When use poolConnection or CreateConnection felixge/node-mysql

Question

I use https://github.com/felixge/node-mysql for my application When and Why use

db_pool = mysql.createConnection(db);

or

db_p         


        

Answer 1

A single connection is blocking. While executing one query, it cannot execute others. Hence, your DB throughput may be reduced.

A pool manages many lazily-created (in felixge's module) connections. While one connection is busy running a query, others can be used to execute subsequent queries. This can result in an increase in application performance as it allows multiple queries to be run in parallel.