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From Azuryy Yu <azury...@gmail.com>
Subject Re: HDFS - Consolidate 2 small volumes into 1 large volume
Date Wed, 22 Oct 2014 01:32:33 GMT
yes, you can.

stop the cluster,
change your hdfs-site.xml on your datanode. (dfs.datanode.dir) to the large
volume.
copy two small data volumes to the large volumes, which was configured on
above.
start cluster.

then you are done.

On Tue, Oct 21, 2014 at 9:57 PM, Brian C. Huffman <
bhuffman@etinternational.com> wrote:

> All,
>
> Is it possible to consolidate two small data volumes (500GB each) into a
> larger data volume (3TB)?
>
> I'm thinking that as long as the block file names and metadata are unique,
> then I should be able to shut down the datanode and use something like tar
> or rsync to copy the contents of each small volume to the large volume.
> Will that work?
>
> Thanks,
> Brian
>
>

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