Drop Down MenusCSS Drop Down MenuPure CSS Dropdown Menu

How to find the server is whether standby (slave) or primary(master) in Postgresql replication ?

Method 1
You can check the mode of the server using "pg_controldata".
[pgsql@test~]$ pg_controldata /usr/local/pgsql/data84/

Database cluster state:               in archive recovery   --> This is Standby  Database

Database cluster state:               in production  --> This is Production Database [Master]

Method 2
You can use pg_is_in_recovery() which returns True if recovery is still in progress(so the server is running in standby mode or slave)
postgres=# select pg_is_in_recovery();
(1 row)
If Return  false so the server is running in primary mode or master
postgres=# select pg_is_in_recovery();
(1 row)


Popular posts from this blog

How to Get Table Size, Database Size, Indexes Size, schema Size, Tablespace Size, column Size in PostgreSQL Database

PostgreSQL Pgbadger Installation On Linux

PostgreSQL Database startup / shutdown /restart

ORA-01261: Parameter db_recovery_file_dest destination string cannot be translated ORA-01262: Stat failed on a file destination directory Linux-x86_64 Error: 2: No such file or directory

PostgreSQL pgBadger