The secondary node is promoted to primary if the clustering solution detects that the primary node is down.

如果集群解决方案检测到主节点故障，辅助节点升为主节点。

youdao

One of the servers is commonly defined as the primary and the other secondary (typically as part of a clustering solution).

其中一个服务器被定义为主服务器，另一个是辅助服务器(通常是集群解决方案的一部分)。

youdao

Although relatively young in open source terms, Mahout already has a large amount of functionality, especially in relation to clustering and CF. Mahout's primary features are.

虽然在开源领域中相对较为年轻，但Mahout已经提供了大量功能，特别是在集群和CF方面。

youdao

The primary draw of the Hamptons is its spectacular beaches backed by fabulous homes, picket-fenced wild dunes and clustering gulls.

BBC: Visiting the Hamptons off season