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https://github.com/1f349/dendrite.git
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parent
a1b7e4ef3f
commit
802f1c96f8
@ -34,27 +34,55 @@ import (
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"github.com/sirupsen/logrus"
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)
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const (
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// Event was passed to the roomserver
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MetricsOutcomeOK = "ok"
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// Event failed to be processed
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MetricsOutcomeFail = "fail"
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// Event failed auth checks
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MetricsOutcomeRejected = "rejected"
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// Terminated the transaction
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MetricsOutcomeFatal = "fatal"
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// The event has missing auth_events we need to fetch
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MetricsWorkMissingAuthEvents = "missing_auth_events"
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// No work had to be done as we had all prev/auth events
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MetricsWorkDirect = "direct"
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// The event has missing prev_events we need to call /g_m_e for
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MetricsWorkMissingPrevEvents = "missing_prev_events"
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)
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var (
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pduCountTotal = prometheus.NewCounterVec(
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prometheus.CounterOpts{
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Namespace: "dendrite",
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Subsystem: "federationapi",
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Name: "recv_pdus",
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Help: "Number of incoming PDUs from remote servers with labels for success",
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},
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[]string{"status"},
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[]string{"status"}, // 'success' or 'total'
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)
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eduCountTotal = prometheus.NewCounter(
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prometheus.CounterOpts{
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Namespace: "dendrite",
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Subsystem: "federationapi",
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Name: "recv_edus",
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Help: "Number of incoming EDUs from remote servers",
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},
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)
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processEventSummary = prometheus.NewSummaryVec(
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prometheus.SummaryOpts{
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Namespace: "dendrite",
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Subsystem: "federationapi",
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Name: "process_event",
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Help: "How long it takes to process an incoming event and what work had to be done for it",
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},
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[]string{"work", "outcome"},
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)
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)
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func init() {
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prometheus.MustRegister(
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pduCountTotal, eduCountTotal,
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pduCountTotal, eduCountTotal, processEventSummary,
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)
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}
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@ -140,6 +168,7 @@ type txnReq struct {
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// new events which the roomserver does not know about
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newEvents map[string]bool
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newEventsMutex sync.RWMutex
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work string // metrics
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}
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// A subset of FederationClient functionality that txn requires. Useful for testing.
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@ -212,6 +241,7 @@ func (t *txnReq) processTransaction(ctx context.Context) (*gomatrixserverlib.Res
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// Process the events.
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for _, e := range pdus {
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evStart := time.Now()
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if err := t.processEvent(ctx, e.Unwrap()); err != nil {
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// If the error is due to the event itself being bad then we skip
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// it and move onto the next event. We report an error so that the
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@ -233,17 +263,25 @@ func (t *txnReq) processTransaction(ctx context.Context) (*gomatrixserverlib.Res
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// our server so we should bail processing the transaction entirely.
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util.GetLogger(ctx).Warnf("Processing %s failed fatally: %s", e.EventID(), err)
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jsonErr := util.ErrorResponse(err)
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processEventSummary.WithLabelValues(t.work, MetricsOutcomeFatal).Observe(
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float64(time.Since(evStart).Nanoseconds()) / 1000.,
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)
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return nil, &jsonErr
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} else {
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// Auth errors mean the event is 'rejected' which have to be silent to appease sytest
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errMsg := ""
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outcome := MetricsOutcomeRejected
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_, rejected := err.(*gomatrixserverlib.NotAllowed)
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if !rejected {
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errMsg = err.Error()
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outcome = MetricsOutcomeFail
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}
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util.GetLogger(ctx).WithError(err).WithField("event_id", e.EventID()).WithField("rejected", rejected).Warn(
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"Failed to process incoming federation event, skipping",
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)
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processEventSummary.WithLabelValues(t.work, outcome).Observe(
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float64(time.Since(evStart).Nanoseconds()) / 1000.,
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)
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results[e.EventID()] = gomatrixserverlib.PDUResult{
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Error: errMsg,
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}
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@ -251,6 +289,9 @@ func (t *txnReq) processTransaction(ctx context.Context) (*gomatrixserverlib.Res
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} else {
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results[e.EventID()] = gomatrixserverlib.PDUResult{}
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pduCountTotal.WithLabelValues("success").Inc()
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processEventSummary.WithLabelValues(t.work, MetricsOutcomeOK).Observe(
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float64(time.Since(evStart).Nanoseconds()) / 1000.,
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)
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}
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}
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@ -452,6 +493,7 @@ func (t *txnReq) getServers(ctx context.Context, roomID string) []gomatrixserver
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func (t *txnReq) processEvent(ctx context.Context, e *gomatrixserverlib.Event) error {
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logger := util.GetLogger(ctx).WithField("event_id", e.EventID()).WithField("room_id", e.RoomID())
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t.work = "" // reset from previous event
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// Work out if the roomserver knows everything it needs to know to auth
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// the event. This includes the prev_events and auth_events.
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@ -480,6 +522,7 @@ func (t *txnReq) processEvent(ctx context.Context, e *gomatrixserverlib.Event) e
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}
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if len(stateResp.MissingAuthEventIDs) > 0 {
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t.work = MetricsWorkMissingAuthEvents
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logger.Infof("Event refers to %d unknown auth_events", len(stateResp.MissingAuthEventIDs))
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if err := t.retrieveMissingAuthEvents(ctx, e, &stateResp); err != nil {
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return fmt.Errorf("t.retrieveMissingAuthEvents: %w", err)
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@ -487,9 +530,11 @@ func (t *txnReq) processEvent(ctx context.Context, e *gomatrixserverlib.Event) e
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}
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if len(stateResp.MissingPrevEventIDs) > 0 {
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t.work = MetricsWorkMissingPrevEvents
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logger.Infof("Event refers to %d unknown prev_events", len(stateResp.MissingPrevEventIDs))
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return t.processEventWithMissingState(ctx, e, stateResp.RoomVersion)
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}
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t.work = MetricsWorkDirect
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// pass the event to the roomserver which will do auth checks
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// If the event fail auth checks, gmsl.NotAllowed error will be returned which we be silently
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@ -784,7 +829,7 @@ func (t *txnReq) lookupStateAfterEventLocally(ctx context.Context, roomID, event
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queryReq := api.QueryEventsByIDRequest{
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EventIDs: missingEventList,
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}
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util.GetLogger(ctx).Infof("Fetching missing auth events: %v", missingEventList)
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util.GetLogger(ctx).WithField("count", len(missingEventList)).Infof("Fetching missing auth events")
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var queryRes api.QueryEventsByIDResponse
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if err = t.rsAPI.QueryEventsByID(ctx, &queryReq, &queryRes); err != nil {
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return nil
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@ -854,10 +899,6 @@ retryAllowedState:
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}, nil
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}
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// getMissingEvents returns a nil backwardsExtremity if missing events were fetched and handled, else returns the new backwards extremity which we should
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// begin from. Returns an error only if we should terminate the transaction which initiated /get_missing_events
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// This function recursively calls txnReq.processEvent with the missing events, which will be processed before this function returns.
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// This means that we may recursively call this function, as we spider back up prev_events.
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func (t *txnReq) getMissingEvents(ctx context.Context, e *gomatrixserverlib.Event, roomVersion gomatrixserverlib.RoomVersion) (newEvents []*gomatrixserverlib.Event, err error) {
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logger := util.GetLogger(ctx).WithField("event_id", e.EventID()).WithField("room_id", e.RoomID())
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needed := gomatrixserverlib.StateNeededForAuth([]*gomatrixserverlib.Event{e})
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@ -26,9 +26,28 @@ import (
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"github.com/matrix-org/dendrite/keyserver/api"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/util"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/sirupsen/logrus"
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)
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var (
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deviceListUpdateCount = prometheus.NewCounterVec(
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prometheus.CounterOpts{
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Namespace: "dendrite",
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Subsystem: "keyserver",
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Name: "device_list_update",
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Help: "Number of times we have attempted to update device lists from this server",
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},
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[]string{"server"},
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)
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)
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func init() {
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prometheus.MustRegister(
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deviceListUpdateCount,
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)
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}
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// DeviceListUpdater handles device list updates from remote servers.
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//
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// In the case where we have the prev_id for an update, the updater just stores the update (after acquiring a per-user lock).
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@ -319,6 +338,7 @@ func (u *DeviceListUpdater) worker(ch chan gomatrixserverlib.ServerName) {
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}
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func (u *DeviceListUpdater) processServer(serverName gomatrixserverlib.ServerName) (time.Duration, bool) {
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deviceListUpdateCount.WithLabelValues(string(serverName)).Inc()
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requestTimeout := time.Second * 30 // max amount of time we want to spend on each request
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ctx, cancel := context.WithTimeout(context.Background(), requestTimeout)
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defer cancel()
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