The index of backend node to get information of.
See pcp_common_options.
Here is an example output:
$ pcp_node_info -h localhost -U postgres 0
host1 5432 1 1073741823.500000
The result is in the following order:
1. hostname 2. port number 3. status 4. load balance weight
Status is represented by a digit from [0 to 3].
0 - This state is only used during the initialization. PCP will never display it.
1 - Node is up. No connections yet.
2 - Node is up. Connections are pooled.
3 - Node is down.
The load balance weight is displayed in normalized format.
The --verbose option can help understand the output. For example:
$ pcp_node_info --verbose -h localhost -U postgres 0
Hostname: host1
Port : 5432
Status : 1
Weight : 0.5