| 38 | } |
| 39 | |
| 40 | func newMetrics(registerer prometheus.Registerer) *Metrics { |
| 41 | batchesDropped := prometheus.NewCounterVec(prometheus.CounterOpts{ |
| 42 | Namespace: "agent", |
| 43 | Subsystem: "boundary_log_proxy", |
| 44 | Name: "batches_dropped_total", |
| 45 | Help: "Total number of boundary log batches dropped before reaching coderd. " + |
| 46 | "Reason: buffer_full = the agent's internal buffer is full, meaning boundary is producing logs faster than the agent can forward them to coderd; " + |
| 47 | "forward_failed = the agent failed to send the batch to coderd, potentially because coderd is unreachable or the connection was interrupted.", |
| 48 | }, []string{"reason"}) |
| 49 | registerer.MustRegister(batchesDropped) |
| 50 | |
| 51 | logsDropped := prometheus.NewCounterVec(prometheus.CounterOpts{ |
| 52 | Namespace: "agent", |
| 53 | Subsystem: "boundary_log_proxy", |
| 54 | Name: "logs_dropped_total", |
| 55 | Help: "Total number of individual boundary log entries dropped before reaching coderd. " + |
| 56 | "Reason: buffer_full = the agent's internal buffer is full; " + |
| 57 | "forward_failed = the agent failed to send the batch to coderd; " + |
| 58 | "boundary_channel_full = boundary's internal send channel overflowed, meaning boundary is generating logs faster than it can batch and send them; " + |
| 59 | "boundary_batch_full = boundary's outgoing batch buffer overflowed after a failed flush, meaning boundary could not write to the agent's socket.", |
| 60 | }, []string{"reason"}) |
| 61 | registerer.MustRegister(logsDropped) |
| 62 | |
| 63 | batchesForwarded := prometheus.NewCounter(prometheus.CounterOpts{ |
| 64 | Namespace: "agent", |
| 65 | Subsystem: "boundary_log_proxy", |
| 66 | Name: "batches_forwarded_total", |
| 67 | Help: "Total number of boundary log batches successfully forwarded to coderd. " + |
| 68 | "Compare with batches_dropped_total to compute a drop rate.", |
| 69 | }) |
| 70 | registerer.MustRegister(batchesForwarded) |
| 71 | |
| 72 | return &Metrics{ |
| 73 | batchesDropped: batchesDropped, |
| 74 | logsDropped: logsDropped, |
| 75 | batchesForwarded: batchesForwarded, |
| 76 | } |
| 77 | } |