promtail: fix infinite loop in file target (fixes #5350) (#6135)

4 years ago · 21f69643b3
parent f91f6a354b
commit 21f69643b3
1 changed files with 5 additions and 1 deletions
--- a/clients/pkg/promtail/targets/file/filetarget.go
+++ b/clients/pkg/promtail/targets/file/filetarget.go
@ -168,7 +168,11 @@ func (t *FileTarget) run() {

 	for {
 		select {
-		case event := <-t.fileEventWatcher:
+		case event, ok := <-t.fileEventWatcher:
+			if !ok {
+				// fileEventWatcher has been closed
+				return
+			}
 			switch event.Op {
 			case fsnotify.Create:
 				t.startTailing([]string{event.Name})