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rps.go
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rps.go
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// Copyright (c) 2021 Terminus, 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,
// 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 chart
import (
"context"
"fmt"
"strconv"
"time"
"google.golang.org/protobuf/types/known/structpb"
metricpb "github.com/erda-project/erda-proto-go/core/monitor/metric/pb"
"github.com/erda-project/erda-proto-go/msp/apm/service/pb"
"github.com/erda-project/erda/pkg/common/errors"
"github.com/erda-project/erda/pkg/math"
)
type RpsChart struct {
*BaseChart
}
func (rps *RpsChart) GetChart(ctx context.Context) (*pb.ServiceChart, error) {
statement := fmt.Sprintf("SELECT rateps(elapsed_count::field) "+
"FROM application_http,application_rpc,application_db,application_cache,application_mq "+
"WHERE (target_terminus_key::tag=$terminus_key OR source_terminus_key::tag=$terminus_key) "+
"AND target_service_id::tag=$service_id "+
"GROUP BY time(%s)", rps.Interval)
queryParams := map[string]*structpb.Value{
"terminus_key": structpb.NewStringValue(rps.TenantId),
"service_id": structpb.NewStringValue(rps.ServiceId),
}
request := &metricpb.QueryWithInfluxFormatRequest{
Start: strconv.FormatInt(rps.StartTime, 10),
End: strconv.FormatInt(rps.EndTime, 10),
Statement: statement,
Params: queryParams,
}
response, err := rps.Metric.QueryWithInfluxFormat(ctx, request)
if err != nil {
return nil, errors.NewInternalServerError(err)
}
rpsCharts := make([]*pb.Chart, 0, 10)
rows := response.Results[0].Series[0].Rows
maxValue := float64(0)
for i, row := range rows {
rpsChart := new(pb.Chart)
timestamp := int64(0)
if i == 0 {
date := row.Values[0].GetStringValue()
parse, err := time.ParseInLocation(Layout, date, time.Local)
if err != nil {
return nil, err
}
timestamp = parse.UnixNano() / int64(time.Millisecond)
} else {
timestampNano := row.Values[0].GetNumberValue()
timestamp = int64(timestampNano) / int64(time.Millisecond)
}
rpsChart.Timestamp = timestamp
rpsChart.Value = math.DecimalPlacesWithDigitsNumber(row.Values[1].GetNumberValue(), 2)
rpsChart.Dimension = "RPS"
if maxValue < rpsChart.Value {
maxValue = rpsChart.Value
}
rpsCharts = append(rpsCharts, rpsChart)
}
return &pb.ServiceChart{Type: pb.ChartType_RPS.String(), MaxValue: maxValue, View: rpsCharts}, err
}