namenode
基本解釋
- n.名字節(jié)點(diǎn)
英漢例句
- The Datanodes also perform block creation, deletion, and replication upon instruction from the Namenode.
數(shù)據(jù)節(jié)點(diǎn)執(zhí)行來自于名字節(jié)點(diǎn)的建立、刪除、復(fù)制指令. - dfs.secondary.http.address :The secondary namenode http server address and port.
如果port為0,則端口就會(huì)使用隨機(jī)的可用port。 - 1.Replication of data blocks does not occur when the NameNode is in the Safemode state.
并不是全部檢測完才退出安全模式,而是達(dá)到一個(gè)配置的比例的時(shí)候。