Scala 查询-连接池似乎不起作用

我们有这个对象，从中获取queryEvaluator

object MyDataSource {
    val queryFactory = new SqlQueryFactory
    val apachePoolingDatabaseFactory = new ApachePoolingDatabaseFactory(
    "SELECT 1",
    10,
    10,
    new Duration(1000),
    new Duration(10),
    true,
    new Duration(30000))
    val queryEvaluatorFactory = new StandardQueryEvaluatorFactory(apachePoolingDatabaseFactory, queryFactory)
    val queryEvaluator = queryEvaluatorFactory(dbConfig.driverClassName, dbConfig.url, dbConfig.username, dbConfig.password)
}

我们没有显式地关闭连接，假设它已被处理。我们的MySQL数据库上的连接似乎快用完了

我们正在使用以下依赖项

libraryDependencies += "com.twitter" % "querulous" % "1.2.0-generic"

libraryDependencies += "mysql" % "mysql-connector-java" % "5.1.12"