在没有其他用户连接到数据库服务器的情况下，使用这种模式可以执行任何维护任务，包括执行SQL和ddl语句所需要的任务。
Use this mode to perform any maintenance task, including tasks requiring the execution of SQL and DDL statements, when no other users are connected to the database server.
主要原因是除非使用像连接传递这样的技术，否则您不能维护传统的ACID事务属性。
The main reason is that unless you use a technique such as connection passing, you cannot maintain traditional ACID transaction properties.
为了维护这种持久性，应用程序组件必须能够处理并发性、连接管理、数据完整性和同步。
To maintain this type of persistence, application components must be capable of handling concurrency, connection management, data integrity, and synchronization.
缺省情况下，池维护的线程每180秒(3分钟)运行一次，但是通过设置连接池获得时间属性可以更改此值。
By default, the pool maintained thread runs every 180 seconds (3 minutes), although this value can be changed by setting the connection pool Reap time property.
CLP包括前端进程(表示用户界面)和后端进程，可以用它们来维护数据库连接。
The CLP includes both a front-end process (representing the user interface) and a back-end process to maintain a database connection.
客户端总是维护与服务器的连接。
此示例显示了维护线程如何使用获得时间和未使用超时属性防止连接过时。
This example has shown how the maintenance thread USES the Reap time and Unused timeout properties to prevent stale connections.
此规则的意图是，引导用户采用最佳实践：即尽可能减少所需维护的连接。
The intent behind this rule is to guide users toward the best practice of minimizing connections that need to be maintained.
另外，如果企业要开发和维护到建模系统的定制连接，系统就必须提供具有良好文档的API和完整的SDK。
Additionally, if custom connections to the modeling system are to be developed and maintained by the enterprise, the system must have well-documented APIs and a comprehensive SDK.
通过将获得时间属性设置为0，可以禁用个别空闲连接池的池维护线程。
You can disable the pool maintenance thread for an individual free connection pool by setting its Reap time property to 0.
正如您看到的，池维护线程在“醒来”时会执行许多工作，尤其是在连接工厂的空闲池中存在大量的连接时。
As you can see, the pool maintenance thread does a lot of work when it "wakes up," particularly if there are a large number of connections in the connection factory's free pool.
例如，操作系统为每个TCP连接维护TCP发送队列。
For example, the operating system maintains the TCP send queue for each TCP connection.
如果空闲池有许多连接，则维护线程需要执行许多工作，这会显著地影响性能。
If the free pools have lots of connections, the maintenance threads will have a lot of work to do, which can significantly impact performance.
因此，维护线程保留该连接。
Therefore the maintenance thread leaves the connection alone.
指定维护空闲数据源连接以便进行重用的秒数。
Specifies the number of seconds to maintain an idle data source connection for re-use.
使用异步交换能够避免失去连接(因为服务器维护等等)以及因此而失去响应的风险。
Using an asynchronous exchange avoids the risk of losing the connection (because of server maintenance and so on) and, thus, the response.
它能在高可用性集群的服务器停机时维护用户连接。
It can service the user connections while the servers of the high availability cluster are brought down.
数据完整性是在安全的网络连接上异步地维护的。
Data integrity is maintained asynchronously over secure network connections.
然而在SCA中，一个应用中的服务可能连接到另一个应用中的服务，维护运行时的一致性就颇具挑战了。
However, in SCA, where services in one application may be wired to services in another application, maintaining runtime consistency is challenging.
在IIce端的用户希望只登录一次连接器，因此连接器就必须进行额外的工作来维护跨每一个集合的多个会话。
Users on the II ce side will expect to log into the connector only once, so our connector would have to do the extra work of maintaining multiple sessions across each collection.
我们能够在客户机上维护简单的状态，也能够在服务器上维护详细的复杂状态，所缺少的是它们之间的连接。
With a collection of ways to maintain simple state on the client, and a collection of ways to maintain detailed and complicated state on the server, what is missing is a connection between them.
它连接了伦敦和整个世界，同时也是英航的要塞，维护了英航利润丰厚的跨大西洋航线。
It connects the City of London to the rest of the world. It is the fortress that guards the lucrative transatlantic business of British Airways (BA).
如果池维护线程确定需要丢弃空闲池中的连接，则它物理关闭到JMS提供程序的连接。
If the pool maintenance thread decides that a connection in the free pool needs to be discarded, it physically closes the connection to the JMS provider.
quiesce数据库让数据库进入维护模式，不允许应用程序连接它。
Quiesce database is to put database in maintenance mode with no application connected to it.
通过使用较少的数据中介服务和较少的数据源连接减少设计、开发和维护的复杂性。
Reduce design, development, and maintenance complexity by employing fewer data mediator services and fewer data source connections.
每一个有效的连接维护一个会话池，会话池也可通过ConnectionFactory的属性进行优化。
Each live connection maintains a session pool, which is also tunable via the ConnectionFactory's properties.
这些连接不局限于LotusScript的作用域，实际上在进程级别上维护。
These connections are not bound by the scope of LotusScript. They are actually maintained at the process level.
Hydra可以连接到任意多网络上的任意多服务器，它还可以维护多重用户身份。
Hydra can connect to as many servers on as many different networks as you wish and is able to maintain multiple user identities.
池维护线程的行为由连接池的四个属性值确定。
The behaviour of the pool maintenance thread is determined by the value of four properties of the connection pool.
通过与互联网连接，MicroFueler在任何需要更多原料或需要维护的时候自动呼叫GreenHouse公司。
With its Internet connection, the MicroFueler calls GreenHouse automatically whenever it needs more feedstock or maintenance.
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