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HBase, mail # user - A question of storage structure for memstore?


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yonghu 2012-10-22, 11:25
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Kevin Odell 2012-10-22, 12:25
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Anoop Sam John 2012-10-22, 13:05
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Re: A question of storage structure for memstore?
yonghu 2012-10-22, 14:13
Thanks for your responses.

yong
On Mon, Oct 22, 2012 at 3:05 PM, Anoop Sam John <[EMAIL PROTECTED]> wrote:
> To be precise there will be one memstore per family per region..
> If table having 2 CFs and there are 10 regions for that table then totally 2*10=20 memstores..
>
> -Anoop-
> ________________________________________
> From: Kevin O'dell [[EMAIL PROTECTED]]
> Sent: Monday, October 22, 2012 5:55 PM
> To: [EMAIL PROTECTED]
> Subject: Re: A question of storage structure for memstore?
>
> Yes, there will be two memstores if you have two CFs.
> On Oct 22, 2012 7:25 AM, "yonghu" <[EMAIL PROTECTED]> wrote:
>
>> Dear All,
>>
>> In the description it mentions that a Store file (per column family)
>> is composed of one memstore and a set of HFiles. Does it imply that
>> for every column family there is a corresponding memstore? For
>> example. if a table has 2 column families, there will be 2 memstores
>> in memory?
>>
>> regards!
>>
>> Yong
>>