Provided by: postgresql-common_154ubuntu1.1_all bug


       pg_ctlcluster - start/stop/restart/reload a PostgreSQL cluster


       pg_ctlcluster [options] cluster-version cluster-name action -- [pg_ctl options]

       where action = start|stop|restart|reload|promote


       This program controls the postmaster 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.


           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 (postmaster(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.

           Stops the postmaster(1) server of the given cluster. By default, "smart" shutdown mode
           is used, which waits until all clients disconnected.

           Stops the server if it is running and starts it (again).

           Causes the configuration files to be re-read without a full shutdown of the server.

           Commands a running standby server to exit recovery and begin read-write operations.


           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 postmaster 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.

       -o|--options option
           Pass given option as command line option to the postmaster process. It is possible to
           specify -o multiple times. See postmaster(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.


           This configuration file contains cluster specific options to be passed to pg_ctl(1).

           This configuration file controls the start/stop behavior of the cluster. See section
           "STARTUP CONTROL" in pg_createcluster(8) for details.


       pg_createcluster(8), pg_ctl(1), pg_wrapper(1), pg_lsclusters(1), postmaster(1)


       Martin Pitt <>