有限的连接池。
When the application server starts up, the free connection pools are empty.
在应用服务器启动时，连接池是空的。
Most database vendors also implement their own JDBC 3.0-compliant connection pools.
大多数数据库厂商也实现了自己的兼容jdbc 3.0的连接池。
The important tunable options associated with connection pools are shown in Table 4.
与连接池相关的重要调优选项如表4所示。
It is common knowledge that you can gain a lot of performance benefits by using database connection pools.
众所周知，使用数据库连接池可以获得许多性能优势。
Implement connection pools to the database and reuse connection objects, rather than repeatedly opening and closing connections.
实现数据库连接池，重用连接对象，而不是重复地打开和关闭连接。
To connect to the database, the SQLLoginModule can be configured to either use JDBC directly, or use the connection pools in Community Edition.
要连接到该数据库，可以将SQLLoginModule配置为直接使用JDBC，或者使用CommunityEdition中的连接池。
In general, a large number of applications will realize some improvement from tuning in three core areas: the JVM, thread pools, and connection pools.
通常而言，许多应用程序都可以通过调优以下三个核心区域实现一定程度的性能改进：J VM、线程池和连接池。
A reasonable, efficient design and realization scheme for database connection pools was presented, which is based on the analysis of database connections.
在对数据库连接进行分析的基础上，提出了一种合理、有效的数据库连接池的设计与实现方案。
Finally, in the case of connection pools associated with JCA resource adapters, it is in fact possible to use a different thread pool for different resource adapters.
最后，对于与JCA资源适配器相关联的连接池，事实上可以对不同的资源适配器使用不同的线程池。
In the meantime, a client can be configured to connect to many servers, organized in a hierarchy of server connection pools that defines an effective failover strategy.
同时，一个客户端可以配置多个可连接的服务器，通过将这些服务器组织成一个层次结构来定义一个有效的故障转移策略。
For example, connections to a JDBC-backed database are pooled via the JDBC datasource that is used; JMS and other J2C connection pools are defined through the activation specification.
例如，到一个JDBC支持的数据库的连接通过使用的JDBC数据源定义连接池；JMS和其他J2C连接池通过激活规范定义。
The fact that you have resource managers that manage your connection pools does not guarantee optimum performance from the EJB layer — there are some design considerations as well!
尽管有了管理连接池的资源管理器，但是还不能保证ejb层具有最优性能——还有一些设计考虑事项！
This begins at a rather fine-grained level: configurations that ensure queues are not reused across solutions, or configurations that ensure separate connection pools are used between solutions.
可以从一个相当精细的级别开始：确保查询不会跨解决方案重用的配置，或者确保在解决方案之间使用分隔的连接池的配置。
As defined in the Sun JDBC 2.0 Standard Extension specification, data sources allow you to manage a pool of connections to a database. Using connection pools gives you with the following advantages.
根据SunJDBC 2.0StandardExtension规范中的定义，数据源允许您管理数据库的一个连接池。
The fact that olap4j is literally an extension to JDBC means that you can use infrastructure like connection pools and directory services for olap4j connections just as you would for JDBC connections.
olap4 j差不多可以说是JDBC的扩展，实际上这意味着你可以为olap4 j连接使用连接池、目录服务等基础设施，就像供jdbc连接使用的一样。
A similar consideration exists with pools of managed connections: a (transactional) connection will not return to the pool until the batch (and its transaction) is completed.
对于托管连接池，需要进行类似的考虑：在批(及其事务)完成之前，(事务)连接将不返回到池。
A particular case is JMS connection and session objects and their associated pools.
具体的例子就是JMS连接和会话对象及其相关池。
For databases, try using the database Pools - Geronimo database pool wizard in the administrative console to test the database connection.
对于数据库，尝试在管理控制台中使用databasePools-Geronimo databasepoolwizard来测试数据库连接。
Needless to say you can find plenty of connection pool tuning techniques on the web. Accordingly we will only mention common tuning parameters that are Shared by most pools.
不用多说，你在网上能找到很多关于连接池调优的技术，因此我们只讨论那些大多数连接池所共有的通用调优参数。
Overall, the general best practice is to determine which thread pools service tasks that require a DataSource connection and to size the pools accordingly.
总的来说，通用的最佳实践是确定哪些线程池服务任务需要DataSource连接并相应调节池的大小。
The Connection and session pool panels can be used to change the default settings of the pools that are used to manage the connection and session objects created from a particular connection factory.
可以使用Connectionandsessionpool面板更改池的缺省设置，这些池用于管理从特定连接工厂创建的连接和会话对象。
On the last page of the database Pools wizard, click on Test connection to ensure the connection information is correct and connection to your DB2 Sample database can be established.
在DatabasePools向导的最后一个页面中，单击TestConnection以确保连接信息是正确的并且可以建立与DB 2Sample数据库的连接。
On the last page of the database Pools wizard, click on Test connection to ensure the connection information is correct and connection to your DB2 Sample database can be established.
在DatabasePools向导的最后一个页面中，单击TestConnection以确保连接信息是正确的并且可以建立与DB 2Sample数据库的连接。
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