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From "Ted Dunning" <ted.dunn...@gmail.com>
Subject Re: porting HDFS to Zookeeper??
Date Tue, 01 Jul 2008 00:07:00 GMT
The idea of using zookeeper to coordinate multiple namenodes which handle
different parts of the name-space would be nice as well.

Using zookeeper as it currently is to replace the name node is probably a
non-starter because zookeeper keeps everything in memory which means that
there would be no win in terms of number of files.

On Mon, Jun 30, 2008 at 4:38 PM, Sanjay Radia <sradia@yahoo-inc.com> wrote:

> Sangmin Lee wrote:
>> Folks,
>> I heard that there was a plans to porting HDFS to Zookeeper to get a high
>> availability.
>> Is this true?
>> If so, could anyone let me know about the status of this effort?
>> Cheers,
>> -sangmin
>>  Do you  literally mean port or simply use Zookeeper.
> One could store the name space and data in Zookeeper - an interesting
> exercise.
> Alternatively, one could use Zookeeper to elect a primary Namenode for HA;
> this would be a good use of Zookeeper.
> I can see this happening once we have replicated Namenodes.
> sanjay


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