This document describes how to configure the number of idle connections in a connection pool.
In order to modify the number of idle connections in the connection pool of a JDBC data source, the following command can be executed from a VQL command line:
ALTER DATASOURCE JDBC <data source name>
VALIDATIONQUERY = 'SELECT COUNT(*) FROM SYS.DUAL'
INITIALSIZE = 15
MAXIDLE = 25
MINIDLE = 5
MAXACTIVE = 20
EXHAUSTEDACTION = 1
TESTONBORROW = false
TESTONRETURN = false
TESTWHILEIDLE = false
TIMEBETWEENEVICTION = 60000
NUMTESTPEREVICTION = 3
MINEVICTABLETIME = 120000;
In addition to the configuration options that are available from the graphical interface, more options can be set to the desired value using VQL. The meaning of the different properties can be seen in the documentation of Apache Commons Pool project.
To configure the number of idle connections the MAXIDLE and MINIDLE properties must be modified.