How to start PostgreSQL server on Mac OS X?
FINAL UPDATE:
I had forgotten to run the initdb command.
< /FINAL UPDATE>
by running this command
ps auxwww | grep postgres
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
this raises the question: How do I start the postgresql server?
update:
>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
update 2:
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
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?
update 3:
> pg_ctl -D /usr/local/var/postgres status
pg_ctl: no server running
update 4:
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
but I don't understand this:
> 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
also:
sudo find / -name postgresql.conf
find: /dev/fd/3: Not a directory
find: /dev/fd/4: Not a directory
update 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.
update 6:
this seems odd:
> egrep 'listen|port' /usr/local/var/postgres/postgresql.conf
egrep: /usr/local/var/postgres/postgresql.conf: No such file or directory
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
so I did this:
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
so I tried this:
> 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
still getting the same "Is the server running?" message.
The Homebrew package manager includes launchctl plists to start automatically. For more information run brew info postgres .
Start manually:
pg_ctl -D /usr/local/var/postgres start
Stop manually:
pg_ctl -D /usr/local/var/postgres stop
Start automatically:
"To have launchd start postgresql now and restart at login:"
brew services start postgresql
What is the result of pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start ?
What is the result of pg_ctl -D /usr/local/var/postgres status ?
Are there any error messages in the server.log?
Make sure tcp localhost connections are enabled in pg_hba.conf:
# IPv4 local connections:
host all all 127.0.0.1/32 trust
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)
Cleaning up
Postgres was most likely installed via Homebrew, Fink, MacPorts or the EnterpriseDB installer.
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
If you want to manually start and stop postgresql (installed via homebrew), the easiest way is:
brew services start postgresql
and
brew services stop postgresql
I had almost the exact same issue, and you cited the initdb command as being the fix. This was also the solution for me, but I didn't see that anyone posted it here, so for those who are looking for it:
initdb /usr/local/var/postgres -E utf8
上一篇: 从苹果的来源构建DYLD