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.

        Note
        If the parameter contains uppercase letters (e.g. delegate_IP), the parameter name must be enclosed in double quotes.

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.

    watchdog
        Configuration group of all watchdog node config parameters.

    heartbeat
        configuration group of all watchdog heartbeat 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.
    hostname0                | localhost               | Hostname of 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