Drop Down MenusCSS Drop Down MenuPure CSS Dropdown Menu

If somebody removed postmaster.pid file In postgreSql what will happened in postgres server ?

If somebody removed postmaster.pid file Server will be going to down becouse postgres server running based on postmaster.pid file so you need to start the server manually  after started the postgres server posmaster.pid file will be created automatically
[root@p1 data]# pwd
root@p1 data]# mv postmaster.pid  /home/
mv: overwrite `/home/postmaster.pid'? y

bash-3.2$ pg_ctl -D /opt/PostgreSQL/9.3/data/ status
pg_ctl: no server running

after started the postgres server postmaster process id will be varried see below example first one is old postmaster.pid file next is new postmaster.pid file
Old Postmaster.pid file:
[root@p1 home]# cat postmaster.pid 
  5432001   3932161
New Postmaster.pid file After started postgres server:
[root@p1 data]# cat postmaster.pid
  5432001   3964929


Popular posts from this blog

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

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

7 Steps to configure BDR replication in postgresql

Postgres Streaming Replication Configuration

vacuumlo - removing large objects orphans from a database PostgreSQL