DataSource.groovy

println("Configuring data sources")
dataSource {
    pooled = true
    driverClassName = "com.mysql.jdbc.Driver"
    dialect = "org.hibernate.dialect.MySQL5InnoDBDialect"
}
hibernate {
    cache.use_second_level_cache = true
    cache.use_query_cache = false
    cache.region.factory_class = 'net.sf.ehcache.hibernate.EhCacheRegionFactory'
    jdbc.factory_class = 'net.bull.javamelody.HibernateBatcherFactory'
}
// environment specific settings
environments {
    development {
        println("Configuring data sources for development environment")
        dataSource {
            println("Using disk-based H2 db")
            driverClassName = "org.h2.Driver"
            dialect = "org.hibernate.dialect.H2Dialect"
            username = "sa"
            password = ""
            url = "jdbc:h2:devDb;MVCC=TRUE;LOCK_TIMEOUT=10000"
        }
    }
    test {
        println("Configuring data sources for test environment")
        dataSource {
            username = "SET ME"
            password = "SET ME"
            url      = "SET ME"
        }
    }
    production {
        println("Configuring data sources for production environment")
        dataSource {
            username = "SET ME"
            password = "SET ME"
            url      = "SET ME"

            properties {
               maxActive = -1
               minEvictableIdleTimeMillis=1800000
               timeBetweenEvictionRunsMillis=1800000
               numTestsPerEvictionRun=3
               testOnBorrow=true
               testWhileIdle=true
               testOnReturn=true
               validationQuery="SELECT 1"
            }
        }
    }
}