错误显示您要连接的数据库未接受请求或正在侦听主机“192.168.2.1”。
在postgresql.conf
文件,更改listen_addresses = '*'
让我再细说,你应该做的事情,
- 在
settings.py
也信息添加有关routers.py
数据库的信息:
settings.py
DATABASES = {
'default': {},
'master': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': '',
'USER': '',
'PASSWORD': '',
'HOST': '',
'PORT': 5432,
},
'slave': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': '',
'USER': '',
'PASSWORD': '',
'HOST': '',
'PORT': 5432,
}
}
SLAVE_DATABASES = ['slave']
DATABASE_ROUTERS = ['path.to.your.routers.MasterSlaveRouter']
- 创建
routers.py
将处理切换读取和写入设置中提到的数据库中的要求:如果是这样,现在
routers.py
from django.conf import settings
import socket
def test_connection_to_db(database_name):
try:
db_definition = getattr(settings, 'DATABASES')[database_name]
s = socket.create_connection(
(db_definition['HOST'], db_definition['PORT']), 5)
s.close()
return True
except:
return False
class MasterSlaveRouter(object):
def db_for_read(self, model, **hints):
"""
Reads go to a randomly-chosen slave.
"""
if test_connection_to_db('master'):
return 'master'
return 'slave'
def db_for_write(self, model, **hints):
"""
Writes always go to master.
"""
if test_connection_to_db('master'):
return 'master'
return 'slave'
def allow_relation(self, obj1, obj2, **hints):
"""
Relations between objects are allowed if both objects are
in the master/slave pool.
"""
db_list = ('master', 'slave')
if obj1._state.db in db_list and obj2._state.db in db_list:
return True
return None
def allow_migrate(self, db, model):
"""
All non-auth models end up in this pool.
"""
return True
您主人失望了,奴隶已经起来了。请求将被相应转移,反之亦然。确保任何一个数据库已启动。
HTH! :)