On Fri, Sep 25, 2009 at 04:49:33AM -0400, fuji246 wrote:

> Well, we divide file into blocks, each block is 4M, and files are divided into blocks before storing them in backend storage.
>
> The metadata here including the filename, filesize, and sha256 hash of the blocks.
>
> Our service need to assemble the blocks on the fly and pipelining them to the client.
>
> Seems subrequests are needed to send multiple requests to the backend storage server and then assemble the response.
>
> Is that correct?

Yes, subrequests allow to assemble the response in right order.


--
Igor Sysoev
http://sysoev.ru/en/