mirror of
https://github.com/prometheus/prometheus.git
synced 2024-09-19 23:37:31 -07:00
4fbcea73f5
``MetricPersistence.AppendSample(*model.Sample)`` -> ``MetricPersistence.AppendSample(model.Sample)``.
92 lines
2.9 KiB
Go
92 lines
2.9 KiB
Go
// Copyright 2013 Prometheus Team
|
|
// 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 main
|
|
|
|
import (
|
|
"flag"
|
|
"github.com/prometheus/prometheus/config"
|
|
"github.com/prometheus/prometheus/retrieval"
|
|
"github.com/prometheus/prometheus/retrieval/format"
|
|
"github.com/prometheus/prometheus/rules"
|
|
"github.com/prometheus/prometheus/rules/ast"
|
|
"github.com/prometheus/prometheus/storage/metric/leveldb"
|
|
"github.com/prometheus/prometheus/web"
|
|
"log"
|
|
"os"
|
|
"os/signal"
|
|
)
|
|
|
|
// Commandline flags.
|
|
var (
|
|
configFile = flag.String("configFile", "prometheus.conf", "Prometheus configuration file name.")
|
|
metricsStoragePath = flag.String("metricsStoragePath", "/tmp/metrics", "Base path for metrics storage.")
|
|
scrapeResultsQueueCapacity = flag.Int("scrapeResultsQueueCapacity", 4096, "The size of the scrape results queue.")
|
|
ruleResultsQueueCapacity = flag.Int("ruleResultsQueueCapacity", 4096, "The size of the rule results queue.")
|
|
concurrentRetrievalAllowance = flag.Int("concurrentRetrievalAllowance", 15, "The number of concurrent metrics retrieval requests allowed.")
|
|
)
|
|
|
|
func main() {
|
|
flag.Parse()
|
|
conf, err := config.LoadFromFile(*configFile)
|
|
if err != nil {
|
|
log.Fatalf("Error loading configuration from %s: %v", *configFile, err)
|
|
}
|
|
|
|
persistence, err := leveldb.NewLevelDBMetricPersistence(*metricsStoragePath)
|
|
if err != nil {
|
|
log.Fatalf("Error opening storage: %v", err)
|
|
}
|
|
|
|
go func() {
|
|
notifier := make(chan os.Signal)
|
|
signal.Notify(notifier, os.Interrupt)
|
|
<-notifier
|
|
persistence.Close()
|
|
os.Exit(0)
|
|
}()
|
|
|
|
defer persistence.Close()
|
|
|
|
// Queue depth will need to be exposed
|
|
scrapeResults := make(chan format.Result, *scrapeResultsQueueCapacity)
|
|
|
|
targetManager := retrieval.NewTargetManager(scrapeResults, *concurrentRetrievalAllowance)
|
|
targetManager.AddTargetsFromConfig(conf)
|
|
|
|
ruleResults := make(chan *rules.Result, *ruleResultsQueueCapacity)
|
|
|
|
ast.SetPersistence(persistence, nil)
|
|
ruleManager := rules.NewRuleManager(ruleResults, conf.Global.EvaluationInterval)
|
|
err = ruleManager.AddRulesFromConfig(conf)
|
|
if err != nil {
|
|
log.Fatalf("Error loading rule files: %v", err)
|
|
}
|
|
|
|
web.StartServing(persistence)
|
|
|
|
for {
|
|
select {
|
|
case scrapeResult := <-scrapeResults:
|
|
if scrapeResult.Err == nil {
|
|
persistence.AppendSample(scrapeResult.Sample)
|
|
}
|
|
case ruleResult := <-ruleResults:
|
|
for _, sample := range ruleResult.Samples {
|
|
// XXX: Wart
|
|
persistence.AppendSample(*sample)
|
|
}
|
|
}
|
|
}
|
|
}
|