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From ch huang <justlo...@gmail.com>
Subject about hadoop upgrade
Date Mon, 19 May 2014 10:09:56 GMT
        i want to upgrade my cluster ,in doc,one of step is backup
namenode dfs.namenode.name.dir
directory,i have 2 directories defined in hdfs-site.xml,should i backup
them all ,or just one of them?


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