正在学习中间件，于是写了个Demo，这个Demo在runserver下中间件的运行是正常的，但部署到uWSGI后就无法正常统计ip每分钟的访问频率了，百度和谷歌后也没能找到解决我困惑的答案。

很简单的Demo：

import time

from django.core.cache import cache
from django.http import HttpResponse
from django.utils.deprecation import MiddlewareMixin


class FindIPMiddleware(MiddlewareMixin, SaveIP):
    def process_request(self, request):
        ip = request.META.get('REMOTE_ADDR')

        black_list = cache.get('black', [])    # 如果cache中没有black，就返回一个空列表
        if ip in black_list:
            return HttpResponse('此ip因多次违规，已被禁止访问')
            
        # 将每次指定ip访问的时间记录在requests中
        requests = cache.get(ip, [])
        # 将每次访问的requests记录在txt中
        with open('test.txt', 'a') as f:
            f.write(str(requests)+'\n')
            
        # 如果requests存在且当前时间与最早访问的时间差大于60秒，就pop掉
        while requests and time.time() - requests[-1] > 60:
            requests.pop()
        # 将当前访问的时间插入为requests列表的第一个
        requests.insert(0, time.time())
        # 将ip-requests放到缓存中
        cache.set(ip, requests, timeout=60)
        
        # 如果requets长度大于30，封禁ip，大于等于10小于30警告
        if len(requests) > 30:
            black_list.append(ip)
            cache.set('black', black_list, timeout=60*60*24)
            return HttpResponse('ip被封禁')
        if len(requests) >= 10:
            return HttpResponse('请求频率过高，已被限制访问，如果继续恶意访问，将被添加进黑名单')
        return None

开发环境与线上环境分别访问10次，生成两个text.txt文件
runserver开发服务器下生成的test.txt文件：

[]
[1574515435.201666]
[1574515436.6527722, 1574515435.201666]
[1574515437.4844859, 1574515436.6527722, 1574515435.201666]
[1574515438.1917062, 1574515437.4844859, 1574515436.6527722, 1574515435.201666]
[1574515438.856246, 1574515438.1917062, 1574515437.4844859, 1574515436.6527722, 1574515435.201666]
[1574515439.553581, 1574515438.856246, 1574515438.1917062, 1574515437.4844859, 1574515436.6527722, 1574515435.201666]
[1574515440.3515499, 1574515439.553581, 1574515438.856246, 1574515438.1917062, 1574515437.4844859, 1574515436.6527722, 1574515435.201666]
[1574515441.155905, 1574515440.3515499, 1574515439.553581, 1574515438.856246, 1574515438.1917062, 1574515437.4844859, 1574515436.6527722, 1574515435.201666]
[1574515441.787576, 1574515441.155905, 1574515440.3515499, 1574515439.553581, 1574515438.856246, 1574515438.1917062, 1574515437.4844859, 1574515436.6527722, 1574515435.201666]

这是线上环境生成的test.txt文件：

[]
[]
[]
[]
[1574516234.4257581]
[1574516232.7529194]
[1574516233.7064342]
[1574516235.0543022]
[1574516237.4400864, 1574516235.0543022]
[1574516236.268929, 1574516232.7529194]

这是uWSGI.ini配置文件：

[uwsgi]
http=0.0.0.0:8888

chdir=/home/thepoy/django/javaScript

wsgi-file=javaScript/wsgi.py

processes=4
threads=2
enable-threads=True
master=True
pidfile=uwsgi.pid
daemonize=uwsgi.log

开发text.txt文件的记录是逐条增加的，
但是线上text.txt文件却非如此，这样就无法正常统计ip每分钟的访问频率了。

个人觉得出现这个问题应该是与uWSGI的多进程和多线程有关，但是这不要紧，我想知道怎么才能解决这个问题，请各位大佬们指点一下，谢谢！