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swarm: initial instrumentation (#15969)

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* swarm: initial instrumentation with go-metrics

* swarm: initialise metrics collection and add ResettingTimer to HTTP requests

* swarm: update metrics flags names. remove redundant Timer.

* swarm: rename method for periodically updating gauges

* swarm: finalise metrics after feedback

* swarm/network: always init kad metrics containers

* swarm/network: off-by-one index in metrics containers

* swarm, metrics: resolved conflicts
This commit is contained in:
Anton Evangelatov
2018-02-23 14:19:59 +01:00
committed by Balint Gabor
parent b677a07d36
commit dcca613a0b
16 changed files with 381 additions and 10 deletions
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10
swarm/network/hive.go
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@ -24,6 +24,7 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/p2p/discover"
"github.com/ethereum/go-ethereum/p2p/netutil"
"github.com/ethereum/go-ethereum/swarm/network/kademlia"
@ -39,6 +40,12 @@ import (
// connections and disconnections are reported and relayed
// to keep the nodetable uptodate
var (
peersNumGauge = metrics.NewRegisteredGauge("network.peers.num", nil)
addPeerCounter = metrics.NewRegisteredCounter("network.addpeer.count", nil)
removePeerCounter = metrics.NewRegisteredCounter("network.removepeer.count", nil)
)
type Hive struct {
listenAddr func() string
callInterval uint64
@ -192,6 +199,7 @@ func (self *Hive) Start(id discover.NodeID, listenAddr func() string, connectPee
func (self *Hive) keepAlive() {
alarm := time.NewTicker(time.Duration(self.callInterval)).C
for {
peersNumGauge.Update(int64(self.kad.Count()))
select {
case <-alarm:
if self.kad.DBCount() > 0 {
@ -223,6 +231,7 @@ func (self *Hive) Stop() error {
// called at the end of a successful protocol handshake
func (self *Hive) addPeer(p *peer) error {
addPeerCounter.Inc(1)
defer func() {
select {
case self.more <- true:
@ -247,6 +256,7 @@ func (self *Hive) addPeer(p *peer) error {
// called after peer disconnected
func (self *Hive) removePeer(p *peer) {
removePeerCounter.Inc(1)
log.Debug(fmt.Sprintf("bee %v removed", p))
self.kad.Off(p, saveSync)
select {