PGPOOL SHOW(1)

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[1] 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, Server Configuration, in the documentation

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 black_function_list:

         PGPOOL SHOW black_function_list;
         black_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 (PGPOOL_SET(1))

NOTES

1.
        SHOW
    https://www.postgresql.org/docs/current/static/sql-show.html