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Having a bit of an issue with PostgreSQL on Mac OS X 10.8.4. I accidentally did brew rm postgresql --force while the postgres server was running. When I installed using brew install postgresql and ran pg_ctl -D /usr/local/var/postgres start I get:

pg_ctl: another server might be running; trying to start server anyway
server starting
FATAL:  lock file "postmaster.pid" already exists                                                                       
HINT:  Is another postmaster (PID 752) running in data directory "/usr/local/var/postgres"?

when I run "ps -ef | grep postgres" I get:

501   752   235   0 12:42PM ??         0:00.01 /usr/local/opt/postgresql/bin/postgres -D /usr/local/var/postgres -r /usr/local/var/postgres/server.log
501   754   752   0 12:42PM ??         0:00.00 postgres: checkpointer process       
501   755   752   0 12:42PM ??         0:00.34 postgres: writer process       
501   756   752   0 12:42PM ??         0:00.02 postgres: wal writer process       
501   757   752   0 12:42PM ??         0:00.01 postgres: autovacuum launcher process       
501   758   752   0 12:42PM ??         0:00.01 postgres: stats collector process       
501   945   452   0 12:58PM ttys000    0:00.00 grep postgres

when I try to stop the server with pg_ctl stop -D /usr/local/var/postgres -m fast or pg_ctl -D /usr/local/var/postgres stop -mi I get:

waiting for server to shut down........................................... Failed
pg_ctl: server does not shut down

EDIT

which pg_ctl
/usr/local/bin/pg_ctl
pg_ctl --version
pg_ctl (PostgreSQL) 9.2.4

Gist of server.log: https://gist.github.com/anonymous/6106182

Answers

turns out that my brew.plist for postgres needed to be unloaded and removed at ~/Library/LaunchAgents/ . After a restart all is well... closing question.

# postgresql # macos
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