mirror of
https://github.com/prometheus/prometheus.git
synced 2024-11-09 23:24:05 -08:00
6ebfbd2d54
For: #14355 This commit updates Prometheus to adopt stdlib's log/slog package in favor of go-kit/log. As part of converting to use slog, several other related changes are required to get prometheus working, including: - removed unused logging util func `RateLimit()` - forward ported the util/logging/Deduper logging by implementing a small custom slog.Handler that does the deduping before chaining log calls to the underlying real slog.Logger - move some of the json file logging functionality to use prom/common package functionality - refactored some of the new json file logging for scraping - changes to promql.QueryLogger interface to swap out logging methods for relevant slog sugar wrappers - updated lots of tests that used/replicated custom logging functionality, attempting to keep the logical goal of the tests consistent after the transition - added a healthy amount of `if logger == nil { $makeLogger }` type conditional checks amongst various functions where none were provided -- old code that used the go-kit/log.Logger interface had several places where there were nil references when trying to use functions like `With()` to add keyvals on the new *slog.Logger type Signed-off-by: TJ Hoplock <t.hoplock@gmail.com>
59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
// Copyright 2019 The Prometheus Authors
|
|
// 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 logging
|
|
|
|
import (
|
|
"bytes"
|
|
"log/slog"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/prometheus/common/promslog"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func TestDedupe(t *testing.T) {
|
|
var buf bytes.Buffer
|
|
d := Dedupe(promslog.New(&promslog.Config{Writer: &buf}), 100*time.Millisecond)
|
|
dlog := slog.New(d)
|
|
defer d.Stop()
|
|
|
|
// Log 10 times quickly, ensure they are deduped.
|
|
for i := 0; i < 10; i++ {
|
|
dlog.Info("test", "hello", "world")
|
|
}
|
|
|
|
// Trim empty lines
|
|
lines := []string{}
|
|
for _, line := range strings.Split(buf.String(), "\n") {
|
|
if line != "" {
|
|
lines = append(lines, line)
|
|
}
|
|
}
|
|
require.Len(t, lines, 1)
|
|
|
|
// Wait, then log again, make sure it is logged.
|
|
time.Sleep(200 * time.Millisecond)
|
|
dlog.Info("test", "hello", "world")
|
|
// Trim empty lines
|
|
lines = []string{}
|
|
for _, line := range strings.Split(buf.String(), "\n") {
|
|
if line != "" {
|
|
lines = append(lines, line)
|
|
}
|
|
}
|
|
require.Len(t, lines, 2)
|
|
}
|