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MapReduce >> mail # user >> Re: How can I add a new hard disk in an existing HDFS cluster?


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Geelong Yao 2013-05-03, 08:14
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Håvard Wahl Kongsgård 2013-05-03, 09:58
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Rahul Bhattacharjee 2013-05-05, 16:30
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Re: How can I add a new hard disk in an existing HDFS cluster?
hi,Joarder Kamal:
   The following steps may help.
   1. Stop your datanode daemon which you want to add a new HDD.
   2. modify the data.dfs.dir property in hdfs-site.xml as mentioned by
Geelong Yao.
   3. start the DataNode daemon again.
 Ling Kun
On Mon, May 6, 2013 at 12:30 AM, Rahul Bhattacharjee <
[EMAIL PROTECTED]> wrote:

> I think the question here is as how to add new HDD volumn into an already
> existing formatted HDFS cluster.
>  Not sure , by just adding the directory in data.dfs.dir would help.
>
>
> On Fri, May 3, 2013 at 3:28 PM, Håvard Wahl Kongsgård <
> [EMAIL PROTECTED]> wrote:
>
>> go for ext3 or ext4
>>
>>
>> On Fri, May 3, 2013 at 8:32 AM, Joarder KAMAL <[EMAIL PROTECTED]> wrote:
>>
>>> Hi,
>>>
>>>  I have a running HDFS cluster (Hadoop/HBase) consists of 4 nodes and
>>> the initial hard disk (/dev/vda1) size is 10G only. Now I have a second
>>> hard drive /dev/vdb of 60GB size and want to add it into my existing HDFS
>>> cluster. How can I format the new hard disk (and in which format? XFS?) and
>>> mount it to work with HDFS
>>>
>>> Default HDFS directory is situated in
>>> /usr/local/hadoop-1.0.4/hadoop-datastore
>>> And I followed this link for installation.
>>>
>>> http://ankitasblogger.blogspot.com.au/2011/01/hadoop-cluster-setup.html
>>>
>>> Many thanks in advance :)
>>>
>>>
>>> Regards,
>>> Joarder Kamal
>>>
>>
>>
>>
>> --
>> Håvard Wahl Kongsgård
>> Data Scientist
>> Faculty of Medicine &
>> Department of Mathematical Sciences
>> NTNU
>>
>> http://havard.dbkeeping.com/
>>
>
>
--
http://www.lingcc.com