Hi, I have a small doubt regarding Hadoop. For a cluster without secondary namenode, a namenode reboots itself after failure.
For a scenario,when a namenode reboots itself, and looses all the namespace information-- Does the namenode starts a fresh and gather all the namespace information again from the datanodes? I want to know if at all it looses the info written on the disk, is it able to obtain the same from the datanodes in the cluster. Thanks, RJ