PGPOOL SHOW

Name

PGPOOL SHOW -- show the value of a configuration parameter

Synopsis

   PGPOOL SHOW configuration_parameter
   PGPOOL SHOW configuration_parameter_group
   PGPOOL SHOW ALL
  

Description

PGPOOL SHOW will display the current value of Pgpool-II configuration parameters. This command is similar to the SHOW command in PostgreSQL with an addition of PGPOOL keyword to distinguish it from the PostgreSQL SHOW command.

Parameters

configuration_parameter

The name of a Pgpool-II configuration parameter. Available parameters are documented in Chapter 5

configuration_parameter_group

The name of the Pgpool-II configuration parameter group. Currently there are three parameter groups.

backend

Configuration group of all backend config parameters.

other_pgpool

Configuration group of all watchdog node config parameters.

heartbeat

configuration group of all watchdog heartbeat node config parameters.

health_check

configuration group of all health check parameters.

ALL

Show the values of all configuration parameters, with descriptions.

Examples

Show the current setting of the parameter port:

     PGPOOL SHOW port;
     port
     ------
     9999
     (1 row)
    

Show the current setting of the parameter write_function_list:

     PGPOOL SHOW write_function_list;
     write_function_list
     ---------------------
     nextval,setval
     (1 row)
    

Show the current settings of all the configuration parameters belonging to backend group:

    PGPOOL SHOW backend;
    item                     |          value          |              description
    -------------------------+-------------------------+-----------------------------------------------------------
    backend_hostname0        | 127.0.0.1               | hostname or IP address of PostgreSQL backend.
    backend_port0            | 5434                    | port number of PostgreSQL backend.
    backend_weight0          | 0                       | load balance weight of backend.
    backend_data_directory0  | /var/lib/pgsql/data     | data directory of the backend.
    backend_flag0            | ALLOW_TO_FAILOVER       | Controls various backend behavior.
    backend_hostname1        | 127.0.0.1               | hostname or IP address of PostgreSQL backend.
    backend_port1            | 5432                    | port number of PostgreSQL backend.
    backend_weight1          | 1                       | load balance weight of backend.
    backend_data_directory1  | /home/work/installed/pg | data directory of the backend.
    backend_flag1            | ALLOW_TO_FAILOVER       | Controls various backend behavior.
    (10 rows)
   

Show all settings:

    PGPOOL SHOW ALL;
    item                     |          value          |              description
    -------------------------+-------------------------+-----------------------------------------------------------
    backend_hostname0        | 127.0.0.1               | hostname or IP address of PostgreSQL backend.
    backend_port0            | 5434                    | port number of PostgreSQL backend.
    backend_weight0          | 0                       | load balance weight of backend.
    backend_data_directory0  | /var/lib/pgsql/data     | data directory of the backend.
    backend_flag0            | ALLOW_TO_FAILOVER       | Controls various backend behavior.
    backend_hostname1        | 127.0.0.1               | hostname or IP address of PostgreSQL backend.
    backend_port1            | 5432                    | port number of PostgreSQL backend.
    backend_weight1          | 1                       | load balance weight of backend.
    backend_data_directory1  | /home/work/installed/pg | data directory of the backend.
    backend_flag1            | ALLOW_TO_FAILOVER       | Controls various backend behavior.
    other_pgpool_hostname0   | localhost               | Hostname of other pgpool node for watchdog connection.
    .
    .
    .
    ssl                      | off                     | Enables SSL support for frontend and backend connections
    (138 rows)

   

See Also

PGPOOL SET