我如何在Mac OS X上启动PostgreSQL服务器?
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。
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
和
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
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