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
