Hello list
I use OpenJPA with Apache DBCP in Java SE environment.
My problem is the performance when prepared statement pooling is enabled
in DBCP - it is the same as when statement pooling is disabled.
My question is - why prepared statement pooling does not increase
performance on MySQL ?
BTW I made the same test with PostgreSQL and performance is better when
prepared statement pooling is enabled.
I use MySQL 5.0.51a and OpenJPA 1.2.0
it is the database configuration in my persistence.xml file.
<property name="openjpa.ConnectionProperties"
value="driverClassName=com.mysql.jdbc.Driver,
url=jdbc:mysql://localhost:3306/cms8?characterEncoding=UTF-8,
username=xxxxxxx,
password=xxxxxxx,
maxActive=100,
maxIdle=100,
initialSize=100,
poolPreparedStatements=true"/>
<property name="openjpa.ConnectionDriverName"
value="org.apache.commons.dbcp.BasicDataSource"/>
Best regards
Georgi
