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gossipsubv1.1: configure scores for bootstrapper PX

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This commit is contained in:
vyzo 2020-04-29 17:03:41 +03:00
parent 6b56652768
commit 7d7c83ef79
1 changed files with 26 additions and 8 deletions
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34
node/modules/lp2p/pubsub.go
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@ -34,16 +34,32 @@ func PubsubTracer() PubsubOpt {
}
func GossipSub(pubsubOptions ...PubsubOpt) interface{} {
return func(mctx helpers.MetricsCtx, lc fx.Lifecycle, host host.Host, nn dtypes.NetworkName) (service *pubsub.PubSub, err error) {
return func(mctx helpers.MetricsCtx, lc fx.Lifecycle, host host.Host, nn dtypes.NetworkName, bp dtypes.BootstrapPeers) (service *pubsub.PubSub, err error) {
bootstrappers := make(map[peer.ID]struct{})
for _, pi := range bp {
bootstrappers[pi.ID] = struct{}{}
}
_, isBootstrapNode := bootstrappers[host.ID()]
v11Options := []pubsub.Option{
// Gossipsubv1.1 configuration
pubsub.WithFloodPublish(true),
pubsub.WithPeerScore(
&pubsub.PeerScoreParams{
// TODO: we want to assign heavy positive scores to bootstrappers and also plug the
// application specific score to the node itself in order to provide feedback
// to the pubsub system based on observed behaviour
AppSpecificScore: func(p peer.ID) float64 { return 0 },
AppSpecificScore: func(p peer.ID) float64 {
// return a heavy positive score for bootstrappers so that we don't unilaterally prune
// them and accept PX from them.
// we don't do that in the bootstrappers themselves to avoid creating a closed mesh
// between them (however we might want to consider doing just that)
_, ok := bootstrappers[p]
if ok && isBootstrapNode {
return 2500
}
// TODO: we want to plug the application specific score to the node itself in order
// to provide feedback to the pubsub system based on observed behaviour
return 0
},
AppSpecificWeight: 1,
// This sets the IP colocation threshold to 1 peer per
@ -132,11 +148,13 @@ func GossipSub(pubsubOptions ...PubsubOpt) interface{} {
),
}
// TODO: we want to enable Peer eXchange on bootstrappers
// v11Options = append(v11Options, pubsub.WithPeerExchange(XXX))
// enable Peer eXchange on bootstrappers
if isBootstrapNode {
v11Options = append(v11Options, pubsub.WithPeerExchange(true))
}
// TODO: we want to hook the peer score inspector so that we can gain visibility
// in peer scores for debugging purposes -- this can be trigged by metrics collection
// in peer scores for debugging purposes -- this might be trigged by metrics collection
// v11Options = append(v11Options, pubsub.WithPeerScoreInspect(XXX, time.Second))
options := append(v11Options, paresOpts(host, pubsubOptions)...)