Grails MySQL MaxPoolSize

Question

使用mysql时如何在Grails中增加maxPoolSize？它似乎只使用默认连接池8个连接。

Answer 1

不幸的是，如果您希望获得对它的更多控制，您将需要自己配置dataSource spring bean。这可以通过在“grails-app / conf / spring / resources.groovy”

中定义bean来完成

beans = {

   dataSource(org.apache.commons.dbcp.BasicDataSource) {
      driverClassName = "com.mysql.jdbc.Driver"
      username = "someuser"
      password = "s3cret"
      initialSize = 15
      maxActive = 50
      maxIdle = 15
   }

}

它将覆盖在“grails-app / conf / DataSource.groovy”中配置的默认Grails数据源。

---

可能还应该使用PropertyOverrideConfigurer（在Config.groovy中）覆盖默认grails DataSource.groovy配置的池大小属性：

beans = {
   dataSource.initialSize = 15
   dataSource.maxActive = 50
   dataSource.maxIdle = 15
}

Answer 2

对于grails 1.2，您应该使用稍微不同的格式：

dataSource {
    pooled = true
    dbCreate = "update"
    url = "jdbc:mysql://localhost/yourDB"
    driverClassName = "com.mysql.jdbc.Driver"
    username = "yourUser"
    password = "yourPassword"
    properties {
        maxActive = 50
        maxIdle = 25
        minIdle = 5
        initialSize = 5
        minEvictableIdleTimeMillis = 60000
        timeBetweenEvictionRunsMillis = 60000
        maxWait = 10000     
    }   
}