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From Pradeep Gollakota <pradeep...@gmail.com>
Subject Re: Need to update dfs.data.dir in Data Nodes. Best approach ?
Date Tue, 22 Oct 2013 15:43:10 GMT
I think you want to use option 2. It preserves the data thats on those data

P.S: The Hadoop mailing list might be a better list to post this (type) of
question on. This is not really HBase specific.

On Tue, Oct 22, 2013 at 7:53 AM, satish <satishkoritala@gmail.com> wrote:

> Hi All,
> We have hbase 0.94 running with 6 slave nodes. I need to change the
> dfs.data.dir (Data Node Storage Path) on two of the data nodes. What is the
> cleanest  way to update the path. I googled and found two options
> 1. Remove the node from cluster (stop hbase region server, datanode,
> tasktracker) --> update the path in xml -->  add the node to the cluster
> 2. Remove the node (stop hbase region server, datanode, tasktracker)
> -->Copy
> the data manually from old dfs.data.dir to the new dfs.data.dir -->  Update
> the  path in xml  ---> add the node back to the cluster.
> which is cleanest option of above two. Is there any disadvantage of any of
> the approach.
> --
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> http://apache-hbase.679495.n3.nabble.com/Need-to-update-dfs-data-dir-in-Data-Nodes-Best-approach-tp4051992.html
> Sent from the HBase User mailing list archive at Nabble.com.

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