What do the different computers do in a MySQL Cluster?
集群中的计算机都是干吗的？
Example of server groups are groups of NDBD nodes in a mysql cluster, groups of manager nodes in a mysql cluster, groups of jboss nodes in a jboss cluster, and so forth.
服务器组的示例包括mysql集群中的ndbd节点组、mysql集群中的manager节点组、jboss集群中的jboss节点组等等。
MySQL finds a wide variety of applications from embedded devices to cluster enterprise environments.
从嵌入式设备到集群企业环境，MySQL在很多种类的应用程序中得到了应用。
For example, a mysql-cluster-based database tier would be comprised of two server groups, an NDBD group and a manager group.
例如，基于mysql集群的数据库层可能包含两个服务器组，一个ndbd组和一个manager组。
For example, a mysql-cluster-based database tier would be comprised of two server groups, an NDBD group and a manager group.
例如，基于mysql集群的数据库层可能包含两个服务器组，一个ndbd组和一个manager组。
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