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From Joseph Coleman <joe.cole...@infinitecampus.com>
Subject Re: Hadoop setup question.
Date Tue, 01 Feb 2011 20:17:26 GMT
Sorry that was a typo on the amount of Master node although  what is the
limitation of how many masters you can have? Thank you for the feedback on
the JBOD however, I am a little lost on the setup of it. Looking at a Dell
1950 or 2950 I do not see that as an option in the raid controller setup
nor do I see that as an option when setting up Ubuntu. Is this a hardware
or software option after the fact? Do I just setup raid0 do a ext root vol
and then run a command to convert to JBOD. Sorry for the ignorance this is
just new to me and I want to get it right the first time.


On 2/1/11 10:06 AM, "Sean Bigdatafun" <sean.bigdatafun@gmail.com> wrote:

>- hbase-user
>No raid should be used, use JBOD instead. I do not think you can setup 3
>master nodes in current Hadoop version, can you explain why you believe
>On Tue, Feb 1, 2011 at 7:50 AM, Joseph Coleman <
>joe.coleman@infinitecampus.com> wrote:
>> Hi all not sure where to ask this question but here it goes. I have been
>> playing with Hadoop for a while now in a test environment before we
>> and deploy a productions environment. I am using Hadoop 0.20.0  on
>> 10.04 LTS install on Dell 1950's currently.
>> My question is what raid should I be using for my data nodes? I haven't
>> come across anything that clearly spells it out I have used raid1 and
>> EXT4 filesystem but I know this isn't right after further research but
>> sure what do do. I will be setting up 3 masters in a cluster which I
>> raid out. And roughly 10 datanodes running hdfs and hbase and a separate
>> zookeeper cluster. Any thoughts or recommendations on the clustering
>> be much appreciated.
>> Thanks,
>> Joe

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