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From "Kevin O'dell" <kevin.od...@cloudera.com>
Subject Re: should i use compression?
Date Wed, 03 Apr 2013 14:21:54 GMT
Prakash,

  Yes, I would recommend Snappy Compression.

On Wed, Apr 3, 2013 at 10:18 AM, Prakash Kadel <prakash.kadel@gmail.com> wrote:
> Thanks,
>     is there any specific compression that is recommended of the use case i have?
>    Since my values are all null will compression help?
>
>  I am thinking of using prefix data_block_encoding..
> Sincerely,
> Prakash Kadel
>
>
> On Apr 3, 2013, at 10:55 PM, Ted Yu wrote:
>
>> You should use data block encoding (in 0.94.x releases only). It is helpful
>> for reads.
>>
>> You can also enable compression.
>>
>> Cheers
>>
>>
>> On Wed, Apr 3, 2013 at 6:42 AM, Prakash Kadel <prakash.kadel@gmail.com>wrote:
>>
>>> Hello,
>>>    I have a question.
>>>    I have a table where i store data in the column qualifiers(the values
>>> itself are null).
>>>    I just have 1 column family.
>>>   The number of columns per row is variable (1~ few thousands)
>>>
>>> Currently i don't use compression or the data_block_encoding.
>>>
>>> Should i?
>>> I want to have faster reads.
>>>
>>> Please suggest.
>>>
>>>
>>> Sincerely,
>>> Prakash Kadel
>



-- 
Kevin O'Dell
Systems Engineer, Cloudera

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