Hi, pg_terminate_backend and pg_cancel_backend with postmaster PID produce "PID XXXX is not a PostgresSQL server process" warning [1], which basically implies that the postmaster is not a PostgreSQL process at all. This is a bit misleading because the postmaster is the parent of all PostgreSQL processes. Should we improve the warning message if the given PID is postmasters' PID?
If yes, how about a generic message for both of the functions - "signalling postmaster process is not allowed" or "cannot signal postmaster process" or some other better suggestion? [1] 2471176 ---> is postmaster PID. postgres=# select pg_terminate_backend(2471176); WARNING: PID 2471176 is not a PostgreSQL server process pg_terminate_backend ---------------------- f (1 row) postgres=# select pg_cancel_backend(2471176); WARNING: PID 2471176 is not a PostgreSQL server process pg_cancel_backend ------------------- f (1 row) With Regards, Bharath Rupireddy. EnterpriseDB: http://www.enterprisedb.com
