如何实现异步？
And do you make good use of asynchrony?
再有，您很好地使用异步性了吗？
A detailed explanation of asynchrony in WFS.
对WFS中的异步的详细解释。
How much time is saved by the asynchrony in this plan?
在这个计划中，异步节省了多少时间呢？
But this approach doesn't use transport-level asynchrony.
但是此方法不使用传输级别的异步。
Expressing resource limitations and its effects on asynchrony.
表达资源限制及其对异步的影响。
This section will give you a clear idea of how asynchrony works.
本节将阐明异步的工作原理。
Processing of a UNION operator in WFS when asynchrony is disabled.
WFS中禁用异步时union操作符的处理。
Parameters to control resources consumed by asynchrony on the WFS system.
WFS上用于控制异步对资源的使用的参数。
The best way to understand the impact of asynchrony is through an example.
理解异步的影响的最好方式是通过示例。
This asynchrony can lead to significant improvements in query performance.
这种异步可以显著提高查询的性能。
A value of -1 means that the optimizer determines the degree of asynchrony.
若该选项值为- 1，则意味着优化器自行决定异步程度。
WFS provides two types of controls to limit the resource usage of asynchrony.
WFS提供了两种类型的控制来限制异步对资源的使用。
Finding out whether asynchrony optimization was applied to a particular query.
发现异步优化是否适用于特定的查询。
A parameter to control resources consumed by asynchrony at a given data source.
控制异步在给定数据源上对资源的使用的参数。
Federated asynchrony enables queries executed at remote servers to run concurrently.
联邦异步使远程服务器上执行的查询可以并发地运行。
Processing of the query when asynchrony is enabled is illustrated by the figure below.
下面的图中阐释了当启用异步时，查询的处理过程。
The ultimate aim of asynchrony is to reduce the execution time of the federated query.
异步的最终目的是减少联邦查询的执行时间。
The server option adds per-query limitations on asynchrony for individual data sources.
对于各个数据源，服务器选项在异步上增加每个查询的限制。
Processing of the query when asynchrony is disabled is illustrated by the figure below.
下面的图阐释了当禁用异步时对查询的处理。
It's actually not readily apparent where the asynchrony happens in this simple search box.
到目前为止，还不能明显看出这个简单的搜索框中哪里存在异步性。
The section thereafter summarizes the scope and impact of asynchrony in federated execution plans.
之后，本节将总结联邦执行计划中异步的适用范围和影响。
Besides providing asynchrony to the client side Apache Axis2 also provides asynchrony to the server side.
ApacheAxis2在为客户端提供了异步式交互的同时，还提供了服务器端的异步式交互。
This section briefly explains how asynchrony works, and illustrates the idea with two detailed examples.
本节简要地解释一下异步的工作原理，并用两个详细的示例阐述该思想。
The following prerequisites are required for asynchrony optimization to take place within federated queries.
要在联邦查询中使用异步优化，必须满足以下先决条件。
Thus, with asynchrony enabled, steps 2, 3 and 4 above are done concurrently for all the legs of the union.
因此，当启用异步时，对于UNION的所有分支，前面的步骤2、3、4是并发执行的。
The benefit of asynchrony is achieved by overlapping the execution of the queries at the remote data sources.
异步的优点是通过在远程数据源上重叠执行查询而取得的。
The circled green Numbers show the sequence of execution that would take place if asynchrony were not enabled.
绿色圆圈中的数字显示在不启用异步的情况下的执行顺序。
Execution plans with federated asynchrony are available only to partitioned (DPF-enabled) instances of WebSphere Federation Server.
含联邦异步的执行计划只适用于WebSphereFederationServer的分区(启用了DPF)实例。
For a description of the type of remote operations that benefit the most from asynchrony, see the Introduction section of this paper.
关于最能从异步中获益的远程操作类型的描述，请参阅本文的简介小节。
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