Display all child processes and their available connection slots.
PID of Pgpool-II child process.
See pcp_common_options.
If -a nor -P is not specified, process information of all connected Pgpool-II child process will be printed. In this case if there's no connected Pgpool-II child process, nothing but "No process information available" message will be printed.
Here is an example output:
$ pcp_proc_info -p 11001 1406
test t-ishii 2018-07-09 16:43:53 2018-07-09 16:44:08 3 0 1 1435 1 1406 0
test t-ishii 2018-07-09 16:43:53 2018-07-09 16:44:08 3 0 1 1436 1 1406 1
The result is in the following order:
1. connected database name
2. connected user name
3. process start-up timestamp
4. connection created timestamp
5. protocol major version
6. protocol minor version
7. connection-reuse counter
8. PostgreSQL backend process id
9. 1 if frontend conncted 0 if not
10. pgpool child process id
11. PostgreSQL backend id
If -a or --all option is not specified and there is no connection to the backends, nothing will be displayed. If there are multiple connections, one connection's information will be displayed on each line multiple times. Timestamps are displayed in EPOCH format.
The --verbose option can help understand the output. For example:
$ pcp_proc_info -p 11001 --verbose 1406 Database : test Username : t-ishii Start time : 2018-07-09 16:43:53 Creation time: 2018-07-09 16:44:08 Major : 3 Minor : 0 Counter : 1 Backend PID : 1435 Connected : 1 PID : 1406 Backend ID : 0 Database : test Username : t-ishii Start time : 2018-07-09 16:43:53 Creation time: 2018-07-09 16:44:08 Major : 3 Minor : 0 Counter : 1 Backend PID : 1436 Connected : 1 PID : 1406 Backend ID : 1