pgpool_adm_pcp_node_info

Name

pgpool_adm_pcp_node_info --  a function to display the information on the given node ID

Synopsis

pcp_node_info returns record(integer node_id, text host, integer port, text username, text password, out status text, out weight float4, out role text, out replication_delay bigint, out replication_state text, out replication_sync_state text, out last_status_change timestamp);

pcp_node_info returns record(integer node_id, text pcp_server, out status text, out weight float4, out role text, out replication_delay bigint, out replication_state text, out replication_sync_state text, out last_status_change timestamp);

Description

pcp_node_info displays the information on the given node ID.

Arguments

node_id

The index of backend node to get information of.

pcp_server

The foreign server name for pcp server.

Other arguments

See pcp_common_options.

Example

Here is an example output:

    test=# SELECT * FROM pcp_node_info(1,'',11001,'t-ishii','t-ishii');
    host | port  |      status       | weight |  role   | replication_delay | replication_state | replication_sync_state | last_status_change  
    ------+-------+-------------------+--------+---------+-------------------+-------------------+------------------------+---------------------
    /tmp | 11003 | Connection in use |     0.5 | Standby |                 0 | streaming         | async                  | 2019-04-23 15:02:46
    (1 row)
   

Note: role, replication_delay, last_status_change out parameters are new from Pgpool-II 4.0. If you have already installed pre-4.0 pgpool_adm extension, you can upgrade to the new one by using ALTER EXTENSION SQL command.

     ALTER EXTENSION pgpool_adm UPDATE;
    

Note: replication_state and replication_sync_state out parameters are new from Pgpool-II 4.1. If you have already installed pre-4.1 pgpool_adm extension, you can upgrade to the new one by using ALTER EXTENSION SQL command.

     ALTER EXTENSION pgpool_adm UPDATE;