| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package ping |
| 4 | |
| 5 | import ( |
| 6 | "context" |
| 7 | "sync" |
| 8 | |
| 9 | "github.com/netdata/netdata/go/plugins/plugin/go.d/pkg/pinger" |
| 10 | ) |
| 11 | |
| 12 | func (c *Collector) collect(ctx context.Context) error { |
| 13 | samples := c.collectSamples(ctx, true) |
| 14 | if len(samples) == 0 { |
| 15 | return nil |
| 16 | } |
| 17 | |
| 18 | vecMeter := c.store.Write().SnapshotMeter("").Vec("host") |
| 19 | minRTT := vecMeter.Gauge("min_rtt") |
| 20 | maxRTT := vecMeter.Gauge("max_rtt") |
| 21 | avgRTT := vecMeter.Gauge("avg_rtt") |
| 22 | stdDevRTT := vecMeter.Gauge("std_dev_rtt") |
| 23 | rttVariance := vecMeter.Gauge("rtt_variance") |
| 24 | meanJitter := vecMeter.Gauge("mean_jitter") |
| 25 | ewmaJitter := vecMeter.Gauge("ewma_jitter") |
| 26 | smaJitter := vecMeter.Gauge("sma_jitter") |
| 27 | packetLoss := vecMeter.Gauge("packet_loss") |
| 28 | packetsRecv := vecMeter.Gauge("packets_recv") |
| 29 | packetsSent := vecMeter.Gauge("packets_sent") |
| 30 | |
| 31 | for _, sample := range samples { |
| 32 | packetsRecv.WithLabelValues(sample.Host).Observe(float64(sample.PacketsRecv)) |
| 33 | packetsSent.WithLabelValues(sample.Host).Observe(float64(sample.PacketsSent)) |
| 34 | packetLoss.WithLabelValues(sample.Host).Observe(sample.PacketLossPct * 1000) |
| 35 | |
| 36 | if sample.RTT.Valid { |
| 37 | minRTT.WithLabelValues(sample.Host).Observe(float64(sample.RTT.Min.Microseconds())) |
| 38 | maxRTT.WithLabelValues(sample.Host).Observe(float64(sample.RTT.Max.Microseconds())) |
| 39 | avgRTT.WithLabelValues(sample.Host).Observe(float64(sample.RTT.Avg.Microseconds())) |
| 40 | stdDevRTT.WithLabelValues(sample.Host).Observe(float64(sample.RTT.StdDev.Microseconds())) |
| 41 | rttVariance.WithLabelValues(sample.Host).Observe(float64(sample.RTT.VarianceMicrosecondsSquared())) |
| 42 | } |
| 43 | |
| 44 | if sample.Jitter.InstantValid { |
| 45 | meanJitter.WithLabelValues(sample.Host).Observe(float64(sample.Jitter.Mean.Microseconds())) |
| 46 | } |
| 47 | if sample.Jitter.SmoothedValid { |
| 48 | ewmaJitter.WithLabelValues(sample.Host).Observe(float64(sample.Jitter.EWMA.Microseconds())) |
| 49 | smaJitter.WithLabelValues(sample.Host).Observe(float64(sample.Jitter.SMA.Microseconds())) |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | return nil |
| 54 | } |
| 55 | |
| 56 | func (c *Collector) collectSamples(ctx context.Context, track bool) []pinger.Sample { |
| 57 | if c.client == nil { |
| 58 | return nil |
| 59 | } |
| 60 | |
| 61 | var ( |
| 62 | mu sync.Mutex |
| 63 | samples = make([]pinger.Sample, 0, len(c.Hosts)) |
| 64 | wg sync.WaitGroup |
| 65 | ) |
| 66 | |
| 67 | for _, host := range c.Hosts { |
| 68 | wg.Go(func() { |
| 69 | sample, err := c.probeHost(ctx, host, track) |
| 70 | if err != nil { |
| 71 | c.Error(err) |
| 72 | return |
| 73 | } |
| 74 | |
| 75 | mu.Lock() |
| 76 | samples = append(samples, sample) |
| 77 | mu.Unlock() |
| 78 | }) |
| 79 | } |
| 80 | |
| 81 | wg.Wait() |
| 82 | |
| 83 | return samples |
| 84 | } |
| 85 | |
| 86 | func (c *Collector) probeHost(ctx context.Context, host string, track bool) (pinger.Sample, error) { |
| 87 | if track { |
| 88 | return c.client.ProbeAndTrack(ctx, host) |
| 89 | } |
| 90 | return c.client.Probe(ctx, host) |
| 91 | } |