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MapReduce >> mail # user >> why multiple checkpoint nodes?


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Re: why multiple checkpoint nodes?
so reliability (to prevent metadata loss) is the main motivation for
multiple checkpoint nodes?

Does anybody use multiple checkpoint nodes in real life?

Thanks
On Thu, Apr 18, 2013 at 12:07 PM, shashwat shriparv <
[EMAIL PROTECTED]> wrote:

> more checkpoint nodes means more backup of the metadata :)
>
> *Thanks & Regards    *
>
> ∞
> Shashwat Shriparv
>
>
>
> On Thu, Apr 18, 2013 at 9:35 PM, Thanh Do <[EMAIL PROTECTED]> wrote:
>
>> Hi all,
>>
>> The document says "Multiple checkpoint nodes may be specified in the
>> cluster configuration file".
>>
>> Can some one clarify me that why we really need to run multiple
>> checkpoint nodes anyway? Is it possible that while checkpoint node A is
>> doing checkpoint, and check point node B kicks in and does another
>> checkpoint?
>>
>> Thanks,
>> Thanh
>>
>
>