在金字塔中从SQLITE3迁移到Postgresql(psql(PostgreSQL)9.4.5)
我一直在使用sqlite3
来访问sqlalchemy
数据库。我开发了一个pyramid
Web框架,sqlite3一直在工作。但是,我希望不再使用sqlite3
而是使用postgresql
作为数据库。我是新手,我想弄清楚我是否错过了一步。
我在psycopg2
下载了development.ini
(将其添加到setup.py),从而更改了sqlalchemy.url = sqlite:////Users/ack/code/venv/NotssDB/notssdb/notssdb
文件:
sqlalchemy.url = postgresql://ack:password@localhost:5432/notssdb
到:
pserve development.ini
我使用mac osx通过this tutorial安装了postgres。
据说,当我启动应用程序sqlite
时...数据库没有连接或加载。当我使用sqlalchemy.url = postgresql://ack:password@localhost:5432/notssdb
# By default, the toolbar only appears for clients from IP addresses
# '127.0.0.1' and '::1'.
# debugtoolbar.hosts = 127.0.0.1 ::1
###
# wsgi server configuration
###
[server:main]
use = egg:waitress#main
host = 0.0.0.0
port = 5432
url时,数据库会连接。
我可能会缺少什么?
development.ini 在金字塔中:
postgresql.conf
# - Connection Settings -
#listen_addresses = 'localhost' # what IP address(es) to listen on;
# comma-separated list of addresses;
# defaults to 'localhost'; use '*' for all
# (change requires restart)
#port = 5432 # (change requires restart)
max_connections = 100 # (change requires restart)
LOG: invalid length of startup packet
LOG: invalid length of startup packet
postgres服务器日志:
pg_hba.conf
我是否需要更改this site? (postgres config file也指它...)我在# "local" is for Unix domain socket connections only
local all all trust
# IPv4 local connections:
host all all 0.0.0.0/0 trust
host all all 127.0.0.1/32 trust
# IPv6 local connections:
host all all ::1/128 trust
# Allow replication connections from localhost, by a user with the
# replication privilege.
#local replication ack trust
#host replication ack 127.0.0.1/32 trust
#host replication ack ::1/128 trust
中看到了这一点:
psql -h localhost -d notssdb -p 5432
使用终端,这将我连接到postgres上的数据库:
$ python setup.py develop #installs packages
$ initialize_notssweb_db development.ini # --db Session--
$ pserve development.ini #terminal: --db Session-- Starting server in PID 3501. serving on http://0.0.0.0:5432
postgresql服务器自动启动
我如何启动金字塔应用
$ pg_ctl -D /usr/local/var/postgres status
pg_ctl: server is running (PID: 701)
/usr/local/Cellar/postgresql/9.4.5/bin/postgres "-D" "/usr/local/var/postgres" "-r" "/usr/local/var/postgres/server.log"
检查服务器:
Console.KeyAvalible
答案 0 :(得分:2)
不确定这是否是唯一的问题,但看起来你有端口冲突。您尝试在同一端口上启动金字塔应用程序(通过pserve)默认情况下postgresql侦听(5432)。
[server:main]
use = egg:waitress#main
host = 0.0.0.0
port = 5432
此处的端口参数用于pserve监听端口,将其更改为8000或其他内容。