如何在Mac OS X上启动PostgreSQL服务器? [英] How to start PostgreSQL server on Mac OS X?

问题描述

最终更新:

我忘记了运行initdb命令.

< /最终更新>

< /FINAL UPDATE>

通过运行此命令

ps auxwww | grep postgres

我看到postgres没有运行

I see that postgres is not running

> ps auxwww | grep postgres
remcat          1789   0.0  0.0  2434892    480 s000  R+   11:28PM   0:00.00 grep postgres

这提出了一个问题: 如何启动Postgresql服务器?

this raises the question: How do I start the postgresql server?

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，所以我改为这样做:

The touch was not successful so I did this instead:

> 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服务器时，我仍然看到以下内容:

But when I try to start rails server, I still see this:

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(以删除.sample).这里是内容:

I found that there WAS NO pg_hba.conf (only pg_hba.conf.sample) so I modified the sample and renamed it (to remover the .sample). Here are the contents:

 # 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

还:

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:

这似乎很奇怪:

> egrep 'listen|port' /usr/local/var/postgres/postgresql.conf
egrep: /usr/local/var/postgres/postgresql.conf: No such file or directory

尽管如此，我确实做到了:

though, I did do this:

>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

所以我尝试了这个:

> 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 

仍然显示相同的服务器是否正在运行?"消息.

still getting the same "Is the server running?" message.

推荐答案

Homebrew 程序包管理器包括launchctl plists来启动自动地.有关更多信息，请运行brew info postgres.

The Homebrew package manager includes launchctl plists to start automatically. For more information run brew info postgres.

手动开始:

pg_ctl -D /usr/local/var/postgres start

手动停止:

pg_ctl -D /usr/local/var/postgres stop

自动开始:

要启动，请立即启动postgresql并在登录时重新启动:"

"To have launchd start postgresql now and restart at login:"

brew services start postgresql

pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start的结果是什么?

pg_ctl -D /usr/local/var/postgres status的结果是什么?

server.log中是否有任何错误消息?

Are there any error messages in the server.log?

确保在pg_hba.conf中启用了tcp localhost连接:

Make sure tcp localhost connections are enabled in pg_hba.conf:

# IPv4 local connections:
host    all             all             127.0.0.1/32            trust

检查postgresql.conf中的listen_addresses和端口:

Check the listen_addresses and port in postgresql.conf:

egrep 'listen|port' /usr/local/var/postgres/postgresql.conf

#listen_addresses = 'localhost'     # what IP address(es) to listen on;
#port = 5432                # (change requires restart)

---

清理

Postgres很可能是通过 Homebrew ， MacPorts 或

Postgres was most likely installed via Homebrew, Fink, MacPorts or the EnterpriseDB installer.

检查以下命令的输出，以确定安装了哪个软件包管理器:

Check the output of the following commands to determine which package manager it was installed with:

brew && brew list|grep postgres
fink && fink list|grep postgres
port && port installed|grep postgres

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