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network: broadcast to log-dependent number of nodes

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Fixes #608.
This commit is contained in:
Roman Khimov 2022-10-12 22:57:49 +03:00
parent dc62046019
commit 631f166709
4 changed files with 30 additions and 5 deletions
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11
pkg/network/server.go
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@ -1363,8 +1363,12 @@ func (s *Server) iteratePeersWithSendMsg(msg *Message, send func(Peer, context.C
return
}
var replies = make(chan error, peerN) // Cache is there just to make goroutines exit faster.
var ctx, cancel = context.WithTimeout(context.Background(), s.TimePerBlock/2)
var (
// Optimal number of recipients.
enoughN = s.discovery.GetFanOut()
replies = make(chan error, peerN) // Cache is there just to make goroutines exit faster.
ctx, cancel = context.WithTimeout(context.Background(), s.TimePerBlock/2)
)
for _, peer := range peers {
go func(p Peer, ctx context.Context, pkt []byte) {
// Do this before packet is sent, reader thread can get the reply before this routine wakes up.
@ -1383,8 +1387,7 @@ func (s *Server) iteratePeersWithSendMsg(msg *Message, send func(Peer, context.C
if sentN+deadN == peerN {
break
}
// Send to 2/3 of good peers.
if 3*sentN >= 2*(peerN-deadN) && ctx.Err() == nil {
if sentN >= enoughN && ctx.Err() == nil {
cancel()
}
}