In traditional Web application development, server response time is the primary focus for performance analysis.
在传统的Web应用程序开发中，服务器响应时间是性能分析的主要重点。
Lag time: the time the secondary server requires to confirm communication from the primary server.
Lagtime：备份服务器确认来自主服务器的通信所需的时间。
If the primary server is unavailable, but the client still has network connectivity, you want to fail over to a secondary server as opposed to using system time.
如果主服务器不可用，但客户机尚具有网络连接，就需要故障转换到备用服务器，而不是使用系统时间。
At the same time, the primary server will not proceed on to the next log flush until it receives notification that the standby has written the log.
同时，主服务器在得知备用服务器已经写入了日志之后，才继续进行下一次日志刷新。
This time, log in by using the Primary administrative user name (Server user ID) that you entered previously in the WebSphere Application Server configuration section.
这时，通过使用您之前在WebSphere应用程序服务器配置一章中输入的主管理用户名(服务器用户ID)进行登录。
It will only trigger on accounts that server is the primary node for, so that multiple account servers aren't all trying to do the same work at the same time.
它仅会在当前服务器为主节点的账号上触发，因此多个账号服务器并不都尝试着在相同时间内做相同的工作。
Practical measurements result shows that secondary time server are better than primary ones from the perspectives of network delay.
实际测量结果表明，在网络延迟方面，二级时间服务器要优于一级时间服务器。
Practical measurements result shows that secondary time server are better than primary ones from the perspectives of network delay.
实际测量结果表明，在网络延迟方面，二级时间服务器要优于一级时间服务器。
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