diff --git a/tests/clickhouse-test b/tests/clickhouse-test
index 8744e8bf95b..f21d1734029 100755
--- a/tests/clickhouse-test
+++ b/tests/clickhouse-test
@@ -1594,6 +1594,8 @@ def do_run_tests(jobs, test_suite: TestSuite, parallel):
 
                 queue.close()
         except Full:
+            print("Couldn't put test to the queue within timeout. Server probably hung.")
+            print_stacktraces()
             queue.close()
 
         pool.join()