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Merge pull request #8603 from pracucci/add-tracing-span-to-eval 

Added tracing span to evaluator.eval()
pull/8605/head
Julien Pivotto 2021-03-15 17:19:36 +01:00 committed by GitHub
parent 228d23f377 7bbab380b6
commit 3c7d90c520
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1 changed files with 5 additions and 0 deletions
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5
promql/engine.go
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@ -19,6 +19,7 @@ import (
"context"
"fmt"
"math"
"reflect"
"regexp"
"runtime"
"sort"
@ -1125,6 +1126,10 @@ func (ev *evaluator) eval(expr parser.Expr) (parser.Value, storage.Warnings) {
}
numSteps := int((ev.endTimestamp-ev.startTimestamp)/ev.interval) + 1
// Create a new span to help investigate inner evaluation performances.
span, _ := opentracing.StartSpanFromContext(ev.ctx, stats.InnerEvalTime.SpanOperation()+" eval "+reflect.TypeOf(expr).String())
defer span.Finish()
switch e := expr.(type) {
case *parser.AggregateExpr:
unwrapParenExpr(&e.Param)