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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| // Copyright 2022 PingCAP, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package kafka | ||
|
|
||
| import ( | ||
| "github.com/prometheus/client_golang/prometheus" | ||
| "github.com/rcrowley/go-metrics" | ||
| ) | ||
|
|
||
| var ( | ||
| // batch-size | ||
| batchSizeGauge = prometheus.NewGaugeVec( | ||
| prometheus.GaugeOpts{ | ||
| Namespace: "ticdc", | ||
| Subsystem: "sink", | ||
| Name: "kafka_producer_batch_size", | ||
| Help: "the number of bytes sent per partition per request for all topics", | ||
| }, []string{"capture", "changefeed"}) | ||
|
|
||
| // record-send-rate | ||
| recordSendRateGauge = prometheus.NewGaugeVec( | ||
| prometheus.GaugeOpts{ | ||
| Namespace: "ticdc", | ||
| Subsystem: "sink", | ||
| Name: "kafka_producer_record_send_rate", | ||
| Help: "Records/second sent to all topics", | ||
| }, []string{"capture", "changefeed"}) | ||
|
|
||
| // records-per-request | ||
| recordPerRequestGauge = prometheus.NewGaugeVec( | ||
| prometheus.GaugeOpts{ | ||
| Namespace: "ticdc", | ||
| Subsystem: "sink", | ||
| Name: "kafka_producer_records_per_request", | ||
| Help: "the number of records sent per request for all topics", | ||
| }, []string{"capture", "changefeed"}) | ||
|
|
||
| // compression-ratio | ||
| compressionRatioGauge = prometheus.NewGaugeVec( | ||
| prometheus.GaugeOpts{ | ||
| Namespace: "ticdc", | ||
| Subsystem: "sink", | ||
| Name: "kafka_producer_compression_ratio", | ||
| Help: "the compression ratio times 100 of record batches for all topics", | ||
| }, []string{"capture", "changefeed"}) | ||
| ) | ||
|
|
||
| // InitMetrics registers all metrics in this file | ||
| func InitMetrics(registry *prometheus.Registry) { | ||
| registry.MustRegister(batchSizeGauge) | ||
| registry.MustRegister(recordSendRateGauge) | ||
| registry.MustRegister(recordPerRequestGauge) | ||
| registry.MustRegister(compressionRatioGauge) | ||
| } | ||
|
|
||
| // sarama metrics names, see https://pkg.go.dev/github.com/Shopify/sarama#pkg-overview | ||
| const ( | ||
| batchSizeMetricName = "batch-size" | ||
| recordSendRateMetricName = "record-send-rate" | ||
| recordPerRequestMetricName = "records-per-request" | ||
| compressionRatioMetricName = "compression-ratio" | ||
| ) | ||
|
|
||
| type saramaMetricsMonitor struct { | ||
| captureAddr string | ||
| changefeedID string | ||
|
|
||
| registry metrics.Registry | ||
| } | ||
|
|
||
| // CollectMetrics collect all monitored metrics | ||
| func (sm *saramaMetricsMonitor) CollectMetrics() { | ||
| batchSizeMetric := sm.registry.Get(batchSizeMetricName) | ||
| if histogram, ok := batchSizeMetric.(metrics.Histogram); ok { | ||
| batchSizeGauge.WithLabelValues(sm.captureAddr, sm.changefeedID).Set(histogram.Mean()) | ||
| } | ||
|
|
||
| recordSendRateMetric := sm.registry.Get(recordSendRateMetricName) | ||
| if meter, ok := recordSendRateMetric.(metrics.Meter); ok { | ||
| recordSendRateGauge.WithLabelValues(sm.captureAddr, sm.changefeedID).Set(meter.Rate1()) | ||
| } | ||
|
|
||
| recordPerRequestMetric := sm.registry.Get(recordPerRequestMetricName) | ||
| if histogram, ok := recordPerRequestMetric.(metrics.Histogram); ok { | ||
| recordPerRequestGauge.WithLabelValues(sm.captureAddr, sm.changefeedID).Set(histogram.Mean()) | ||
| } | ||
|
|
||
| compressionRatioMetric := sm.registry.Get(compressionRatioMetricName) | ||
| if histogram, ok := compressionRatioMetric.(metrics.Histogram); ok { | ||
| compressionRatioGauge.WithLabelValues(sm.captureAddr, sm.changefeedID).Set(histogram.Mean()) | ||
| } | ||
| } | ||
|
|
||
| func NewSaramaMetricsMonitor(registry metrics.Registry, captureAddr, changefeedID string) *saramaMetricsMonitor { | ||
| return &saramaMetricsMonitor{ | ||
| captureAddr: captureAddr, | ||
| changefeedID: changefeedID, | ||
| registry: registry, | ||
| } | ||
| } | ||
|
|
||
| func (sm *saramaMetricsMonitor) Cleanup() { | ||
| batchSizeGauge.DeleteLabelValues(sm.captureAddr, sm.changefeedID) | ||
| recordSendRateGauge.DeleteLabelValues(sm.captureAddr, sm.changefeedID) | ||
| recordPerRequestGauge.DeleteLabelValues(sm.captureAddr, sm.changefeedID) | ||
| compressionRatioGauge.DeleteLabelValues(sm.captureAddr, sm.changefeedID) | ||
| } |
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