Hello,all.
I have installed the postgresql .
$/usr/local/pgsql/bin/postgres -D /usr/local/pgsql/data
LOG:database system was shut down at 2011-11-10 15:36:14 CST
LOG:database system is ready to accept connections
LOG:autovacuum launcher started
but when I want to connect to the server at another terminal
$/usr/local/pgsql/bin/createdb mydb
createdb:could nto connect to database postgres:could not connect to server:No such file or directory
Is the server running locally and accepting connections on Unix domain socket"/var/run/postgresql/.s.PGSQL.5432"?
$/usr/local/pgsql/bin/postgres -D /usr/local/pgsql/data
FATAL:lock file "postmaster.pid"already exists
HINT: Is another postmaster(PID 1950)running in data directory "/usr/local/pgsql/data"?
I don't know how to slove this problem,I wish you can tell me the reason.Thanks .