diff --git a/clearml/backend_interface/metrics/reporter.py b/clearml/backend_interface/metrics/reporter.py
index 2f30a81c..834900cb 100644
--- a/clearml/backend_interface/metrics/reporter.py
+++ b/clearml/backend_interface/metrics/reporter.py
@@ -113,6 +113,8 @@ class BackgroundReportService(BackgroundMonitor, AsyncManagerMixin):
             # start background thread
             self._thread = None
             self._start()
+            logging.getLogger('clearml.reporter').warning(
+                'Event reporting sub-process lost, switching to thread based reporting')
 
         self._queue.put(ev)
         self._queue_size += 1
diff --git a/clearml/backend_interface/task/log.py b/clearml/backend_interface/task/log.py
index 94b28c3c..b7637ad7 100644
--- a/clearml/backend_interface/task/log.py
+++ b/clearml/backend_interface/task/log.py
@@ -99,6 +99,8 @@ class BackgroundLogService(BackgroundMonitor):
             # start background thread
             self._thread = None
             self._start()
+            getLogger('clearml.log').warning(
+                'Event reporting sub-process lost, switching to thread based reporting')
 
         self._queue.put(record)