使用Redis跟蹤Flask中的在線用戶

-1

我正嘗試使用Redis的燒瓶來跟蹤所有在線用戶。我使用Redis代替全局字典的原因是，我可以爲會話設置超時。使用Redis跟蹤Flask中的在線用戶

否則我將不得不運行一個線程來定期刪除用戶，如果他們已經登錄超過10分鐘。

我按照這裏的代碼在我的燒瓶項目中包含Redis http://flask.pocoo.org/snippets/71/ 我在視圖中創建了redis對象，並且在視圖中也包含了輔助函數。但是我得到這個堆棧跟蹤，當我在打電話的get_online_users p.sunion（...）（）函數

return self.wsgi_app(environ, start_response) 
File "/Users/sahilshah/.virtualenvs/venv/lib/python2.7/site-    
packages/flask/app.py", line 1820, in wsgi_app 
response = self.make_response(self.handle_exception(e)) 
File "/Users/sahilshah/.virtualenvs/venv/lib/python2.7/site- 
packages/flask/app.py", line 1403, in handle_exception 
reraise(exc_type, exc_value, tb) 
File "/Users/sahilshah/.virtualenvs/venv/lib/python2.7/site- 
packages/flask/app.py", line 1817, in wsgi_app 
response = self.full_dispatch_request() 
File "/Users/sahilshah/.virtualenvs/venv/lib/python2.7/site- 
packages/flask/app.py", line 1477, in full_dispatch_request 
rv = self.handle_user_exception(e) 
File "/Users/sahilshah/.virtualenvs/venv/lib/python2.7/site- 
packages/flask/app.py", line 1381, in handle_user_exception 
reraise(exc_type, exc_value, tb) 
File "/Users/sahilshah/.virtualenvs/venv/lib/python2.7/site- 
packages/flask/app.py", line 1475, in full_dispatch_request 
rv = self.dispatch_request() 
File "/Users/sahilshah/.virtualenvs/venv/lib/python2.7/site 
packages/flask/app.py", line 1461, in dispatch_request 
return self.view_functions[rule.endpoint](**req.view_args) 
File "/Users/sahilshah/Documents/2015 Spring Classes/CIS 
350/studybuddy/sahil/app/views.py", line 23, in signin 
online_users = get_online_users() 
File "/Users/sahilshah/Documents/2015 Spring Classes/CIS 
350/studybuddy/sahil/app/views.py", line 102, in get_online_users 
for x in minutes]) 
File "/Users/sahilshah/.virtualenvs/venv/lib/python2.7/site- 
packages/redis/client.py", line 1543, in sunion 
return self.execute_command('SUNION', *args) 
File "/Users/sahilshah/.virtualenvs/venv/lib/python2.7/site- 
packages/redis/client.py", line 570, in execute_command 
connection.send_command(*args) 
File "/Users/sahilshah/.virtualenvs/venv/lib/python2.7/site- 
packages/redis/connection.py", line 556, in send_command 
self.send_packed_command(self.pack_command(*args)) 
File "/Users/sahilshah/.virtualenvs/venv/lib/python2.7/site- 
packages/redis/connection.py", line 532, in send_packed_command 
self.connect() 
File "/Users/sahilshah/.virtualenvs/venv/lib/python2.7/site 
packages/redis/connection.py", line 436, in connect 
raise ConnectionError(self._error_message(e)) 
ConnectionError: Error 61 connecting to localhost:6379. Connection refused.

來源

2015-05-03 sahibeast

你需要運行redis :) – Jared

你是什麼意思運行redis？ – sahibeast

Redis是一個服務器。它需要運行才能讓您的應用連接到它。 – dirn

確保你已經安裝了Redis的，它沒有內置到任何分配。 Redis團隊建議從下載安裝穩定版本（即不通過您的Linux發行版回購）。下面是我所做的：

wget http://download.redis.io/redis-stable.tar.gz 
    tar xvzf redis-stable.tar.gz 
    cd redis-stable 
    make hiredis jemalloc linenoise lua

請確保您有通過發出一個Redis的-CLI命令運行的服務器，你應該會看到一個提示（默認提示爲「127.0.0.1:6379>」）。如果您有任何問題想要獲得該提示，請在SO上發佈有關該問題的具體問題。

來源

2015-05-04 05:32:23

使用Redis跟蹤Flask中的在線用戶

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