控制台输出能看到111111，但是后面就没了，看进程死锁了，而且不能稳定复现这个问题。10次出来1，2次吧

def check(s,c):
    print(22222222222222)
    app = current_app._get_current_object()
    logger = current_app.logger
    ...

class fix_service(Resource):
    def post(self, service_id):
        ...
        logger.info('fix: {name} done，start check'.format(name=service.name))
        # check
        with multiprocessing.Pool() as pool:
            print(111111111)
            check_results = pool.starmap(check, containers)

        logger.info('fix: check done')
        ...

# ps -elf
0 S root       6517   5322  0  80   0 - 50490 poll_s 10:54 ?        00:00:00 /usr/local/bin/python3.5 /usr/local/bin/gunicorn --threads 8 app:create_app("test") -b 0.0.0.0:18113 --access-lo
1 S root       6520   6517  1  80   0 - 290893 ep_pol 10:54 ?       00:00:10 /usr/local/bin/python3.5 /usr/local/bin/gunicorn --threads 8 app:create_app("test") -b 0.0.0.0:18113 --access-lo
1 S root       6730   6520  0  80   0 - 290690 futex_ 11:01 ?       00:00:00 /usr/local/bin/python3.5 /usr/local/bin/gunicorn --threads 8 app:create_app("test") -b 0.0.0.0:18113 --access-lo

(gdb) bt
#0  0x00007f99c0e31a00 in sem_wait () from /lib64/libpthread.so.0
#1  0x00007f99b5950ff1 in semlock_acquire (self=0x7f99ace44688, args=<value optimized out>, kwds=<value optimized out>) at /opt/soft/Python-3.5.2/Modules/_multiprocessing/semaphore.c:307
#2  0x00007f99c10fd961 in PyCFunction_Call (func=0x7f99ad2000d8, args=0x7f99c16ff048, kwds=<value optimized out>) at Objects/methodobject.c:98
#3  0x00007f99c1184f25 in call_function (f=<value optimized out>, throwflag=<value optimized out>) at Python/ceval.c:4705
#4  PyEval_EvalFrameEx (f=<value optimized out>, throwflag=<value optimized out>) at Python/ceval.c:3236
#5  0x00007f99c1185e99 in _PyEval_EvalCodeWithName (_co=<value optimized out>, globals=<value optimized out>, locals=<value optimized out>, args=<value optimized out>, argcount=1,