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Posted to user@hbase.apache.org by Ramasubramanian <ra...@gmail.com> on 2012/09/11 09:52:03 UTC

Regarding column family

Hi,

Does column family play any role during loading a file into hbase from hdfs in terms of performance?

Regards,
Rams

Re: Regarding column family

Posted by Doug Meil <do...@explorysmedical.com>.

Hi there, additionally, see..

http://hbase.apache.org/book.html#regions.arch

Š and focus on "9.7.5.4. KeyValue" because the CF name is actually a part
of each KV.  




On 9/11/12 4:03 AM, "n keywal" <nk...@gmail.com> wrote:

>Yes, because there is one store (hence set of files) per column family.
>See this: http://hbase.apache.org/book.html#number.of.cfs
>
>On Tue, Sep 11, 2012 at 9:52 AM, Ramasubramanian <
>ramasubramanian.narayanan@gmail.com> wrote:
>
>> Hi,
>>
>> Does column family play any role during loading a file into hbase from
>> hdfs in terms of performance?
>>
>> Regards,
>> Rams

Re: Regarding column family

Posted by n keywal <nk...@gmail.com>.

Yes, because there is one store (hence set of files) per column family.
See this: http://hbase.apache.org/book.html#number.of.cfs

On Tue, Sep 11, 2012 at 9:52 AM, Ramasubramanian <
ramasubramanian.narayanan@gmail.com> wrote:

> Hi,
>
> Does column family play any role during loading a file into hbase from
> hdfs in terms of performance?
>
> Regards,
> Rams