如何在Mac OS X上启动PostgreSQL服务器?
最终更新:
我忘记了运行initdb命令。
</ FINAL UPDATE>
通过运行这个命令
ps auxwww | grep postgres
我看到postgres没有运行
> ps auxwww | grep postgres
remcat 1789 0.0 0.0 2434892 480 s000 R+ 11:28PM 0:00.00 grep postgres
这引发了一个问题:我如何启动postgresql服务器?
更新:
>pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
server starting
sh: /usr/local/var/postgres/server.log: No such file or directory
更新2:
触摸不成功,所以我这样做:
> mkdir /usr/local/var/postgres
> vi /usr/local/var/postgres/server.log
> ls /usr/local/var/postgres/
server.log
但是当我尝试启动rails server时,我仍然看到:
Is the server running on host "localhost" and accepting
TCP/IP connections on port 5432?
更新3:
> pg_ctl -D /usr/local/var/postgres status
pg_ctl: no server running
更新4:
我发现那里没有pg_hba.conf(只有pg_hba.conf.sample),因此我修改了示例并将其重命名(以移除.sample)。 这里是内容:
# IPv4 local connections:
host all all 127.0.0.1/32 trust
# IPv6 local connections:
host all all ::1/128 trust
但我不明白这一点:
> pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
server starting
> pg_ctl -D /usr/local/var/postgres status
pg_ctl: no server running
也:
sudo find / -name postgresql.conf
find: /dev/fd/3: Not a directory
find: /dev/fd/4: Not a directory
更新5:
sudo pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
Password:
pg_ctl: cannot be run as root
Please log in (using, e.g., "su") as the (unprivileged) user that will own the server process.
更新6:
这看起来很奇怪:
> egrep 'listen|port' /usr/local/var/postgres/postgresql.conf
egrep: /usr/local/var/postgres/postgresql.conf: No such file or directory
不过,我确实这样做了:
>sudo find / -name "*postgresql.conf*"
find: /dev/fd/3: Not a directory
find: /dev/fd/4: Not a directory
/usr/local/Cellar/postgresql/9.0.4/share/postgresql/postgresql.conf.sample
/usr/share/postgresql/postgresql.conf.sample
所以我这样做了:
egrep 'listen|port' /usr/local/Cellar/postgresql/9.0.4/share/postgresql/postgresql.conf.sample
#listen_addresses = 'localhost' # what IP address(es) to listen on;
#port = 5432 # (change requires restart)
# supported by the operating system:
# %r = remote host and port
所以我试过这个:
> cp /usr/local/Cellar/postgresql/9.0.4/share/postgresql/postgresql.conf.sample /usr/local/Cellar/postgresql/9.0.4/share/postgresql/postgresql.conf
> cp /usr/share/postgresql/postgresql.conf.sample /usr/share/postgresql/postgresql.conf
仍然相同“服务器正在运行吗?” 信息。
Homebrew软件包管理器包括launchctl plists自动启动。 有关更多信息,请运行brew info postgres
。
手动启动:
pg_ctl -D /usr/local/var/postgres start
手动停止:
pg_ctl -D /usr/local/var/postgres stop
自动启动:
“要让launchd立即启动postgresql并在登录时重新启动:”
brew services start postgresql
pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
什么?
pg_ctl -D /usr/local/var/postgres status
什么?
server.log中是否有错误消息?
确保在pg_hba.conf中启用了tcp localhost连接:
# IPv4 local connections:
host all all 127.0.0.1/32 trust
检查postgresql.conf中的listen_addresses和端口:
egrep 'listen|port' /usr/local/var/postgres/postgresql.conf
#listen_addresses = 'localhost' # what IP address(es) to listen on;
#port = 5432 # (change requires restart)
打扫干净
Postgres很可能是通过Homebrew,Fink,MacPorts或EnterpriseDB安装程序安装的。
检查以下命令的输出以确定安装了哪个软件包管理器:
brew && brew list|grep postgres
fink && fink list|grep postgres
port && port installed|grep postgres
如果你想手动启动和停止postgresql(通过自制软件安装),最简单的方法是:
brew services start postgresql
和
brew services stop postgresql
我有几乎完全相同的问题,你引用initdb命令作为修复。 这也是我的解决方案,但我没有看到任何人在这里发布它,所以对于那些正在寻找它的人:
initdb /usr/local/var/postgres -E utf8
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