GitLab

It doesn't appear to be used.

- go-libp2p 4.4.3
- go-libp2p-netutil 0.2.18
- go-libp2p-host 1.3.16

First, we use Alpha instead of K as the number of peers we grab from the
routing table (as per the kademlia paper).

Second, we don't use a size limited set for the 'GetClosestPeers' query.
We're going to process more than K peers before we find the K closest
peers.

Third, Change GetClosestPeers to actually return the K Closest peers,
not a hodge podge of peers that it found on the way to finding the
closest peers.