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From Ted Dunning <tdunn...@maprtech.com>
Subject Re: Running a server on HDFS
Date Tue, 12 Jul 2011 14:51:25 GMT
HDFS is not a normal file system.  Instead highly optimized for running
map-reduce.  As such, it uses replicated storage but imposes a write-once
model on files.

This probably makes it unsuitable as a primary storage for VM's.

What you need is either a conventional networked storage device or if
Hadoop-like capabilities are important then something like MapR which allows
complete NFS access to the file system while still being compatible with
Hadoop for running map-reduce programs.

On Tue, Jul 12, 2011 at 4:44 AM, shanice msuya <shanicemsuya@gmail.com>wrote:

> I mean I want to place some virtual machines inside Xen server, but I want
> Xen to run ontop of HDFS not a normal linux file system. But I don't know
> how to run Xen server in HDFS
> On Mon, Jul 11, 2011 at 11:47 PM, Robert Evans <evans@yahoo-inc.com>wrote:
>>  What do you mean by run Xen server in HDFS? Do you mean you want to use
>> Xen to allocate data nodes?
>> --Bobby
>> On 7/11/11 8:37 AM, "shanice msuya" <shanicemsuya@gmail.com> wrote:
>> Hi all.
>> I am trying to run xen server in hdfs but I am not sure how to do it? any
>> ideas/help
>> Thanks.
>> Shanice.

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