--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -3446,2 +3446,3 @@ XLogFileInitInternal(XLogSegNo logsegno, TimeLineID logtli,
          */
+pg_usleep(100000);
         installed_segno = logsegno;