TrueCloudLab/frostfs-node
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[#424] metrics: Drop embedded metrics

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It was not obvious where metrics are used.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
This commit is contained in:
Dmitrii Stepanov 2023-06-14 10:05:51 +03:00
parent 1b364d8cf4
commit c348ae35b0
10 changed files with 173 additions and 285 deletions
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2
cmd/frostfs-node/config.go
View file

@ -679,7 +679,7 @@ func (c *cfg) engineOpts() []engine.Option {
)
if c.metricsCollector != nil {
opts = append(opts, engine.WithMetrics(c.metricsCollector))
opts = append(opts, engine.WithMetrics(c.metricsCollector.Engine()))
}
return opts

2
cmd/frostfs-node/control.go
View file

@ -80,7 +80,7 @@ func (c *cfg) setHealthStatus(st control.HealthStatus) {
c.healthStatus.Store(int32(st))
if c.metricsCollector != nil {
c.metricsCollector.SetHealth(int32(st))
c.metricsCollector.State().SetHealth(int32(st))
}
}

4
cmd/frostfs-node/object.go
View file

@ -195,7 +195,7 @@ func initObjectService(c *cfg) {
)
c.shared.metricsSvc = objectService.NewMetricCollector(
signSvc, c.metricsCollector, metricsconfig.Enabled(c.appCfg))
signSvc, c.metricsCollector.ObjectService(), metricsconfig.Enabled(c.appCfg))
server := objectTransportGRPC.New(c.shared.metricsSvc)
for _, srv := range c.cfgGRPC.servers {
@ -272,7 +272,7 @@ func createReplicator(c *cfg, keyStorage *util.KeyStorage, cache *cache.ClientCa
replicator.WithRemoteSender(
putsvc.NewRemoteSender(keyStorage, cache),
),
replicator.WithMetrics(c.metricsCollector),
replicator.WithMetrics(c.metricsCollector.Replicator()),
)
}

91
pkg/metrics/engine.go
View file

@ -7,23 +7,40 @@ import (
"github.com/prometheus/client_golang/prometheus"
)
type (
engineMetrics struct {
methodDuration *prometheus.HistogramVec
type EngineMetrics interface {
AddMethodDuration(method string, d time.Duration)
AddToContainerSize(cnrID string, size int64)
IncErrorCounter(shardID string)
ClearErrorCounter(shardID string)
DeleteShardMetrics(shardID string)
AddToObjectCounter(shardID, objectType string, delta int)
SetObjectCounter(shardID, objectType string, v uint64)
AddToPayloadCounter(shardID string, size int64)
SetReadonly(shardID string, readonly bool)
containerSize *prometheus.GaugeVec
payloadSize *prometheus.GaugeVec
errorCounter *prometheus.GaugeVec
}
)
WriteCache() WriteCacheMetrics
GC() GCMetrics
}
type engineMetrics struct {
methodDuration *prometheus.HistogramVec
objectCounter *prometheus.GaugeVec
containerSize *prometheus.GaugeVec
payloadSize *prometheus.GaugeVec
errorCounter *prometheus.GaugeVec
shardsReadonly *prometheus.GaugeVec
gc *gcMetrics
writeCache *writeCacheMetrics
}
const (
engineSubsystem = "engine"
engineMethod = "method"
)
func newEngineMetrics() engineMetrics {
return engineMetrics{
func newEngineMetrics() *engineMetrics {
return &engineMetrics{
containerSize: newEngineGaugeVector("container_size_bytes", "Accumulated size of all objects in a container", []string{containerIDLabelKey}),
payloadSize: newEngineGaugeVector("payload_size_bytes", "Accumulated size of all objects in a shard", []string{shardIDLabelKey}),
errorCounter: newEngineGaugeVector("error_counter", "Shard's error counter", []string{shardIDLabelKey}),
@ -33,6 +50,10 @@ func newEngineMetrics() engineMetrics {
Name: "request_duration_seconds",
Help: "Duration of Engine requests",
}, []string{engineMethod}),
objectCounter: newEngineGaugeVector("object_counter", "Objects counters per shards", []string{shardIDLabelKey, counterTypeLabelKey}),
shardsReadonly: newEngineGaugeVector("mode", "Shard mode", []string{shardIDLabelKey}),
gc: newGCMetrics(),
writeCache: newWriteCacheMetrics(),
}
}
@ -51,23 +72,63 @@ func (m *engineMetrics) AddMethodDuration(method string, d time.Duration) {
}).Observe(d.Seconds())
}
func (m engineMetrics) AddToContainerSize(cnrID string, size int64) {
func (m *engineMetrics) AddToContainerSize(cnrID string, size int64) {
m.containerSize.With(prometheus.Labels{containerIDLabelKey: cnrID}).Add(float64(size))
}
func (m engineMetrics) AddToPayloadCounter(shardID string, size int64) {
func (m *engineMetrics) AddToPayloadCounter(shardID string, size int64) {
m.payloadSize.With(prometheus.Labels{shardIDLabelKey: shardID}).Add(float64(size))
}
func (m engineMetrics) IncErrorCounter(shardID string) {
func (m *engineMetrics) IncErrorCounter(shardID string) {
m.errorCounter.With(prometheus.Labels{shardIDLabelKey: shardID}).Inc()
}
func (m engineMetrics) ClearErrorCounter(shardID string) {
func (m *engineMetrics) ClearErrorCounter(shardID string) {
m.errorCounter.With(prometheus.Labels{shardIDLabelKey: shardID}).Set(0)
}
func (m engineMetrics) DeleteShardMetrics(shardID string) {
func (m *engineMetrics) DeleteShardMetrics(shardID string) {
m.errorCounter.Delete(prometheus.Labels{shardIDLabelKey: shardID})
m.payloadSize.Delete(prometheus.Labels{shardIDLabelKey: shardID})
m.objectCounter.DeletePartialMatch(prometheus.Labels{shardIDLabelKey: shardID})
m.shardsReadonly.Delete(prometheus.Labels{shardIDLabelKey: shardID})
}
func (m *engineMetrics) AddToObjectCounter(shardID, objectType string, delta int) {
m.objectCounter.With(
prometheus.Labels{
shardIDLabelKey: shardID,
counterTypeLabelKey: objectType,
},
).Add(float64(delta))
}
func (m *engineMetrics) SetObjectCounter(shardID, objectType string, v uint64) {
m.objectCounter.With(
prometheus.Labels{
shardIDLabelKey: shardID,
counterTypeLabelKey: objectType,
},
).Set(float64(v))
}
func (m *engineMetrics) SetReadonly(shardID string, readonly bool) {
var flag float64
if readonly {
flag = 1
}
m.shardsReadonly.With(
prometheus.Labels{
shardIDLabelKey: shardID,
},
).Set(flag)
}
func (m *engineMetrics) WriteCache() WriteCacheMetrics {
return m.writeCache
}
func (m *engineMetrics) GC() GCMetrics {
return m.gc
}

8
pkg/metrics/innerring.go
View file

@ -54,22 +54,22 @@ func NewInnerRingMetrics() *InnerRingServiceMetrics {
}
// SetEpoch updates epoch metrics.
func (m InnerRingServiceMetrics) SetEpoch(epoch uint64) {
func (m *InnerRingServiceMetrics) SetEpoch(epoch uint64) {
m.epoch.Set(float64(epoch))
}
// SetHealth updates health metrics.
func (m InnerRingServiceMetrics) SetHealth(s int32) {
func (m *InnerRingServiceMetrics) SetHealth(s int32) {
m.health.Set(float64(s))
}
func (m InnerRingServiceMetrics) AddEvent(d time.Duration, typ string, success bool) {
func (m *InnerRingServiceMetrics) AddEvent(d time.Duration, typ string, success bool) {
m.eventDuration.With(prometheus.Labels{
innerRingLabelType: typ,
innerRingLabelSuccess: strconv.FormatBool(success),
}).Observe(d.Seconds())
}
func (m InnerRingServiceMetrics) MorphCacheMetrics() MorphCacheMetrics {
func (m *InnerRingServiceMetrics) MorphCacheMetrics() MorphCacheMetrics {
return m.morphCacheMetrics
}

57
pkg/metrics/node.go
View file

@ -8,15 +8,12 @@ import (
const namespace = "frostfs_node"
type NodeMetrics struct {
objectServiceMetrics
engineMetrics
stateMetrics
replicatorMetrics
writeCacheMetrics *writeCacheMetrics
treeService *treeServiceMetrics
epoch prometheus.Gauge
gc *gcMetrics
engine *engineMetrics
state *stateMetrics
replicator *replicatorMetrics
objectService *objectServiceMetrics
treeService *treeServiceMetrics
epoch prometheus.Gauge
}
func NewNodeMetrics() *NodeMetrics {
@ -37,19 +34,13 @@ func NewNodeMetrics() *NodeMetrics {
Help: "Current epoch as seen by inner-ring node.",
})
writeCacheMetrics := newWriteCacheMetrics()
gc := newGCMetrics()
return &NodeMetrics{
objectServiceMetrics: objectService,
engineMetrics: engine,
stateMetrics: state,
replicatorMetrics: replicator,
treeService: treeService,
epoch: epoch,
writeCacheMetrics: writeCacheMetrics,
gc: gc,
objectService: objectService,
engine: engine,
state: state,
replicator: replicator,
treeService: treeService,
epoch: epoch,
}
}
@ -58,18 +49,22 @@ func (m *NodeMetrics) SetEpoch(epoch uint64) {
m.epoch.Set(float64(epoch))
}
// WriteCache returns WriteCache metrics.
func (m *NodeMetrics) WriteCache() WriteCacheMetrics {
if m == nil {
return nil
}
return m.writeCacheMetrics
}
func (m *NodeMetrics) TreeService() TreeMetricsRegister {
return m.treeService
}
func (m *NodeMetrics) GC() GCMetrics {
return m.gc
func (m *NodeMetrics) Replicator() ReplicatorMetrics {
return m.replicator
}
func (m *NodeMetrics) ObjectService() ObjectServiceMetrics {
return m.objectService
}
func (m *NodeMetrics) Engine() EngineMetrics {
return m.engine
}
func (m *NodeMetrics) State() StateMetrics {
return m.state
}

218
pkg/metrics/object.go
View file

@ -1,8 +1,7 @@
package metrics
import (
"fmt"
"strings"
"strconv"
"time"
"git.frostfs.info/TrueCloudLab/frostfs-observability/metrics"
@ -11,207 +10,50 @@ import (
const objectSubsystem = "object"
type (
methodCount struct {
success prometheus.Counter
total prometheus.Counter
}
type ObjectServiceMetrics interface {
AddRequestDuration(method string, d time.Duration, success bool)
AddPayloadSize(method string, size int)
}
objectServiceMetrics struct {
getCounter methodCount
putCounter methodCount
headCounter methodCount
searchCounter methodCount
deleteCounter methodCount
rangeCounter methodCount
rangeHashCounter methodCount
getDuration prometheus.Counter
putDuration prometheus.Counter
headDuration prometheus.Counter
searchDuration prometheus.Counter
deleteDuration prometheus.Counter
rangeDuration prometheus.Counter
rangeHashDuration prometheus.Counter
putPayload prometheus.Counter
getPayload prometheus.Counter
shardMetrics *prometheus.GaugeVec
shardsReadonly *prometheus.GaugeVec
}
)
type objectServiceMetrics struct {
methodDuration *prometheus.HistogramVec
payloadCounter *prometheus.CounterVec
}
const (
shardIDLabelKey = "shard"
counterTypeLabelKey = "type"
containerIDLabelKey = "cid"
methodLabelKey = "method"
successLabelKey = "success"
)
func newObjectMethodCallCounter(name string) methodCount {
return methodCount{
success: metrics.NewCounter(prometheus.CounterOpts{
func newObjectServiceMetrics() *objectServiceMetrics {
return &objectServiceMetrics{
methodDuration: metrics.NewHistogramVec(prometheus.HistogramOpts{
Namespace: namespace,
Subsystem: objectSubsystem,
Name: fmt.Sprintf("%s_req_count_success", name),
Help: fmt.Sprintf("The number of successful %s requests processed", name),
}),
total: metrics.NewCounter(prometheus.CounterOpts{
Name: "request_duration_seconds",
Help: "Object Service request process duration",
}, []string{methodLabelKey, successLabelKey}),
payloadCounter: metrics.NewCounterVec(prometheus.CounterOpts{
Namespace: namespace,
Subsystem: objectSubsystem,
Name: fmt.Sprintf("%s_req_count", name),
Help: fmt.Sprintf("Total number of %s requests processed", name),
}),
Name: "request_payload_bytes",
Help: "Object Service request payload",
}, []string{methodLabelKey}),
}
}
func (m methodCount) Inc(success bool) {
m.total.Inc()
if success {
m.success.Inc()
}
func (m *objectServiceMetrics) AddRequestDuration(method string, d time.Duration, success bool) {
m.methodDuration.With(prometheus.Labels{
methodLabelKey: method,
successLabelKey: strconv.FormatBool(success),
}).Observe(d.Seconds())
}
func newObjectServiceMetrics() objectServiceMetrics {
return objectServiceMetrics{
getCounter: newObjectMethodCallCounter("get"),
putCounter: newObjectMethodCallCounter("put"),
headCounter: newObjectMethodCallCounter("head"),
searchCounter: newObjectMethodCallCounter("search"),
deleteCounter: newObjectMethodCallCounter("delete"),
rangeCounter: newObjectMethodCallCounter("range"),
rangeHashCounter: newObjectMethodCallCounter("range_hash"),
getDuration: newObjectMethodDurationCounter("get"),
putDuration: newObjectMethodDurationCounter("put"),
headDuration: newObjectMethodDurationCounter("head"),
searchDuration: newObjectMethodDurationCounter("search"),
deleteDuration: newObjectMethodDurationCounter("delete"),
rangeDuration: newObjectMethodDurationCounter("range"),
rangeHashDuration: newObjectMethodDurationCounter("range_hash"),
putPayload: newObjectMethodPayloadCounter("put"),
getPayload: newObjectMethodPayloadCounter("get"),
shardMetrics: newObjectGaugeVector("counter", "Objects counters per shards", []string{shardIDLabelKey, counterTypeLabelKey}),
shardsReadonly: newObjectGaugeVector("readonly", "Shard state", []string{shardIDLabelKey}),
}
}
func newObjectMethodPayloadCounter(method string) prometheus.Counter {
return metrics.NewCounter(prometheus.CounterOpts{
Namespace: namespace,
Subsystem: objectSubsystem,
Name: fmt.Sprintf("%s_payload", method),
Help: fmt.Sprintf("Accumulated payload size at object %s method", strings.ReplaceAll(method, "_", " ")),
})
}
func newObjectMethodDurationCounter(method string) prometheus.Counter {
return metrics.NewCounter(prometheus.CounterOpts{
Namespace: namespace,
Subsystem: objectSubsystem,
Name: fmt.Sprintf("%s_req_duration", method),
Help: fmt.Sprintf("Accumulated %s request process duration", strings.ReplaceAll(method, "_", " ")),
})
}
func newObjectGaugeVector(name, help string, labels []string) *prometheus.GaugeVec {
return metrics.NewGaugeVec(prometheus.GaugeOpts{
Namespace: namespace,
Subsystem: objectSubsystem,
Name: name,
Help: help,
}, labels)
}
func (m objectServiceMetrics) IncGetReqCounter(success bool) {
m.getCounter.Inc(success)
}
func (m objectServiceMetrics) IncPutReqCounter(success bool) {
m.putCounter.Inc(success)
}
func (m objectServiceMetrics) IncHeadReqCounter(success bool) {
m.headCounter.Inc(success)
}
func (m objectServiceMetrics) IncSearchReqCounter(success bool) {
m.searchCounter.Inc(success)
}
func (m objectServiceMetrics) IncDeleteReqCounter(success bool) {
m.deleteCounter.Inc(success)
}
func (m objectServiceMetrics) IncRangeReqCounter(success bool) {
m.rangeCounter.Inc(success)
}
func (m objectServiceMetrics) IncRangeHashReqCounter(success bool) {
m.rangeHashCounter.Inc(success)
}
func (m objectServiceMetrics) AddGetReqDuration(d time.Duration) {
m.getDuration.Add(float64(d))
}
func (m objectServiceMetrics) AddPutReqDuration(d time.Duration) {
m.putDuration.Add(float64(d))
}
func (m objectServiceMetrics) AddHeadReqDuration(d time.Duration) {
m.headDuration.Add(float64(d))
}
func (m objectServiceMetrics) AddSearchReqDuration(d time.Duration) {
m.searchDuration.Add(float64(d))
}
func (m objectServiceMetrics) AddDeleteReqDuration(d time.Duration) {
m.deleteDuration.Add(float64(d))
}
func (m objectServiceMetrics) AddRangeReqDuration(d time.Duration) {
m.rangeDuration.Add(float64(d))
}
func (m objectServiceMetrics) AddRangeHashReqDuration(d time.Duration) {
m.rangeHashDuration.Add(float64(d))
}
func (m objectServiceMetrics) AddPutPayload(ln int) {
m.putPayload.Add(float64(ln))
}
func (m objectServiceMetrics) AddGetPayload(ln int) {
m.getPayload.Add(float64(ln))
}
func (m objectServiceMetrics) AddToObjectCounter(shardID, objectType string, delta int) {
m.shardMetrics.With(
prometheus.Labels{
shardIDLabelKey: shardID,
counterTypeLabelKey: objectType,
},
).Add(float64(delta))
}
func (m objectServiceMetrics) SetObjectCounter(shardID, objectType string, v uint64) {
m.shardMetrics.With(
prometheus.Labels{
shardIDLabelKey: shardID,
counterTypeLabelKey: objectType,
},
).Set(float64(v))
}
func (m objectServiceMetrics) SetReadonly(shardID string, readonly bool) {
var flag float64
if readonly {
flag = 1
}
m.shardsReadonly.With(
prometheus.Labels{
shardIDLabelKey: shardID,
},
).Set(flag)
func (m *objectServiceMetrics) AddPayloadSize(method string, size int) {
m.payloadCounter.With(prometheus.Labels{
methodLabelKey: method,
}).Add(float64(size))
}

21
pkg/metrics/replicator.go
View file

@ -7,30 +7,39 @@ import (
const replicatorSubsystem = "replicator"
//TODO
type ReplicatorMetrics interface {
IncInFlightRequest()
DecInFlightRequest()
IncProcessedObjects()
AddPayloadSize(size int64)
}
type replicatorMetrics struct {
inFlightRequests prometheus.Gauge
processedObjects prometheus.Counter
totalReplicatedPayloadSize prometheus.Counter
}
func (m replicatorMetrics) IncInFlightRequest() {
func (m *replicatorMetrics) IncInFlightRequest() {
m.inFlightRequests.Inc()
}
func (m replicatorMetrics) DecInFlightRequest() {
func (m *replicatorMetrics) DecInFlightRequest() {
m.inFlightRequests.Dec()
}
func (m replicatorMetrics) IncProcessedObjects() {
func (m *replicatorMetrics) IncProcessedObjects() {
m.processedObjects.Inc()
}
func (m replicatorMetrics) AddPayloadSize(size int64) {
func (m *replicatorMetrics) AddPayloadSize(size int64) {
m.totalReplicatedPayloadSize.Add(float64(size))
}
func newReplicatorMetrics() replicatorMetrics {
return replicatorMetrics{
func newReplicatorMetrics() *replicatorMetrics {
return &replicatorMetrics{
inFlightRequests: newReplicatorGauge("in_flight_requests", "Number of in-flight requests"),
processedObjects: newReplicatorCounter("processed_objects", "Number of objects processed since the node startup"),
totalReplicatedPayloadSize: newReplicatorCounter("total_replicated_payload_size", "Total size of payloads replicated"),

10
pkg/metrics/state.go
View file

@ -7,12 +7,16 @@ import (
const stateSubsystem = "state"
type StateMetrics interface {
SetHealth(s int32)
}
type stateMetrics struct {
healthCheck prometheus.Gauge
}
func newStateMetrics() stateMetrics {
return stateMetrics{
func newStateMetrics() *stateMetrics {
return &stateMetrics{
healthCheck: metrics.NewGauge(prometheus.GaugeOpts{
Namespace: namespace,
Subsystem: stateSubsystem,
@ -22,6 +26,6 @@ func newStateMetrics() stateMetrics {
}
}
func (m stateMetrics) SetHealth(s int32) {
func (m *stateMetrics) SetHealth(s int32) {
m.healthCheck.Set(float64(s))
}

45
pkg/services/object/metrics.go
View file

@ -28,24 +28,8 @@ type (
}
MetricRegister interface {
IncGetReqCounter(success bool)
IncPutReqCounter(success bool)
IncHeadReqCounter(success bool)
IncSearchReqCounter(success bool)
IncDeleteReqCounter(success bool)
IncRangeReqCounter(success bool)
IncRangeHashReqCounter(success bool)
AddGetReqDuration(time.Duration)
AddPutReqDuration(time.Duration)
AddHeadReqDuration(time.Duration)
AddSearchReqDuration(time.Duration)
AddDeleteReqDuration(time.Duration)
AddRangeReqDuration(time.Duration)
AddRangeHashReqDuration(time.Duration)
AddPutPayload(int)
AddGetPayload(int)
AddRequestDuration(string, time.Duration, bool)
AddPayloadSize(string, int)
}
)
@ -61,8 +45,7 @@ func (m MetricCollector) Get(req *object.GetRequest, stream GetObjectStream) (er
if m.enabled {
t := time.Now()
defer func() {
m.metrics.IncGetReqCounter(err == nil)
m.metrics.AddGetReqDuration(time.Since(t))
m.metrics.AddRequestDuration("Get", time.Since(t), err == nil)
}()
err = m.next.Get(req, &getStreamMetric{
ServerStream: stream,
@ -99,8 +82,7 @@ func (m MetricCollector) Head(ctx context.Context, request *object.HeadRequest)
res, err := m.next.Head(ctx, request)
m.metrics.IncHeadReqCounter(err == nil)
m.metrics.AddHeadReqDuration(time.Since(t))
m.metrics.AddRequestDuration("Head", time.Since(t), err == nil)
return res, err
}
@ -113,8 +95,7 @@ func (m MetricCollector) Search(req *object.SearchRequest, stream SearchStream)
err := m.next.Search(req, stream)
m.metrics.IncSearchReqCounter(err == nil)
m.metrics.AddSearchReqDuration(time.Since(t))
m.metrics.AddRequestDuration("Search", time.Since(t), err == nil)
return err
}
@ -127,8 +108,7 @@ func (m MetricCollector) Delete(ctx context.Context, request *object.DeleteReque
res, err := m.next.Delete(ctx, request)
m.metrics.IncDeleteReqCounter(err == nil)
m.metrics.AddDeleteReqDuration(time.Since(t))
m.metrics.AddRequestDuration("Delete", time.Since(t), err == nil)
return res, err
}
return m.next.Delete(ctx, request)
@ -140,8 +120,7 @@ func (m MetricCollector) GetRange(req *object.GetRangeRequest, stream GetObjectR
err := m.next.GetRange(req, stream)
m.metrics.IncRangeReqCounter(err == nil)
m.metrics.AddRangeReqDuration(time.Since(t))
m.metrics.AddRequestDuration("GetRange", time.Since(t), err == nil)
return err
}
@ -154,8 +133,7 @@ func (m MetricCollector) GetRangeHash(ctx context.Context, request *object.GetRa
res, err := m.next.GetRangeHash(ctx, request)
m.metrics.IncRangeHashReqCounter(err == nil)
m.metrics.AddRangeHashReqDuration(time.Since(t))
m.metrics.AddRequestDuration("GetRangeHash", time.Since(t), err == nil)
return res, err
}
@ -173,7 +151,7 @@ func (m *MetricCollector) Disable() {
func (s getStreamMetric) Send(resp *object.GetResponse) error {
chunk, ok := resp.GetBody().GetObjectPart().(*object.GetObjectPartChunk)
if ok {
s.metrics.AddGetPayload(len(chunk.GetChunk()))
s.metrics.AddPayloadSize("Get", len(chunk.GetChunk()))
}
return s.stream.Send(resp)
@ -182,7 +160,7 @@ func (s getStreamMetric) Send(resp *object.GetResponse) error {
func (s putStreamMetric) Send(ctx context.Context, req *object.PutRequest) error {
chunk, ok := req.GetBody().GetObjectPart().(*object.PutObjectPartChunk)
if ok {
s.metrics.AddPutPayload(len(chunk.GetChunk()))
s.metrics.AddPayloadSize("Put", len(chunk.GetChunk()))
}
return s.stream.Send(ctx, req)
@ -191,8 +169,7 @@ func (s putStreamMetric) Send(ctx context.Context, req *object.PutRequest) error
func (s putStreamMetric) CloseAndRecv(ctx context.Context) (*object.PutResponse, error) {
res, err := s.stream.CloseAndRecv(ctx)
s.metrics.IncPutReqCounter(err == nil)
s.metrics.AddPutReqDuration(time.Since(s.start))
s.metrics.AddRequestDuration("Put", time.Since(s.start), err == nil)
return res, err
}