This is the command pg_ctlcluster that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
pg_ctlcluster - start/stop/restart/reload a PostgreSQL cluster
SYNOPSIS
pg_ctlcluster [options] cluster-version cluster-name action -- [pg_ctl options]
where action = start|stop|restart|reload|status|promote
DESCRIPTION
This program controls the postgres server for a particular cluster. It essentially wraps
the pg_ctl(1) command. It determines the cluster version and data path and calls the right
version of pg_ctl with appropriate configuration parameters and paths.
You have to start this program as the user who owns the database cluster or as root.
To ease integration with systemd operation, the alternative syntax "pg_ctlcluster
version-cluster action" is also supported.
ACTIONS
start
A log file for this specific cluster is created if it does not exist yet (by default,
/var/log/postgresql/postgresql-cluster-version-cluster-name.log), and a PostreSQL
server process (postgres(1)) is started on it. Exits with 0 on success, with 2 if the
server is already running, and with 1 on other failure conditions.
stop
Stops the postgres(1) server of the given cluster. By default, "smart" shutdown mode
is used, which waits until all clients disconnected.
restart
Stops the server if it is running and starts it (again).
reload
Causes the configuration files to be re-read without a full shutdown of the server.
status
Checks whether a server is running. If it is, the PID and the command line options
that were used to invoke it are displayed.
promote
Commands a running standby server to exit recovery and begin read-write operations.
OPTIONS
-f|--force
For stop and restart, the "fast" mode is used which rolls back all active
transactions, disconnects clients immediately and thus shuts down cleanly. If that
does not work, shutdown is attempted again in "immediate" mode, which can leave the
cluster in an inconsistent state and thus will lead to a recovery run at the next
start. If this still does not help, the postgres process is killed. Exits with 0 on
success, with 2 if the server is not running, and with 1 on other failure conditions.
This mode should only be used when the machine is about to be shut down.
-m|--mode [smart|fast|immediate]
Shutdown mode to use for stop and restart actions, default is smart. See pg_ctl(1)
for documentation.
--foreground
Start postgres in foreground, without daemonizing via pg_ctl.
--stdlog
When --foreground is in use, redirect stderr to the standard logfile in
/var/log/postgresql/. (Default when not run in foreground.)
--bindir directory
Path to pg_ctl. (Default is /usr/lib/postgresql/version/bin.)
-o|--options option
Pass given option as command line option to the postgres process. It is possible to
specify -o multiple times. See postgres(1) for a description of valid options.
pg_ctl options
Pass given pg_ctl options as command line options to pg_ctl. See pg_ctl(1) for a
description of valid options.
Use pg_ctlcluster online using onworks.net services