重复前面初始化主节点的前三个步骤。
Repeat the first three steps above for initializing the master node.
在主节点上安装db2。
对主节点使用puttyto ssh。
其最重要的功能之一就是该协议无需主节点。
One of its most important features is that it does not have a master node.
中间一列应该是主节点的主机名。
The middle column should be the hostname of the primary node.
主节点应该同时接管群集IP。
停止主节点上的ND部署管理器。
移除主节点上的服务ip地址。
每个节点都有且只有一个主节点类型。
主节点收集结果,并继续分发任务,依此类推。
The master node assembles the results, further distributes work, and so on.
补充操作在主节点恢复时退回主节点。
The complementary action is to failback when the primary node is recovered.
在典型的设置中,应用程序在主节点上开始运行。
In a typical setup, the master node is where the applications are initiated.
将目录与文件从主节点复制到克隆节点。
Copy directories and files from main node to the clone node.
该云架构有一个主节点和一些从属节点。
访问以下url,确认主节点和从节点是正常的。
Visit the following URL to verify that the master and other slave nodes are healthy.
主节点也会接管集群IP。
在主节点发生故障时,冗余节点可以接管。
Upon failure of the primary node the redundant node takes over.
这个节点不必是主节点。
返回到MachineB(主节点)来创建克隆。
同时,可以对主节点进行维护,分析它为什么会宕机。
Meanwhile, maintenance can be performed on the master node to analyze why it went down.
命令输出指出主节点和从节点上的一些日志。
The command output indicates some logs located on the master and slaves.
选择主选项会安装一个主节点并创建一个集群。
Selecting the primary option installs a primary node and creates a cluster.
重新启动主节点上的heartbeat服务。
注意,在上面我使用的是群集地址,而不是主节点的地址。
Note that I am using the cluster address in the above URLs and not the address of the primary node.
行5继续定义主节点和当前节点之间的边的属性。
Line 5 proceeds with defining the attributes of the edge between the home node and the current node.
向下扩展就像退回操作,其中没有将主节点置于在线的任务。
Scaling down is like a failback operation without the task of bringing the primary node up.
主节点负责根据需要将应用程序迁移到从属节点上。
It's the master node's responsibility to migrate applications to the drones when required.
工作者节点处理这些小任务,把结果返回给主节点。
The worker node processes that smaller task, and passes the answer back to the master node.
重新在主节点上启动heartbeat服务。
原因在于,次节点上的副本仍然指向主节点的存储库。
The reason is that the copy on the secondary node is still pointing to the repository of the primary node.
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