what is the use of the pool option in database.yml

Question

Most widely used options in database.yml are of following :

adapter
encoding
database
pool
username
password
socket
host
port
timeout

I know th

Answer 1

pool is the config of size of connection pool, which is 5 by default.

http://api.rubyonrails.org/classes/ActiveRecord/ConnectionAdapters/ConnectionPool.html