However, without a cluster manager, this "failover" is not automatic.
尽管如此，没有集群管理，“切换”就不能自动完成。
Another very important benefit of the ha feature is that it implements the cluster manager API.
ha特性的另一个非常重要的优点是，它实现了集群管理器api。
The clinfo process provides an API for communicating between cluster manager and your application.
clinfo进程提供用于在集群管理器和应用程序之间进行通信的API。
It is simple: The DBA does not need to learn a new set of cluster manager commands to manage resources.
它很简单：DBA不需要再学习新的集群管理器命令来管理资源。
The cluster manager needs to know when failover occurs to transfer that node's responsibilities to other nodes in the cluster.
集群管理器需要知道故障转移是在什么时候发生的，以便把相应节点的职责转移给集群中的其他节点。
The DB2 HA feature is a highly integrated implementation of TSA and the DB2 cluster manager application programming interface (API).
DB2HA特性是通过高度集成TSA和 DB2集群管理器应用程序编程接口（API）来实现的。
You'll revisit the cluster manager Web service, ensuring communication between the manager and the nodes and testing communication among the nodes.
您将再次使用集群管理器Web服务，确保管理器与节点之间的通信，并测试节点之间的通信。
In Part 4, "Starting and stopping the cluster," you'll add the ability to start a cluster based on its last saved state to the cluster manager Web service.
在第4部分“启动和停止集群”中，您将为集群管理器Web服务添加一项能力，使其能根据集群的最后保存状态启动集群。
Load balancing means that the cluster manager Web service knows how much of a load each node in the cluster is experiencing and balances the load accordingly.
负载均衡意味着集群管理器Web服务了解集群中的每个节点要承担多少负载，并相应地平衡负载。
Finally, you'll deploy and test the cluster as a whole on Geronimo, and you'll set up the cluster manager Web service and multiple nodes on multiple machines and test them.
最后，将在Geronimo上完整地部署并测试集群，还将设置集群管理器Web服务，设置多台机器上的多个节点，并测试它们。
The Cluster Manager tracks cluster membership and the status of all clustered servers.
Cluster Manager跟踪集群成员和所有集群服务器的状态。
Since the client is automatically cluster-enabled, it then accesses the Cluster Manager on an available server in the cluster.
因为客户机会自动启用集群，所以它可以访问集群中可用服务器上的Cluster Manager。
The second article focuses on performance tests of R5 clusters, including data on the Internet cluster Manager and cluster replication.
本系列的第二篇文章主要关注R5集群的性能测试，包括关于InternetCluster Manager和集群复制的数据。
The Cluster Manager then selects the least-busy server and returns the server name to the client, which can open the database on that server.
然后，Cluster Manager选择最不繁忙的服务器并将其名称返回给客户机，这样客户机就可以打开该服务器上的数据库。
The Cluster Manager then selects the least-busy server and returns the server name to the client, which can open the database on that server.
然后，Cluster Manager选择最不繁忙的服务器并将其名称返回给客户机，这样客户机就可以打开该服务器上的数据库。
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