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?
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 <[EMAIL PROTECTED]> wrote:
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