引入对Walrus的文件锁定。
参见解除文件锁定功能了解更多相关信息。
See Disabling file locking for more information on this topic.
文件锁定状态和错误。
文件锁定——通过网络获取文件排它锁定的过程。
File locking - The process of obtaining an exclusive lock on a file over a network.
使用文件锁定确保对组成恢复日志的文件的排它访问。
File locking is used to ensure exclusive access to the files that make up a recovery log.
代码实现了Eucalyptus中的文件锁定机制。
The code implements the file locking mechanism in Eucalyptus.
您可以改变文件锁定，也可忽略并继续操作。
You can override this file lock, or continue without doing so.
文件锁定PRO是完美的伴侣，任何一台PC。
服务器P在主机p上运行，且对其恢复日志文件持有排它文件锁定。
Server P is running on host P and holds an exclusive file lock for its own recovery log files.
自动对等恢复需要排它文件锁定的使用和保证来确保事务的数据完整性。
Automatic peer recovery does require the use and guarantee of exclusive file locks to ensure transactional data integrity.
所有用户都能同时在文件内进行工作，而不需要进行文件锁定。
All users can work on the file simultaneously, without the need to lock it.
文件锁定支持的重构让服务器可以用基于租约的模型来保持文件的锁状态。
The restructuring of file locking support allows the server to maintain the lock state of files using a lease-based model.
管理人员可能遇到的一个潜在缺陷是CVS内缺乏文件锁定功能。
One potential drawback that management can point to is the lack of file locking within CVS.
如果不改变文件锁定，您将不能保存这个文件，但可以另存为其他文件。
If you continue without overriding this lock, you will not be able to save to this file, but you can use file save As to save your work to a different file.
不仅将文件锁定此敏感文件加密它也可以完全隐藏或限制访问您的文件。
Not only will file Lock PRO encrypt your sensitive files it can also completely hide and restrict access to your files.
该文件系统支持排它文件锁定，但是将代表故障主机持有锁定直至主机能够重新启动为止。
This file system supports exclusive file locks, but holds them on behalf of a failed host until that host can restart.
定时启动和配置文件锁定规则是一个例外，并有最高优先事项，这不能改变的。
Timed activation and profile lock rules are an exception and have the topmost priority, which cannot be changed.
事务服务的ha功能使用网络文件锁定，且不同的文件系统有不同的文件锁定操作。
The ha function for the transaction service USES network file locking, and different file systems have different file locking behaviors.
因为我的设计目标是只针对一个并发用户，我觉得可以省略许多似乎不必要的文件锁定代码。
Because I designed it for a maximum of one simultaneous user, I felt I could dispense with a lot of the file-locking code that might otherwise be necessary.
关于排它文件锁定，不同文件系统有不同的性能来支持。并且这些锁定在客户端发生故障或无法响应时无效。
Different file systems have different capabilities with respect to support for exclusive file locks and the ability of those locks to become invalidated when a client fails or becomes unresponsive.
解除文件锁定功能部分将讲述解除文件锁定功能产生的影响以及当通过自动对等恢复使用NFSv3时，如何配置该功能。
The disabling file locking section contains a discussion of the effect of disabling locking and how to configure this functionality when NFSv3 is used with automatically initiated peer recovery.
学习如何修改walrus源代码，以及如何重编译及运行，以改进Eucalyptus环境中的文件共享和文件锁定机制。
Learn how to modify the Walrus source code, and how to recompile and run it, in order to improve the file-sharing and file-locking mechanisms in the Eucalyptus environment.
要保持恢复日志文件的完整性，一次只能允许单个客户端流程对其进行访问。 通过使用先前讨论到的排它网络文件锁定来确保访问的进行。
To maintain the integrity of a recovery log file, only a single client process can access the log at a time; this access can be assured using the exclusive network file locks discussed previously.
要避免这样的危险发生，WebSphereApplicationServer使用网络文件锁定技术来确保对恢复日志文件的排它访问。
To prevent such problems from occurring, WebSphere Application Server USES network file locking technology to ensure exclusive access to recovery log files.
使用单个文件可能会存在一些问题，特别是在多用户的系统中，因为在使用单个、较大的文件时，可能会出现与其相关联的文件锁定和性能问题。
Using a single file is problematic, especially in a multi-user system because of issues of file locking and the performance problems associated with working with a single, large file.
现在您已了解如何在集群中安装Eucalyptus，以及如何修改Walrus源代码来实现或改进云中的文件共享和文件锁定机制。
Now you know how to install Eucalyptus in a cluster and how to modify the Walrus source code to implement or improve the file-sharing and file-locking mechanism on the cloud.
此外，这个新版本的NFS协议支持字节范围的文件锁定，而先前版本使用的是网络锁管理器(Net work lock Manager)提供的lockd协议。
In addition, this new version of the NFS protocol supports byte range file locking, whereas previous versions used the lockd protocol provided by the Network lock Manager.
客户端采用状态来确定操作是否可执行(那就是，文件是否被锁定)。
The client USES the state to determine whether the operation can be performed (that is, whether the file is locked).
这种分离也意味着他们能够全速工作，不用锁定文件或者互相等待。
The decoupling also means they can work at full speed without locking files or having to wait for each other.
这种分离也意味着他们能够全速工作，不用锁定文件或者互相等待。
The decoupling also means they can work at full speed without locking files or having to wait for each other.
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