On Oct 14, 2010, at 12:58 PM, Null Ecksor wrote: > 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.
I've added this to the FAQ: http://wiki.apache.org/hadoop/FAQ#If_the_NameNode_loses_its_only_copy_of_the_fsimage_file.2C_can_the_file_system_be_recovered_from_the_DataNodes.3F
