Do not forget to call `defer glog.Flush()` in our applications

monitoring/go/grains/grains.go

 // grains is the Grafana/InfluxDB Proxy Server.
 //
 // InfluxDB and Grafana are not very secure, Grafana is JS only and talks to
 // InfluxDB which accepts name and password as query parameters.  Grafana has a
 // config.js file where you list the InfluxDB databases along with the name and
 // password to access them!
 //
 // This is obviously unacceptable from a security standpoint, so we need a
 // solution that uses both InfluxDB and Grafana, protects access to them, and
 // obviates the need to put name and passwords to InfluxDB into the config.js.
@@ skipping 17 matching lines @@
 package main
 
 import (
         "flag"
         "fmt"
         "net/http"
         "net/http/httputil"
         "net/url"
         "strings"
 
+        "github.com/golang/glog"
         "skia.googlesource.com/buildbot.git/go/login"
         "skia.googlesource.com/buildbot.git/go/metadata"
         "skia.googlesource.com/buildbot.git/perf/go/flags"
-
-        "github.com/golang/glog"
 )
 
 const (
         COOKIESALT_METADATA_KEY        = "cookiesalt"
         INFLUXDB_NAME_METADATA_KEY     = "influxdb_name"
         INFLUXDB_PASSWORD_METADATA_KEY = "influxdb_password"
         CLIENT_ID_METADATA_KEY         = "client_id"
         CLIENT_SECRET_METADATA_KEY     = "client_secret"
 )
 
@@ skipping 41 matching lines @@
                 p.InfluxDB.ServeHTTP(w, r)
         } else {
                 glog.Infof("Serving static files.")
                 p.Grafana.ServeHTTP(w, r)
         }
 }
 
 func main() {
         flag.Parse()
         flags.Log()
+        defer glog.Flush()
         if *useMetadata {
                 *clientID = metadata.MustGet(CLIENT_ID_METADATA_KEY)
                 *clientSecret = metadata.MustGet(CLIENT_SECRET_METADATA_KEY)
                 *cookieSalt = metadata.MustGet(COOKIESALT_METADATA_KEY)
                 *influxDbName = metadata.MustGet(INFLUXDB_NAME_METADATA_KEY)
                 *influxDbPassword = metadata.MustGet(INFLUXDB_PASSWORD_METADATA_KEY)
         }
         login.Init(*clientID, *clientSecret, *redirectURL, *cookieSalt)
         http.Handle("/", NewProxy(*influxDbApiPort, *grafanaDir))
         http.HandleFunc("/oauth2callback/", login.OAuth2CallbackHandler)
         glog.Fatal(http.ListenAndServe(*port, nil))
 }