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From Shashidhar Rao <raoshashidhar...@gmail.com>
Subject Re: Hadoop and Hbase
Date Tue, 15 Apr 2014 04:11:16 GMT
Thanks Ted Yu


On Tue, Apr 15, 2014 at 9:37 AM, Ted Yu <yuzhihong@gmail.com> wrote:

> When Region Servers are co-located with Datanodes, you can utilize short
> circuit read feature.
> See 12.11.2 of http://hbase.apache.org/book.html#perf.hdfs
>
> Factors to consider co-location include the allocation of memory of server
> - so that region server and Data node can have ample memory to fulfill
> their tasks.
>
> Cheers
>
>
> On Mon, Apr 14, 2014 at 8:59 PM, Shashidhar Rao <
> raoshashidhar123@gmail.com> wrote:
>
>> Hi,
>>
>> Please somebody clarify how hadoop and hbase are both used in real
>> production environment.
>>
>> Do the Region Servers of Hbase can be installed in Hadoop Datanodes or
>> Region servers are separated from Hadoop data nodes in multiple clusters.
>>
>> I know it's Hbase centric but still if someone has experienced in real
>> production environment please share your experiences.
>>
>> Regards
>> Shashidhar
>>
>
>

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