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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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32
swarm/swarm.go
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@ -34,6 +34,7 @@ import (
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethclient"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/discover"
@ -46,6 +47,16 @@ import (
"github.com/ethereum/go-ethereum/swarm/storage"
)
var (
startTime time.Time
updateGaugesPeriod = 5 * time.Second
startCounter = metrics.NewRegisteredCounter("stack,start", nil)
stopCounter = metrics.NewRegisteredCounter("stack,stop", nil)
uptimeGauge = metrics.NewRegisteredGauge("stack.uptime", nil)
dbSizeGauge = metrics.NewRegisteredGauge("storage.db.chunks.size", nil)
cacheSizeGauge = metrics.NewRegisteredGauge("storage.db.cache.size", nil)
)
// the swarm stack
type Swarm struct {
config *api.Config // swarm configuration
@ -262,6 +273,7 @@ Start is called when the stack is started
*/
// implements the node.Service interface
func (self *Swarm) Start(srv *p2p.Server) error {
startTime = time.Now()
connectPeer := func(url string) error {
node, err := discover.ParseNode(url)
if err != nil {
@ -307,9 +319,28 @@ func (self *Swarm) Start(srv *p2p.Server) error {
}
}
self.periodicallyUpdateGauges()
startCounter.Inc(1)
return nil
}
func (self *Swarm) periodicallyUpdateGauges() {
ticker := time.NewTicker(updateGaugesPeriod)
go func() {
for range ticker.C {
self.updateGauges()
}
}()
}
func (self *Swarm) updateGauges() {
dbSizeGauge.Update(int64(self.lstore.DbCounter()))
cacheSizeGauge.Update(int64(self.lstore.CacheCounter()))
uptimeGauge.Update(time.Since(startTime).Nanoseconds())
}
// implements the node.Service interface
// stops all component services.
func (self *Swarm) Stop() error {
@ -324,6 +355,7 @@ func (self *Swarm) Stop() error {
self.lstore.DbStore.Close()
}
self.sfs.Stop()
stopCounter.Inc(1)
return err
}