[bittorrent] Do Peers receive new peerlist from tracker at each announce?

Harold Feit dwknight at depthstrike.com
Thu Dec 4 07:43:25 EST 2008

Youmna BORGHOL wrote:
> Thank you for replying.
> Does that mean they should contact the tracker every 30 min and receive
> a new peerlist, but not necessarly connect to new peers.
Yes. Peers NEED to check in with the tracker at the interval defined by
the tracker (do NOT use an arbitrary amount of time) or else you won't
get new peers connecting to you.

> Why does the tracker returns peers randomly? Why there's no smarter
> implementation of peer selection on the tracker level?

Because ISPs have created conditions where the supposedly smarter peer
selection creates much worse performance overall, and as such the
implementations aren't actually smarter.

The only real selection improvement that actually helps right now is to
not give seeds out to other seeds.

> Thanks,
> Youmna

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