Fix Seen Cache Interval (#7751)

* fix

* var

Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>
Co-authored-by: Victor Farazdagi <simple.square@gmail.com>
Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>

beacon-chain/p2p/parameter_test.go

@@ -1,12 +1,10 @@
 package p2p
 
 import (
-	"math"
 	"testing"
 	"time"
 
 	pubsub "github.com/libp2p/go-libp2p-pubsub"
-	"github.com/prysmaticlabs/prysm/shared/params"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"
 )
 
@@ -42,10 +40,7 @@ func TestGossipParameters(t *testing.T) {
 	setPubSubParameters()
 	assert.Equal(t, gossipSubMcacheLen, pubsub.GossipSubHistoryLength, "gossipSubMcacheLen")
 	assert.Equal(t, gossipSubMcacheGossip, pubsub.GossipSubHistoryGossip, "gossipSubMcacheGossip")
-	val := (params.BeaconConfig().SlotsPerEpoch * params.BeaconConfig().SecondsPerSlot * 1000) /
-		uint64(pubsub.GossipSubHeartbeatInterval.Milliseconds())
-	roundedUp := math.Round(float64(val) / 10)
-	assert.Equal(t, gossipSubSeenTTL, int(roundedUp)*10, "gossipSubSeenTtl")
+	assert.Equal(t, gossipSubSeenTTL, int(pubsub.TimeCacheDuration.Milliseconds()/pubsub.GossipSubHeartbeatInterval.Milliseconds()), "gossipSubSeenTtl")
 }
 
 func TestFanoutParameters(t *testing.T) {

beacon-chain/p2p/pubsub.go

@@ -98,8 +98,10 @@ func msgIDFunction(pmsg *pubsub_pb.Message) string {
 }
 
 func setPubSubParameters() {
+	heartBeatInterval := 700 * time.Millisecond
 	pubsub.GossipSubDlo = 5
-	pubsub.GossipSubHeartbeatInterval = 700 * time.Millisecond
+	pubsub.GossipSubHeartbeatInterval = heartBeatInterval
 	pubsub.GossipSubHistoryLength = 6
 	pubsub.GossipSubHistoryGossip = 3
+	pubsub.TimeCacheDuration = 550 * heartBeatInterval
 }