Question

我有一些使用多重处理的功能（save_histoty）。该函数将对象插入数据库。为了改善时间，我使用了来自多处理的过程。方法运行：

def run(self):
    from time import sleep
    from django import db

    db.connections.close_all()

我对每个进程都使用新的连接，这是必要的。该功能在night_scripts模块中。而且它的工作很好

但是我使用py.test

def test_order(self):
    res = night_scripts.run_night_scripts()

追踪：

def create_cursor（self）：


cursor = self.connection.cursor（）
    E InterfaceError：连接已关闭

CRITICAL [NIGHT TESTING] script <save_history> failed
Traceback (most recent call last):
  File "/home/healfy/PycharmProjects/finance_/finance/finance/../apps/main/night_scripts.py", line 65, in wrapper
    func(*args, **kwargs)
  File "/home/healfy/PycharmProjects/finance_/finance/finance/../apps/main/night_scripts.py", line 268, in delete_unfinished_loans
    Loan.objects.delete_unfinished_loans()
  File "/home/healfy/PycharmProjects/finance_/finance/finance/../apps/main/managers.py", line 594, in delete_unfinished_loans
    .update(status=Loan.REVOKED)
  File "/home/healfy/.virtualenvs/finance/local/lib/python2.7/site-packages/django/db/models/query.py", line 637, in update
    rows = query.get_compiler(self.db).execute_sql(CURSOR)
  File "/home/healfy/.virtualenvs/finance/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 1148, in execute_sql
    cursor = super(SQLUpdateCompiler, self).execute_sql(result_type)
  File "/home/healfy/.virtualenvs/finance/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 833, in execute_sql
    cursor = self.connection.cursor()
  File "/home/healfy/.virtualenvs/finance/local/lib/python2.7/site-packages/django/db/backends/base/base.py", line 233, in cursor
    cursor = self.make_cursor(self._cursor())
  File "/home/healfy/.virtualenvs/finance/local/lib/python2.7/site-packages/django/db/backends/base/base.py", line 206, in _cursor
    return self.create_cursor()
  File "/home/healfy/.virtualenvs/finance/local/lib/python2.7/site-packages/django/db/utils.py", line 94, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/home/healfy/.virtualenvs/finance/local/lib/python2.7/site-packages/django/db/backends/base/base.py", line 206, in _cursor
    return self.create_cursor()
  File "/home/healfy/.virtualenvs/finance/local/lib/python2.7/site-packages/django/db/backends/postgresql/base.py", line 211, in create_cursor
    cursor = self.connection.cursor()
InterfaceError: connection already closed

那意味着当功能完成时，它会关闭所有连接吗？
以及如何解决？
平台linux2 -- Python 2.7.15rc1, pytest-2.9.1, py-1.6.0, pluggy-0.3.1

Django：py.test在单独的过程中使用相同的测试数据库

0 个答案: