git/list[1] front-page[2] threads[3] people[4] search[5] about
 

Re: Resumable clone/Gittorrent (again)

From
Nguyen Thai Ngoc Duy <pclouds@gmail.com>
Date
Jan 9, 2011, 03:34 UTC
Message-ID
<AANLkTi=KPVMEviQhyJeWHynPa2q6NJpQ2VyAhbRcmQ1D@mail.gmail.com>
In-Reply-To
<AANLkTim2A4=y=XcuPuPiYGDGZyKAUEk-yv2cZVEGhQ3C@mail.gmail.com>

On Sun, Jan 9, 2011 at 12:21 AM, Luke Kenneth Casson Leighton <luke.leighton@gmail.com> wrote:

>  ok - you haven't answered the question: are the chains perfectly
> fixed identical sizes?
No.
Show 5 quoted lines
>  if so they can be slotted into the bittorrent protocol by simply
> pre-selecting the size to match.  with the downside that if there are
> a million such "chains" you now pretty much overwhelm the peers with
> the amount of processing, network traffic and memory requirements to
> maintain the "pieces" map.

No, there are thousands of them only (less than 100k for repos I examined). It's precisely the reason I stay away from commits as pieces because commits can potentially go up to millions.

>  if not then you now need to modify the bittorrent protocol to cope
> with variable-length block sizes: the protocol only allows for the
> last block to be of variable-length.

Ah I see. I do not reuse bittorrent code out there. Just its ideas, adapted to git model. If you don't want to modify bittorrent protocol at all, seed a bundle (as mentioned in another thread).

-- 
Duy
Previous: Luke Kenneth Casson LeightonNext: Luke Kenneth Casson Leighton
Message 18 of 25 in “Resumable clone/Gittorrent (again)”
  1. Nguyen Thai Ngoc DuyJan 5, 2011
  2. Luke Kenneth Casson LeightonJan 5, 2011
  3. Thomas RastJan 5, 2011
  4. Luke Kenneth Casson LeightonJan 5, 2011
  5. Nguyen Thai Ngoc DuyJan 6, 2011
  6. Luke Kenneth Casson LeightonJan 6, 2011
  7. MaaartinJan 5, 2011
  8. Nguyen Thai Ngoc DuyJan 6, 2011
  9. Maaartin-1Jan 6, 2011
  10. Nguyen Thai Ngoc DuyJan 6, 2011
  11. Maaartin-1Jan 8, 2011
  12. Nguyen Thai Ngoc DuyJan 8, 2011
  13. Nicolas PitreJan 7, 2011
  14. Nguyen Thai Ngoc DuyJan 7, 2011
  15. Luke Kenneth Casson LeightonJan 7, 2011
  16. Nguyen Thai Ngoc DuyJan 8, 2011
  17. Luke Kenneth Casson LeightonJan 8, 2011
  18. Nguyen Thai Ngoc DuyJan 9, 2011
  19. Luke Kenneth Casson LeightonJan 9, 2011
  20. Nguyen Thai Ngoc DuyJan 9, 2011
  21. Luke Kenneth Casson LeightonJan 13, 2011
  22. Sam VilainJan 13, 2011
  23. Luke Kenneth Casson LeightonJan 14, 2011
  24. Sam VilainJan 16, 2011
  25. Sam VilainJan 10, 2011

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.