pg_controldata
displays PostgreSQL cluster control information
TLDR
Show cluster control data
$ pg_controldata [data_dir]
Show with PGDATA environment$ pg_controldata
SYNOPSIS
pg_controldata [option] [-D] datadir
DESCRIPTION
pg_controldata displays PostgreSQL cluster control information. Shows WAL position, checkpoint info, and database state. Useful for disaster recovery and debugging.
PARAMETERS
-D, --pgdata dir
Data directory.
INSTALL
sudo dnf install postgresql17
sudo apk add postgresql17
sudo zypper install postgresql17
SEE ALSO
pg_resetwal(1), pg_rewind(1)