It's a facility so that you don't have to read+write in order to add
something to a value. With Append the read is done in the region
server before the write, also it solves the problem where you could
have a race when there are multiple appenders.

J-D

On Tue, May 22, 2012 at 8:51 PM, NNever <nnever...@gmail.com> wrote:
> Simple question,  what's the difference between "Append" and "Put"?
> It seems they both can put some datas into a row.
> Dose "Append" keep several write operations in atom but Put not?
>
> if it is, then is "Append" is going to take place of Put? may Append slower
> than Put?
>
> Thanks~
>
> -------------------------------
> Best regards,
> nn

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