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measure dequeue latency

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This commit is contained in:
Andre Medeiros 2022-07-13 16:28:54 -04:00
parent 80bae7ff9f
commit 94d3941005
1 changed files with 6 additions and 2 deletions
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8
internal/worker/notifications.go
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@ -93,7 +93,7 @@ func (nw *notificationsWorker) Start() error {
nw.logger.Info("starting up notifications worker", zap.Int("consumers", nw.consumers))
prefetchLimit := int64(nw.consumers * 2)
prefetchLimit := int64(nw.consumers * 4)
if err := queue.StartConsuming(prefetchLimit, pollDuration); err != nil {
return err
@ -136,9 +136,13 @@ func NewNotificationsConsumer(nw *notificationsWorker, tag int) *notificationsCo
func (nc *notificationsConsumer) Consume(delivery rmq.Delivery) {
id := delivery.Payload()
key := fmt.Sprintf("locks:accounts:%s", id)
// Measure queue latency
ttl := nc.redis.TTL(nc, key).Val().Milliseconds()
_ = nc.statsd.Histogram("apollo.dequeue.time", float64(ttl), []string{"queue:notifications"}, 1.0)
defer func() {
key := fmt.Sprintf("locks:accounts:%s", id)
if err := nc.redis.Del(nc, key).Err(); err != nil {
nc.logger.Error("failed to remove account lock", zap.Error(err), zap.String("key", key))
}