fix non-updating metrics from systemd-journal

fixes #10 where metrics metrics collected from the systemd journal were not updated after some time
kumina · Apr 15, 2018 · ec3a8e5 · ec3a8e5
1 parent 1d58438
commit ec3a8e5
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/postfix_exporter.go b/postfix_exporter.go
@@ -409,6 +409,10 @@ func (e *PostfixExporter) CollectLogfileFromJournal() error {
 	e.journal.Lock()
 	defer e.journal.Unlock()
 
+	r := e.journal.Wait(time.Duration(1) * time.Second)
+	if r < 0 {
+		log.Print("error while waiting for journal!")
+	}
 	for {
 		m, c, err := e.journal.NextMessage()
 		if err != nil {