = redis.Redis(host='localhost', port=6379, db=0)

jobstores = {
    'redis': RedisJobStore(),
    }
executors = {
    'default': ThreadPoolExecutor(4)
    }
sched = BackgroundScheduler(jobstores=jobstores, executors=executors)

def open_in(servername,serverip,cmd):
    print '{0}--open in ....'.format(servername)
    .....

def open_out(servername,serverip,cmd):
    print '{0}---open out ....'.format(servername)
    .....

def cronKaifu(starttime,servername,serverip,cmd_in,cmd_out):
    ....

    jobstores = {
        'redis': RedisJobStore(),
    }
    executors = {
        'default': ThreadPoolExecutor(1)
        # 'processpool': ProcessPoolExecutor(3)
    }
    sched = BackgroundScheduler(jobstores=jobstores, executors=executors)
		sched.add_job(func=open_in,args=(servername,serverip,cmd_in,),trigger='date',next_run_time=open_in_time,jobstore='redis',id='{0}_in_{1}'.format(servername,sendtime_timestamp_in))
    print sched.get_jobs()
    
    
    sched.add_job(func=open_out,args=(servername,serverip,cmd_out,),trigger='date',next_run_time=open_out_time,jobstore='redis',id='{0}_out_{1}'.format(servername,sendtime_timestamp_out))
    print sched.get_jobs()
    sched.start()

views.py 里面调用这个任务

def kaifu_time(request):
	....
	....
	cronKaifu(timeArray,server_name,server_ip,open_in_cmd,open_out_cmd)
	......
	....
	return render(request, 'mt/kaifu_time.html', locals())

添加任务后，两次打印 get_jobs()内容

[<Job (id=mt_ios999game_in_1516005540000 name=open_in)>]
[<Job (id=mt_ios999game_in_1516005540000 name=open_in)>, <Job (id=mt_ios999game_out_1516006260000 name=open_out)>]

到点后，id=mt_ios999game_in_1516005540000，会被执行 2 次，有时候会是 3 次，但有时候又是正常的。

[15/Jan/2018 15:02:22] "POST /mt/kaifu_time/ HTTP/1.1" 302 0
[15/Jan/2018 15:02:22] "GET /mt/kaifu_time HTTP/1.1" 301 0
[15/Jan/2018 15:02:22] "GET /mt/kaifu_time/ HTTP/1.1" 200 19539
mt_ios999game--open in ....
mt_ios999game--open in ....  <==这里的打印两次
Exception in thread APScheduler:
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/threading.py", line 801, in __bootstrap_inner
    self.run()
  File "/usr/local/lib/python2.7/threading.py", line 754, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/qzdata1/python_env/LazyOps/lib/python2.7/site-packages/apscheduler/schedulers/blocking.py", line 30, in _main_loop
    wait_seconds = self._process_jobs()
  File "/qzdata1/python_env/LazyOps/lib/python2.7/site-packages/apscheduler/schedulers/base.py", line 981, in _process_jobs
    self.remove_job(job.id, jobstore_alias)
  File "/qzdata1/python_env/LazyOps/lib/python2.7/site-packages/apscheduler/schedulers/base.py", line 613, in remove_job
    raise JobLookupError(job_id)
JobLookupError: u'No job by the id of mt_ios999game_in_1516005540000 was found'

我把两个 add_job()位置互掉后，即先添加 add_job(func=open_out...) 再添加 add_job(func=open_in..)

然后 open_out 会被执行两次。

这样的问题，我应如何修改。

感觉毫无逻辑出现这问题，一次性任务，会被重复执行，而且是同一时间的。