我如何在Mac OS X上启动PostgreSQL服务器?

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我如何在Mac OS X上启动PostgreSQL服务器?

最终更新:

我忘记了运行initdb命令。


通过运行这个命令

ps auxwww | grep postgres

我发现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

这引起了一个问题:

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,所以我做了这个:

> 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Ruby on Rails服务器时,我仍然看到这个:

服务器是否在\"localhost\"上运行,并接受端口5432上的TCP/IP连接?

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文件(只有pg_hba.conf.sample文件),所以我修改了样例并重命名它(去掉了.sample)。以下是内容:

 # IPv4 local connections:
 host    all             all             127.0.0.1/32           trust
 # IPv6 local connections:
 host    all             all             ::1/128                trust

但是我不明白这个:

> 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

还有:

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

虽然,我确实做了这个:

>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

所以我做了这个:

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

我仍然得到相同的“服务器是否在运行?”消息。

admin 更改状态以发布 2023年5月24日
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如果您想要手动启动和停止PostgreSQL(通过Homebrew安装),最简单的方法是:

brew services start postgresql

brew services stop postgresql

如果您有特定版本,请确保加上版本后缀。例如:

brew services start postgresql@10

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Homebrew软件包管理器包含启动自动程序的launchctl plists。获取更多信息,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现在启动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?

确保在pg_hba.conf中启用了tcp本地主机连接:

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

检查postgresql.conf中的listen_addresses和port:

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

PostgreSQL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使用了哪个软件包管理器进行安装:

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

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