after I use the following command then I cannot relogin postgresql
alter system set shared_preload_libraries = 'pg_wait_sampling';
exit trying login again. Then error happens. The following is error code:
2022-03-15 11:35:30.726 IST [975] FATAL: could not access file "pg_wait_sampling": No such file or directory
2022-03-15 11:35:30.727 IST [975] LOG: database system is shut down
pg_ctl: could not start server
Examine the log output.
postgresql version: 14.2. system: wsl ubuntu.
in conf file /etc/postgresql/14/main/postgresql.conf":
#shared_preload_libraries='' #(change requires restart)
>Solution :
According to PostgreSQL document alter command store in postgresql.auto.conf file.
You have to change this file and remove pg_wait_sampling form this file