mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-01 14:47:38 +00:00
84 lines
2.7 KiB
Go
84 lines
2.7 KiB
Go
package main
|
|
|
|
import (
|
|
"flag"
|
|
"fmt"
|
|
"net/http"
|
|
"os"
|
|
"time"
|
|
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmstorage"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/buildinfo"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/cgroup"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/envflag"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/fs"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/procutil"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage"
|
|
)
|
|
|
|
var (
|
|
httpListenAddr = flag.String("httpListenAddr", ":8428", "TCP address to listen for http connections")
|
|
minScrapeInterval = flag.Duration("dedup.minScrapeInterval", 0, "Remove superflouos samples from time series if they are located closer to each other than this duration. "+
|
|
"This may be useful for reducing overhead when multiple identically configured Prometheus instances write data to the same VictoriaMetrics. "+
|
|
"Deduplication is disabled if the -dedup.minScrapeInterval is 0")
|
|
)
|
|
|
|
func main() {
|
|
// Write flags and help message to stdout, since it is easier to grep or pipe.
|
|
flag.CommandLine.SetOutput(os.Stdout)
|
|
envflag.Parse()
|
|
buildinfo.Init()
|
|
logger.Init()
|
|
cgroup.UpdateGOMAXPROCSToCPUQuota()
|
|
logger.Infof("starting VictoriaMetrics at %q...", *httpListenAddr)
|
|
startTime := time.Now()
|
|
storage.SetMinScrapeIntervalForDeduplication(*minScrapeInterval)
|
|
vmstorage.Init()
|
|
vmselect.Init()
|
|
vminsert.Init()
|
|
startSelfScraper()
|
|
|
|
go httpserver.Serve(*httpListenAddr, requestHandler)
|
|
logger.Infof("started VictoriaMetrics in %.3f seconds", time.Since(startTime).Seconds())
|
|
|
|
sig := procutil.WaitForSigterm()
|
|
logger.Infof("received signal %s", sig)
|
|
|
|
stopSelfScraper()
|
|
|
|
logger.Infof("gracefully shutting down webservice at %q", *httpListenAddr)
|
|
startTime = time.Now()
|
|
if err := httpserver.Stop(*httpListenAddr); err != nil {
|
|
logger.Fatalf("cannot stop the webservice: %s", err)
|
|
}
|
|
vminsert.Stop()
|
|
logger.Infof("successfully shut down the webservice in %.3f seconds", time.Since(startTime).Seconds())
|
|
|
|
vmstorage.Stop()
|
|
vmselect.Stop()
|
|
|
|
fs.MustStopDirRemover()
|
|
|
|
logger.Infof("the VictoriaMetrics has been stopped in %.3f seconds", time.Since(startTime).Seconds())
|
|
}
|
|
|
|
func requestHandler(w http.ResponseWriter, r *http.Request) bool {
|
|
if r.RequestURI == "/" {
|
|
fmt.Fprintf(w, "Single-node VictoriaMetrics. See docs at https://victoriametrics.github.io/")
|
|
return true
|
|
}
|
|
if vminsert.RequestHandler(w, r) {
|
|
return true
|
|
}
|
|
if vmselect.RequestHandler(w, r) {
|
|
return true
|
|
}
|
|
if vmstorage.RequestHandler(w, r) {
|
|
return true
|
|
}
|
|
return false
|
|
}
|