milvus/internal/metrics/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 (
// nolint:gosec
_ "net/http/pprof"
"github.com/milvus-io/milvus/internal/management"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
)
const (
milvusNamespace = "milvus"
AbandonLabel = "abandon"
SuccessLabel = "success"
FailLabel = "fail"
TotalLabel = "total"
InsertLabel = "insert"
DeleteLabel = "delete"
SearchLabel = "search"
QueryLabel = "query"
CacheHitLabel = "hit"
CacheMissLabel = "miss"
TimetickLabel = "timetick"
AllLabel = "all"
UnissuedIndexTaskLabel = "unissued"
InProgressIndexTaskLabel = "in-progress"
FinishedIndexTaskLabel = "finished"
FailedIndexTaskLabel = "failed"
RecycledIndexTaskLabel = "recycled"
SealedSegmentLabel = "Sealed"
GrowingSegmentLabel = "Growing"
FlushedSegmentLabel = "Flushed"
FlushingSegmentLabel = "Flushing"
DropedSegmentLabel = "Dropped"
nodeIDLabelName = "node_id"
statusLabelName = "status"
indexTaskStatusLabelName = "index_task_status"
msgTypeLabelName = "msg_type"
collectionIDLabelName = "collection_id"
channelNameLabelName = "channel_name"
functionLabelName = "function_name"
queryTypeLabelName = "query_type"
collectionName = "collection_name"
segmentStateLabelName = "segment_state"
usernameLabelName = "username"
roleNameLabelName = "role_name"
cacheNameLabelName = "cache_name"
cacheStateLabelName = "cache_state"
)
var (
// buckets involves durations in milliseconds,
// [1 2 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 1.31072e+05]
buckets = prometheus.ExponentialBuckets(1, 2, 18)
)
//Register serves prometheus http service
func Register(r *prometheus.Registry) {
management.Register(&management.HTTPHandler{
Path: "/metrics",
Handler: promhttp.HandlerFor(r, promhttp.HandlerOpts{}),
})
management.Register(&management.HTTPHandler{
Path: "/metrics_default",
Handler: promhttp.Handler(),
})
}