我有一个带有Mongo后端的Flask应用程序,可以在我的本地开发环境中完美运行。我将其移至AWS托管的RHEL实例,并通过httpd / mod_wsgi使Flask应用程序正常工作。但是,连接到MongoHQ上的数据库仍然会失败。
连接的代码是:
from flask import Flask
from flask.ext.pymongo import PyMongo
app = Flask(__name__)
app.config["MONGO_URI"] = 'mongodb://myusername:mypasswd@myhost.mongohq.com:myport/mydb'
mongo = PyMongo(app)
示例查询:
@app.route('/books')
def books()
all_books = mongo.db.listings.distinct("bookinfo")
return all_books
来自Apache的错误消息(为便于阅读而编辑):
mod_wsgi (pid=5116, process='myProcess', application=''): Loading WSGI script '/route/to/myapp.wsgi'.
mod_wsgi (pid=5116): Target WSGI script '/route/to/myapp.wsgi' cannot be loaded as Python module.
mod_wsgi (pid=5116): Exception occurred processing WSGI script '/route/to/myapp.wsgi'.
Traceback (most recent call last):
File "/route/to/myapp.wsgi", line 10, in <module>
from myApp import app as application
File "/route/to/myapp.py", line 8, in <module>
mongo = PyMongo(app)
File "/route/to/my/venv/lib/python2.6/site-packages/flask_pymongo/__init__.py", line 98, in __init__
self.init_app(app, config_prefix)
File "/route/to/my/venv/python2.6/site-packages/flask_pymongo/__init__.py", line 230, in init_app
cx = connection_cls(*args, **kwargs)
File "/route/to/my/venv/python2.6/site-packages/pymongo/mongo_client.py", line 352, in __init__
raise ConnectionFailure(str(e))
ConnectionFailure: could not connect to myhost.mongohq.com:myport: [Errno 13] Permission denied
我的想法/调查:
任何帮助/提示/可能性将不胜感激。
答案 0 :(得分:0)
SELinux是这个的根本原因。我已禁用防火墙,但从未通过编辑/ etc / sysconfig / selinux文件关闭SELinux。在这样做之后,应用程序仍然存在问题,但是这个日志记录代码帮助很大:
import logging
file_handler = logging.FileHandler(filename='/var/www/myapp/flaskerror.log')
file_handler.setLevel(logging.WARNING)
app.logger.addHandler(file_handler)