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Least expensive metrics (#421) 

* add more general and useful metrics

* fix gossipsub peers metrics in heartbeat
This commit is contained in:
Giovanni Petrantoni 2020-11-04 23:18:00 +09:00 committed by GitHub
parent 7b5259dbc7
commit e496802943
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1 changed files with 13 additions and 0 deletions
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13
libp2p/protocols/pubsub/gossipsub.nim
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@ -165,6 +165,9 @@ when defined(libp2p_expensive_metrics):
"gossipsub peers per topic in gossipsub",
labels = ["topic"])
declareGauge(libp2p_gossipsub_peers_mesh_sum, "pubsub peers in mesh table summed")
declareGauge(libp2p_gossipsub_peers_gossipsub_sum, "pubsub peers in gossipsub table summed")
proc init*(_: type[GossipSubParams]): GossipSubParams =
GossipSubParams(
explicit: true,
@ -768,11 +771,18 @@ proc heartbeat(g: GossipSub) {.async.} =
g.updateScores()
var
totalMeshPeers = 0
totalGossipPeers = 0
for t in toSeq(g.topics.keys):
# prune every negative score peer
# do this before relance
# in order to avoid grafted -> pruned in the same cycle
let meshPeers = g.mesh.getOrDefault(t)
let gossipPeers = g.gossipsub.getOrDefault(t)
# this will be changed by rebalance but does not matter
totalMeshPeers += meshPeers.len
totalGossipPeers += gossipPeers.len
var prunes: seq[PubSubPeer]
for peer in meshPeers:
if peer.score < 0.0:
@ -788,6 +798,9 @@ proc heartbeat(g: GossipSub) {.async.} =
await g.rebalanceMesh(t)
libp2p_gossipsub_peers_mesh_sum.set(totalMeshPeers.int64)
libp2p_gossipsub_peers_gossipsub_sum.set(totalGossipPeers.int64)
g.dropFanoutPeers()
# replenish known topics to the fanout