milvus/pkg/metrics/msgstream_metrics.go

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// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package metrics
import "github.com/prometheus/client_golang/prometheus"
const (
SendMsgLabel = "produce"
ReceiveMsgLabel = "consume" // not used
CreateProducerLabel = "create_producer"
CreateConsumerLabel = "create_consumer"
msgStreamOpType = "message_op_type"
)
var (
NumConsumers = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: milvusNamespace,
Subsystem: "msg_queue",
Name: "consumer_num",
Help: "number of consumers",
}, []string{
roleNameLabelName,
nodeIDLabelName,
})
MsgStreamRequestLatency = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: milvusNamespace,
Subsystem: "msgstream",
Name: "request_latency",
Help: "request latency on the client side ",
Buckets: buckets,
}, []string{msgStreamOpType})
MsgStreamOpCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: milvusNamespace,
Subsystem: "msgstream",
Name: "op_count",
Help: "count of stream message operation",
}, []string{msgStreamOpType, statusLabelName})
)
// RegisterMsgStreamMetrics registers msg stream metrics
func RegisterMsgStreamMetrics(registry *prometheus.Registry) {
registry.MustRegister(NumConsumers)
registry.MustRegister(MsgStreamRequestLatency)
registry.MustRegister(MsgStreamOpCounter)
}