postgresql运维

0. 帮助

$/home/lhl/az/pg/bin/pg_ctl --help
pg_ctl is a utility to initialize, start, stop, or control a PostgreSQL server.

Usage:
pg_ctl init[db]               [-D DATADIR] [-s] [-o "OPTIONS"]
pg_ctl start   [-w] [-t SECS] [-D DATADIR] [-s] [-l FILENAME] [-o "OPTIONS"]
pg_ctl stop    [-W] [-t SECS] [-D DATADIR] [-s] [-m SHUTDOWN-MODE]
pg_ctl restart [-w] [-t SECS] [-D DATADIR] [-s] [-m SHUTDOWN-MODE]
[-o "OPTIONS"]
pg_ctl reload  [-D DATADIR] [-s]
pg_ctl status  [-D DATADIR]
pg_ctl promote [-D DATADIR] [-s]
pg_ctl kill    SIGNALNAME PID

Common options:
-D, --pgdata=DATADIR   location of the database storage area
-s, --silent           only print errors, no informational messages
-t, --timeout=SECS     seconds to wait when using -w option
-V, --version          output version information, then exit
-w                     wait until operation completes
-W                     do not wait until operation completes
-?, --help             show this help, then exit
(The default is to wait for shutdown, but not for start or restart.)

If the -D option is omitted, the environment variable PGDATA is used.

Options for start or restart:
-c, --core-files       allow postgres to produce core files
-l, --log=FILENAME     write (or append) server log to FILENAME
-o OPTIONS             command line options to pass to postgres
(PostgreSQL server executable) or initdb
-p PATH-TO-POSTGRES    normally not necessary

Options for stop or restart:
-m, --mode=MODE        MODE can be "smart", "fast", or "immediate"

Shutdown modes are:
smart       quit after all clients have disconnected
fast        quit directly, with proper shutdown
immediate   quit without complete shutdown; will lead to recovery on restart

1. 安装

2. 启动

pg_ctl start -D pgdata

3. 关闭

pg_ctl stop -D pgdata
or
pg_ctl stop -m fast -D pgdata

4. 死锁处理