Most business programmers cannot justify the time it takes to write their own datasource and connection pool code plus implement a naming server so the JDBC SPI can be used.
大多数业务程序员都不愿意，为了使用JDBCSPI而编写他们自己的数据源和连接池代码，并实现一个命名的服务器。
The Amazon EC2 service, which was in beta at the time of this writing, allows you to use the compute power of Amazon's server pool in an on-demand fashion.
AmazonEC2服务，在写作本文时还处于测试阶段，它允许以一种随需应变的方式使用Amazon服务器池的计算功能。
Creating a pool, setting minimum and maximum connections, and specifying time-out limits for connections are activities performed by Application Server administrators.
创建池、设置最小和最大连接，以及指定连接的超时限制都是由ApplicationServer管理员执行的操作。
The next time the connection is retrieved from the pool used, the reset connection request piggybacks on the first round trip to the server and executes before the user performs any operations.
在下次从使用的池中检索该连接时，将在第一次到服务器的往返行程中发出重置连接请求，并将在用户执行任何操作之前执行该请求。
The next time the connection is retrieved from the pool used, the reset connection request piggybacks on the first round trip to the server and executes before the user performs any operations.
在下次从使用的池中检索该连接时，将在第一次到服务器的往返行程中发出重置连接请求，并将在用户执行任何操作之前执行该请求。
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