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From Harsh J <ha...@cloudera.com>
Subject Re: about hadoop upgrade
Date Mon, 19 May 2014 10:22:08 GMT
Backing up one of them is sufficient, but do check if both their
contents are same and backup the more recent one (a mount may lag
behind if it had a failure earlier, for ex.).

On Mon, May 19, 2014 at 3:39 PM, ch huang <justlooks@gmail.com> wrote:
> hi,maillist:
>         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?
>     <property>
>         <name>dfs.namenode.name.dir</name>
>         <value>file:///data/namespace/1,file:///data/namespace/2</value>
>     </property>

Harsh J

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