From e7f4497e3634aa9d55e8f18b9e7efd299794b4ee Mon Sep 17 00:00:00 2001
From: allegroai <>
Date: Sun, 5 Nov 2023 21:03:14 +0200
Subject: [PATCH] Fix potential threading issues when setting self.lock to None

---
 clearml/backend_interface/task/log.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/clearml/backend_interface/task/log.py b/clearml/backend_interface/task/log.py
index 9f348cdc..9e67cd38 100644
--- a/clearml/backend_interface/task/log.py
+++ b/clearml/backend_interface/task/log.py
@@ -263,8 +263,8 @@ class TaskHandler(BufferingHandler):
         # flush pending logs
         if not self._task_id:
             return
-        # avoid deadlocks just skip the lock, we are shutting down anyway
-        self.lock = None
+        # Never null the lock, it might be used by internal Python at some point
+        # self.lock = None
         self._task_id = None
 
         # shut down the TaskHandler, from this point onwards. No events will be logged