The log_level could be in lower case, transform it to upper first. (#169

)

Signed-off-by: Tao He <[email protected]>

coordinator/gscoordinator/coordinator.py

@@ -165,6 +165,8 @@ def _config_logging(self, log_level):
         Args:
             log_level (str): Log level of stdout handler
         """
+        if log_level:
+            log_level = log_level.upper()
         logger = logging.getLogger("graphscope")
         logger.setLevel(logging.DEBUG)