psycopg2与服务器断开连接

Question

我一直在解决这个问题.我设置了一台全新的机器.我已经安装了postgresql和我所有其他依赖项的新副本.基本上,我随机地将这些数据库断开连接.我可以执行相同的请求,无论是有效还是无效.外观非常不确定.在Postgresql上查看日志,它甚至没有连接.现在,我希望如果它从未连接过,我会在建立连接并获取光标时遇到此问题,但是我在以后尝试实际使用连接时会得到它.鉴于下面的回溯,我希望看到在pg日志中建立连接,然后由于某种原因断开连接.我没有,所以我想知道是否有一些不匹配的线索.

Traceback (most recent call last):
  File "/usr/local/lib/python2.6/dist-packages/Django-1.1-py2.6.egg/django/core/handlers/wsgi.py", line 242, in __call__
    response = self.get_response(request)
  File "/usr/local/lib/python2.6/dist-packages/Django-1.1-py2.6.egg/django/core/handlers/base.py", line 73, in get_response
    response = middleware_method(request)
  File "/usr/local/lib/python2.6/dist-packages/Django-1.1-py2.6.egg/django/middleware/locale.py", line 16, in process_request
    language = translation.get_language_from_request(request)
  File "/usr/local/lib/python2.6/dist-packages/Django-1.1-py2.6.egg/django/utils/translation/__init__.py", line 97, in get_language_from_request
    return real_get_language_from_request(request)
  File "/usr/local/lib/python2.6/dist-packages/Django-1.1-py2.6.egg/django/utils/translation/trans_real.py", line 349, in get_language_from_request
    lang_code = request.session.get('django_language', None)
  File "/usr/local/lib/python2.6/dist-packages/Django-1.1-py2.6.egg/django/contrib/sessions/backends/base.py", line 63, in get
    return self._session.get(key, default)
  File "/usr/local/lib/python2.6/dist-packages/Django-1.1-py2.6.egg/django/contrib/sessions/backends/base.py", line 172, in _get_session
    self._session_cache = self.load()
  File "/usr/local/lib/python2.6/dist-packages/Django-1.1-py2.6.egg/django/contrib/sessions/backends/db.py", line 16, in load
    expire_date__gt=datetime.datetime.now()
  File "/usr/local/lib/python2.6/dist-packages/Django-1.1-py2.6.egg/django/db/models/manager.py", line 120, in get
    return self.get_query_set().get(*args, **kwargs)
  File "/usr/local/lib/python2.6/dist-packages/Django-1.1-py2.6.egg/django/db/models/query.py", line 300, in get
    num = len(clone)
  File "/usr/local/lib/python2.6/dist-packages/Django-1.1-py2.6.egg/django/db/models/query.py", line 81, in __len__
    self._result_cache = list(self.iterator())
  File "/usr/local/lib/python2.6/dist-packages/Django-1.1-py2.6.egg/django/db/models/query.py", line 238, in iterator
    for row in self.query.results_iter():
  File "/usr/local/lib/python2.6/dist-packages/Django-1.1-py2.6.egg/django/db/models/sql/query.py", line 287, in results_iter
    for rows in self.execute_sql(MULTI):
  File "/usr/local/lib/python2.6/dist-packages/Django-1.1-py2.6.egg/django/db/models/sql/query.py", line 2369, in execute_sql
    cursor.execute(sql, params)
  File "/usr/local/lib/python2.6/dist-packages/Django-1.1-py2.6.egg/django/db/backends/util.py", line 19, in execute
    return self.cursor.execute(sql, params)
OperationalError: server closed the connection unexpectedly
        This probably means the server terminated abnormally
        before or while processing the request.

Answer 1

这是一个与此处发布的问题非常类似的问题:

Django + FastCGI - 随机提升OperationalError

我想,如果有人最终弄明白,那么答案将是相同的.同样的问题一直困扰着我一个月左右,我不知道是什么原因造成的.