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Posted to mapreduce-user@hadoop.apache.org by Grandl Robert <rg...@yahoo.com> on 2012/07/11 23:07:12 UTC

descentralized write operation in HDFS

Hi,

It is possible to write to a HDFS datanode w/o relying on Namenode, i.e. to find the location of Datanodes from somewhere else ?

Thanks,
Robert

Re: descentralized write operation in HDFS

Posted by Harsh J <ha...@cloudera.com>.

Not that I know of, the block allocations are done by the NameNode for
several reasons/edge cases, and that is why the write path is as it is
today.

What problem are you trying to solve though, that led you to ask this?
If we have more info about the problem to solve, we can provide better
answers.

On Thu, Jul 12, 2012 at 2:37 AM, Grandl Robert <rg...@yahoo.com> wrote:
> Hi,
>
> It is possible to write to a HDFS datanode w/o relying on Namenode, i.e. to
> find the location of Datanodes from somewhere else ?
>
> Thanks,
> Robert

-- 
Harsh J