Drop Down MenusCSS Drop Down MenuPure CSS Dropdown Menu

PostgreSQL Start,Stop And Control the PostgreSQL Server

  • Pg_ctl Utility & Postgresql Service to do the same thing: Start the postgres server in the background. Without PGDATA set, "pg_ctl start" needs needs the additional -D /datadir argument in order to start.
  • whether You can start postgres Server as "root user" or "postgres user".
                      - as root user: "service postgresql start" or "/etc/init.d/postgresql start"
                      as postgres user "su - postgres:"run "pg_ctl start  -D /opt/PostgreSQL/9.3/data"
three Methods To start, stop, or control a PostgreSQL server. they are 
  1. Pg_ctl Utility
  2. Postgresl -9.3 Script
  3. Postgresql Service
1.pg_ctl is a utility :
pg_ctl -- initialize, start, stop, or control a PostgreSQL server
./pg_ctl stop -D /opt/PostgresPlus/9.3AS/data/
./pg_ctl start -D /opt/PostgresPlus/9.3AS/data/
./pg_ctl reload -D /opt/PostgresPlus/9.3AS/data/
./pg_ctl status -D /opt/PostgresPlus/9.3AS/data/
Examples Starting and Stopping the Postgresql Server Using pg_ctl is a utility
Starting the Server:
$ pg_ctl start
To start the server, waiting until the server is accepting connections:
$ pg_ctl -w stop
To start the server using port 5433, and running without fsync, use:
$ pg_ctl -o "-F -p 5432" start
[postgres@r1 bin]$ ./pg_ctl start -m fast -D /opt/PostgreSQL/9.3/data
server starting
[postgres@r1 bin]$ 2017-01-25 17:06:07 EST LOG:  redirecting log output to logging collector process
2017-01-25 17:06:07 EST HINT:  Future log output will appear in directory "pg_log".
Stopping the Server:

To stop the server, use
$ pg_ctl stop
The -m option allows control over how the server shuts down
[postgres@r1 bin]$ ./pg_ctl stop -m fast -D /opt/PostgreSQL/9.3/data
waiting for server to shut down... done
server stopped
Restarting the Server:

Restarting the server is almost equivalent to stopping the server and starting it again, except that pg_ctl saves and reuses the command line options that were passed to the previously running instance. To restart the server in the simplest form, use
$ pg_ctl restart
To restart the server, waiting for it to shut down and restart
[postgres@r1 bin]$  ./pg_ctl -w restart -D /opt/PostgreSQL/9.3/data
waiting for server to shut down... done
server stopped
2017-01-25 17:03:54 EST LOG:  redirecting log output to logging collector process
2017-01-25 17:03:54 EST HINT:  Future log output will appear in directory "pg_log".
waiting for server to start.... done
server started
To restart using port 5433, disabling fsync upon restart
[postgres@r1 bin]$  ./pg_ctl -o "-F -p 5432" restart -D /opt/PostgreSQL/9.3/data
waiting for server to shut down.... done
server stopped
2017-01-25 17:01:41 EST LOG:  redirecting log output to logging collector process
2017-01-25 17:01:41 EST HINT:  Future log output will appear in directory "pg_log".
server starting
Showing the Server Status:

Here is sample status output from pg_ctl
[postgres@r1 bin]$ ./pg_ctl status
pg_ctl: no database directory specified and environment variable PGDATA unset
Try "pg_ctl --help" for more information.
Solution:
[postgres@r1 bin]$  ./pg_ctl status -D /opt/PostgreSQL/9.3/data
pg_ctl: server is running (PID: 5188)
/opt/PostgreSQL/9.3/bin/postgres "-D" "/opt/PostgreSQL/9.3/data"
2.postgresql-9.3 script:
/etc/init.d/postgresql-9.3 start
/etc/init.d/postgresql-9.3 stop
/etc/init.d/postgresql-9.3 restart
/etc/init.d/postgresql-9.3 reload
/etc/init.d/postgresql-9.3 status
 Examples Starting and Stopping the Postgresql Server Using "/etc/init.d/postgresql9.3 options" is a utility
Here we run as "Postgres" user

[postgres@r1 bin]$ /etc/init.d/postgresql-9.3 start
Starting PostgreSQL 9.3: 
Password: 
waiting for server to start.... done
server started
touch: cannot touch `/var/lock/subsys/postgresql-9.3': Permission denied
PostgreSQL 9.3 started successfully
Here we run as "root" user

[root@r1 ~]# /etc/init.d/postgresql-9.3 start
Starting PostgreSQL 9.3: 
waiting for server to start.... done
server started
PostgreSQL 9.3 started successfully
3.Postgres service:
Service postgresql start
Service postgresql stop
Service postgresql restart

Service postgresql status

Set Up "service postgresql"on RedHat Linux

Comments

Popular posts from this blog

VMWARE WORKSTATION 3,4,5,6,7,8,9,10,11,12,14,15...etc LICENSE KEYS COLLECTION

How to find the server is whether standby (slave) or primary(master) in Postgresql replication ?

How to Configuration UDEV SCSI Rules In Oracle Linux 5, 6 and 7

Linux ctime,mtime,atime,cmin,amin,mmin

aspell