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From "Sangmin Lee" <sangmin....@gmail.com>
Subject Re: porting HDFS to Zookeeper??
Date Tue, 01 Jul 2008 08:41:34 GMT
Thank you for the replies.
I meant porting HDFS to Zookeeper to make namenode fault-tolerant and highly
available rather than the simple usage of Zookeeper. Basically by storing
namespace metadata in Zookeeper, we may be able to get highly available
replicated namenodes. So I meant using Zookeeper as frontend of HDFS. Anyway
it seems to me that there has been no actual work going on regarding this,
isn't it? :-)


On Mon, Jun 30, 2008 at 6:38 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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