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Add CS sendevent metrics

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Squashed commit of the following:

commit c38c39107b6dda0c8e6320d61da2365c47eea4e9
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date:   Thu Dec 17 10:13:09 2020 +0000

    Update buckets

commit 5a3bcc8bd4167150374827b0e42a0dea0366beff
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date:   Thu Dec 17 09:41:43 2020 +0000

    Update buckets

commit 78dff8165ddf596e28af04faf56466752ebc17af
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date:   Thu Dec 17 09:37:27 2020 +0000

    Register sendEventDuration

commit 612b0f3d84f1547ff30131f7b084baf609edab52
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date:   Thu Dec 17 09:35:59 2020 +0000

    sendevent metrics
This commit is contained in:
Neil Alexander 2020-12-17 10:52:31 +00:00
parent e1ace7e44a
commit 9a1ef81fa2
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1 changed files with 30 additions and 0 deletions
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30
clientapi/routing/sendevent.go
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@ -17,6 +17,7 @@ package routing
import (
"net/http"
"sync"
"time"
"github.com/matrix-org/dendrite/clientapi/httputil"
"github.com/matrix-org/dendrite/clientapi/jsonerror"
@ -27,6 +28,7 @@ import (
userapi "github.com/matrix-org/dendrite/userapi/api"
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/util"
"github.com/prometheus/client_golang/prometheus"
"github.com/sirupsen/logrus"
)
@ -40,6 +42,25 @@ var (
userRoomSendMutexes sync.Map // (roomID+userID) -> mutex. mutexes to ensure correct ordering of sendEvents
)
func init() {
prometheus.MustRegister(sendEventDuration)
}
var sendEventDuration = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "dendrite",
Subsystem: "clientapi",
Name: "sendevent_duration_millis",
Help: "How long it takes to build and submit a new event from the client API to the roomserver",
Buckets: []float64{ // milliseconds
5, 10, 25, 50, 75, 100, 250, 500,
1000, 2000, 3000, 4000, 5000, 6000,
7000, 8000, 9000, 10000, 15000, 20000,
},
},
[]string{"action"},
)
// SendEvent implements:
// /rooms/{roomID}/send/{eventType}
// /rooms/{roomID}/send/{eventType}/{txnID}
@ -75,10 +96,12 @@ func SendEvent(
mutex.(*sync.Mutex).Lock()
defer mutex.(*sync.Mutex).Unlock()
startedGeneratingEvent := time.Now()
e, resErr := generateSendEvent(req, device, roomID, eventType, stateKey, cfg, rsAPI)
if resErr != nil {
return *resErr
}
timeToGenerateEvent := time.Since(startedGeneratingEvent)
var txnAndSessionID *api.TransactionID
if txnID != nil {
@ -90,6 +113,7 @@ func SendEvent(
// pass the new event to the roomserver and receive the correct event ID
// event ID in case of duplicate transaction is discarded
startedSubmittingEvent := time.Now()
if err := api.SendEvents(
req.Context(), rsAPI,
api.KindNew,
@ -102,6 +126,7 @@ func SendEvent(
util.GetLogger(req.Context()).WithError(err).Error("SendEvents failed")
return jsonerror.InternalServerError()
}
timeToSubmitEvent := time.Since(startedSubmittingEvent)
util.GetLogger(req.Context()).WithFields(logrus.Fields{
"event_id": e.EventID(),
"room_id": roomID,
@ -117,6 +142,11 @@ func SendEvent(
txnCache.AddTransaction(device.AccessToken, *txnID, &res)
}
// Take a note of how long it took to generate the event vs submit
// it to the roomserver.
sendEventDuration.With(prometheus.Labels{"action": "build"}).Observe(float64(timeToGenerateEvent.Milliseconds()))
sendEventDuration.With(prometheus.Labels{"action": "submit"}).Observe(float64(timeToSubmitEvent.Milliseconds()))
return res
}