Fix: Consolidate multi-line error logs into single-line JSON format (#11249)

neubig · openhands-agent · web-flow · commit d1f887760051 · 2025-10-06T13:16:58.000-04:00
Co-authored-by: openhands &lt;openhands@all-hands.dev&gt;
diff --git a/openhands/core/logger.py b/openhands/core/logger.py
@@ -376,6 +376,10 @@ def log_uncaught_exceptions(
 
 if LOG_JSON:
     openhands_logger.addHandler(json_log_handler(current_log_level))
+    # Configure concurrent.futures logger to use JSON formatting as well
+    cf_logger = logging.getLogger('concurrent.futures')
+    cf_logger.setLevel(current_log_level)
+    cf_logger.addHandler(json_log_handler(current_log_level))
 else:
     openhands_logger.addHandler(get_console_handler(current_log_level))
 
