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MapReduce, mail # user - question about data block replicator number


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Re: question about data block replicator number
Jitendra Yadav 2013-08-16, 08:49
Yup that's the responsibility of namenode to control under and over
replicated blocks automatically, However you can you balancer script any
time.

Thanks
On Fri, Aug 16, 2013 at 2:09 PM, bharath vissapragada <
[EMAIL PROTECTED]> wrote:

> No, namenode deletes over-replicated blocks after some time.!
>
>
> On Fri, Aug 16, 2013 at 2:03 PM, ch huang <[EMAIL PROTECTED]> wrote:
>
>> hi,all:
>> if i have three data node, and data block replicator number is 2, one of
>> data node failed,so it's data block on it will move to another alive DN,the
>> replicator still be
>> 3 ,what if the failed DN recover ,the replicator will become 4?
>>
>
>