From: Ilya Dryomov <idryomov@gmail.com>
Date: Mon, 7 Apr 2025 10:40:50 +0000 (+0200)
Subject: test/librbd/test_notify.py: force line-buffered output
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=dc008248597a979a52575f1fecc14b2c377a5822;p=ceph.git

test/librbd/test_notify.py: force line-buffered output

"master" and "slave" invocations are intended to run in parallel and
coordinate between themselves.  Ensure that their respective output is
properly timestamped and ordered in teuthology.log file.

Fixes: https://tracker.ceph.com/issues/70831
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
(cherry picked from commit 49dbabcecec7c458a6d2ddfbd8e14a6ec419b953)
---

diff --git a/src/test/librbd/test_notify.py b/src/test/librbd/test_notify.py
index 03ecf1263a8cd..4840add8dc452 100755
--- a/src/test/librbd/test_notify.py
+++ b/src/test/librbd/test_notify.py
@@ -1,4 +1,5 @@
 #!/usr/bin/python3
+import functools
 import os
 import sys
 import time
@@ -14,6 +15,8 @@ from rbd import (RBD,
                  RBD_FEATURE_FAST_DIFF,
                  RBD_FLAG_OBJECT_MAP_INVALID)
 
+print = functools.partial(print, flush=True)
+
 POOL_NAME='rbd'
 PARENT_IMG_NAME='test_notify_parent'
 CLONE_IMG_NAME='test_notify_clone'