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pubsub: only trace message for the blocks topic

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This commit is contained in:
vyzo 2020-07-31 10:15:21 +03:00
parent 741818ee67
commit 1649c32325
1 changed files with 27 additions and 6 deletions
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27
node/modules/lp2p/pubsub.go
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@ -301,7 +301,7 @@ func GossipSub(in GossipIn) (service *pubsub.PubSub, err error) {
return nil, err
}
trw := newTracerWrapper(tr)
trw := newTracerWrapper(tr, build.BlocksTopic(in.Nn))
options = append(options, pubsub.WithEventTracer(trw))
}
@ -317,12 +317,27 @@ func HashMsgId(m *pubsub_pb.Message) string {
return string(hash[:])
}
func newTracerWrapper(tr pubsub.EventTracer) pubsub.EventTracer {
return &tracerWrapper{tr: tr}
func newTracerWrapper(tr pubsub.EventTracer, topics ...string) pubsub.EventTracer {
topicsMap := make(map[string]struct{})
for _, topic := range topics {
topicsMap[topic] = struct{}{}
}
return &tracerWrapper{tr: tr, topics: topicsMap}
}
type tracerWrapper struct {
tr pubsub.EventTracer
topics map[string]struct{}
}
func (trw *tracerWrapper) traceMessage(topics []string) bool {
for _, topic := range topics {
_, ok := trw.topics[topic]
if ok {
return true
}
}
return false
}
func (trw *tracerWrapper) Trace(evt *pubsub_pb.TraceEvent) {
@ -330,12 +345,18 @@ func (trw *tracerWrapper) Trace(evt *pubsub_pb.TraceEvent) {
// JOIN/LEAVE/GRAFT/PRUNE/PUBLISH/DELIVER. This significantly reduces bandwidth usage and still
// collects enough data to recover the state of the mesh and compute message delivery latency
// distributions.
// Furthermore, we only trace message publication and deliveries for specified topics
// (here just the blocks topic).
// TODO: hook all events into local metrics for inspection through the dashboard
switch evt.GetType() {
case pubsub_pb.TraceEvent_PUBLISH_MESSAGE:
if trw.traceMessage(evt.GetPublishMessage().Topics) {
trw.tr.Trace(evt)
}
case pubsub_pb.TraceEvent_DELIVER_MESSAGE:
if trw.traceMessage(evt.GetDeliverMessage().Topics) {
trw.tr.Trace(evt)
}
case pubsub_pb.TraceEvent_JOIN:
trw.tr.Trace(evt)
case pubsub_pb.TraceEvent_LEAVE: