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Fix graceful shutdown

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This commit is contained in:
Neil Alexander 2022-04-27 15:29:49 +01:00
parent 103795d33a
commit 923f789ca3
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GPG key ID: A02A2019A2BB0944
4 changed files with 33 additions and 21 deletions
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13
federationapi/queue/destinationqueue.go
View file

@ -78,7 +78,7 @@ func (oq *destinationQueue) sendEvent(event *gomatrixserverlib.HeaderedEvent, re
// this destination queue. We'll then be able to retrieve the PDU
// later.
if err := oq.db.AssociatePDUWithDestination(
context.TODO(),
oq.process.Context(),
"", // TODO: remove this, as we don't need to persist the transaction ID
oq.destination, // the destination server name
receipt, // NIDs from federationapi_queue_json table
@ -122,7 +122,7 @@ func (oq *destinationQueue) sendEDU(event *gomatrixserverlib.EDU, receipt *share
// this destination queue. We'll then be able to retrieve the PDU
// later.
if err := oq.db.AssociateEDUWithDestination(
context.TODO(),
oq.process.Context(),
oq.destination, // the destination server name
receipt, // NIDs from federationapi_queue_json table
event.Type,
@ -177,7 +177,7 @@ func (oq *destinationQueue) getPendingFromDatabase() {
// Check to see if there's anything to do for this server
// in the database.
retrieved := false
ctx := context.Background()
ctx := oq.process.Context()
oq.pendingMutex.Lock()
defer oq.pendingMutex.Unlock()
@ -271,6 +271,9 @@ func (oq *destinationQueue) backgroundSend() {
// restarted automatically the next time we have an event to
// send.
return
case <-oq.process.Context().Done():
// The parent process is shutting down, so stop.
return
}
// If we are backing off this server then wait for the
@ -420,13 +423,13 @@ func (oq *destinationQueue) nextTransaction(
// Clean up the transaction in the database.
if pduReceipts != nil {
//logrus.Infof("Cleaning PDUs %q", pduReceipt.String())
if err = oq.db.CleanPDUs(context.Background(), oq.destination, pduReceipts); err != nil {
if err = oq.db.CleanPDUs(oq.process.Context(), oq.destination, pduReceipts); err != nil {
logrus.WithError(err).Errorf("Failed to clean PDUs for server %q", t.Destination)
}
}
if eduReceipts != nil {
//logrus.Infof("Cleaning EDUs %q", eduReceipt.String())
if err = oq.db.CleanEDUs(context.Background(), oq.destination, eduReceipts); err != nil {
if err = oq.db.CleanEDUs(oq.process.Context(), oq.destination, eduReceipts); err != nil {
logrus.WithError(err).Errorf("Failed to clean EDUs for server %q", t.Destination)
}
}

13
federationapi/queue/queue.go
View file

@ -15,7 +15,6 @@
package queue
import (
"context"
"crypto/ed25519"
"encoding/json"
"fmt"
@ -105,14 +104,14 @@ func NewOutgoingQueues(
// Look up which servers we have pending items for and then rehydrate those queues.
if !disabled {
serverNames := map[gomatrixserverlib.ServerName]struct{}{}
if names, err := db.GetPendingPDUServerNames(context.Background()); err == nil {
if names, err := db.GetPendingPDUServerNames(process.Context()); err == nil {
for _, serverName := range names {
serverNames[serverName] = struct{}{}
}
} else {
log.WithError(err).Error("Failed to get PDU server names for destination queue hydration")
}
if names, err := db.GetPendingEDUServerNames(context.Background()); err == nil {
if names, err := db.GetPendingEDUServerNames(process.Context()); err == nil {
for _, serverName := range names {
serverNames[serverName] = struct{}{}
}
@ -215,7 +214,7 @@ func (oqs *OutgoingQueues) SendEvent(
// Check if any of the destinations are prohibited by server ACLs.
for destination := range destmap {
if api.IsServerBannedFromRoom(
context.TODO(),
oqs.process.Context(),
oqs.rsAPI,
ev.RoomID(),
destination,
@ -238,7 +237,7 @@ func (oqs *OutgoingQueues) SendEvent(
return fmt.Errorf("json.Marshal: %w", err)
}
nid, err := oqs.db.StoreJSON(context.TODO(), string(headeredJSON))
nid, err := oqs.db.StoreJSON(oqs.process.Context(), string(headeredJSON))
if err != nil {
return fmt.Errorf("sendevent: oqs.db.StoreJSON: %w", err)
}
@ -286,7 +285,7 @@ func (oqs *OutgoingQueues) SendEDU(
if result := gjson.GetBytes(e.Content, "room_id"); result.Exists() {
for destination := range destmap {
if api.IsServerBannedFromRoom(
context.TODO(),
oqs.process.Context(),
oqs.rsAPI,
result.Str,
destination,
@ -310,7 +309,7 @@ func (oqs *OutgoingQueues) SendEDU(
return fmt.Errorf("json.Marshal: %w", err)
}
nid, err := oqs.db.StoreJSON(context.TODO(), string(ephemeralJSON))
nid, err := oqs.db.StoreJSON(oqs.process.Context(), string(ephemeralJSON))
if err != nil {
return fmt.Errorf("sendevent: oqs.db.StoreJSON: %w", err)
}

12
setup/base/base.go
View file

@ -469,14 +469,14 @@ func (b *BaseDendrite) SetupAndServeHTTP(
}
minwinsvc.SetOnExit(b.ProcessContext.ShutdownDendrite)
b.WaitForShutdown()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
_ = internalServ.Shutdown(ctx)
_ = externalServ.Shutdown(ctx)
<-b.ProcessContext.WaitForShutdown()
logrus.Infof("Stopping HTTP listeners")
_ = internalServ.Shutdown(context.Background())
_ = externalServ.Shutdown(context.Background())
logrus.Infof("Stopped HTTP listeners")
b.WaitForShutdown()
}
func (b *BaseDendrite) WaitForShutdown() {

16
setup/jetstream/helpers.go
View file

@ -35,6 +35,16 @@ func JetStreamConsumer(
}
go func() {
for {
// If the parent context has given up then there's no point in
// carrying on doing anything, so stop the listener.
select {
case <-ctx.Done():
if err := sub.Unsubscribe(); err != nil {
logrus.WithContext(ctx).Warnf("Failed to unsubscribe %q", durable)
}
return
default:
}
// The context behaviour here is surprising — we supply a context
// so that we can interrupt the fetch if we want, but NATS will still
// enforce its own deadline (roughly 5 seconds by default). Therefore
@ -65,18 +75,18 @@ func JetStreamConsumer(
continue
}
msg := msgs[0]
if err = msg.InProgress(); err != nil {
if err = msg.InProgress(nats.Context(ctx)); err != nil {
logrus.WithContext(ctx).WithField("subject", subj).Warn(fmt.Errorf("msg.InProgress: %w", err))
sentry.CaptureException(err)
continue
}
if f(ctx, msg) {
if err = msg.AckSync(); err != nil {
if err = msg.AckSync(nats.Context(ctx)); err != nil {
logrus.WithContext(ctx).WithField("subject", subj).Warn(fmt.Errorf("msg.AckSync: %w", err))
sentry.CaptureException(err)
}
} else {
if err = msg.Nak(); err != nil {
if err = msg.Nak(nats.Context(ctx)); err != nil {
logrus.WithContext(ctx).WithField("subject", subj).Warn(fmt.Errorf("msg.Nak: %w", err))
sentry.CaptureException(err)
}