-Re: Sane max storage size for DN
Ted Dunning 2012-12-12, 15:44
Yes it does make sense, depending on how much compute each byte of data
will require on average. With ordinary Hadoop, it is reasonable to have
half a dozen 2TB drives. With specialized versions of Hadoop considerably
more can be supported.
>From what you say, it sounds like you are suggesting that your name node
get a part of a single drive with the rest being shared with other virtual
instances or with an OS partition. That would be a really bad idea for
performance. Many Hadoop programs are I/O bound so having more than one
spindle is a good thing.
On Wed, Dec 12, 2012 at 7:02 AM, Mohammad Tariq <[EMAIL PROTECTED]> wrote:
> Hello list,
> I don't know if this question makes any sense, but I would like
> to ask, does it make sense to store 500TB (or more) data in a single DN?If
> yes, then what should be the spec of other parameters *viz*. NN & DN RAM,
> N/W etc?If no, what could be the alternative?
> Many thanks.
> Mohammad Tariq