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Posted to common-user@hadoop.apache.org by Y G <gy...@gmail.com> on 2009/11/13 03:13:56 UTC

hdfs disk space

Hi all

when i use command "hadoop dfsadmin -report", there are some terms that i
don't very understand,

   - what "DFS Used" mean?
   - what "Non DFS Used" mean?
   - when i delete all the subcontent of hdfs root,  the "DFS Used" still is
   "1.96MB" as well as "Non DFS Used" still takes almost xxGB per node , why?

thank you～～
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