Frontend queues HTTP requests, dispatches them to backends, and handles retries for requests which failed.
| 69 | // Frontend queues HTTP requests, dispatches them to backends, and handles retries |
| 70 | // for requests which failed. |
| 71 | type Frontend struct { |
| 72 | services.Service |
| 73 | |
| 74 | cfg Config |
| 75 | log log.Logger |
| 76 | limits Limits |
| 77 | retry *transport.Retry |
| 78 | |
| 79 | requestQueue *queue.RequestQueue |
| 80 | activeUsers *users.ActiveUsersCleanupService |
| 81 | |
| 82 | // Subservices manager. |
| 83 | subservices *services.Manager |
| 84 | subservicesWatcher *services.FailureWatcher |
| 85 | |
| 86 | // Metrics. |
| 87 | queueLength *prometheus.GaugeVec |
| 88 | discardedRequests *prometheus.CounterVec |
| 89 | numClients prometheus.GaugeFunc |
| 90 | queueDuration prometheus.Histogram |
| 91 | } |
| 92 | |
| 93 | type request struct { |
| 94 | enqueueTime time.Time |
nothing calls this directly
no outgoing calls
no test coverage detected