Set version check as warning (#3654)

nni/tools/trial_tool/trial_keeper.py

@@ -151,14 +151,13 @@ def check_version(args):
             nni_log(LogType.Info, 'nni_manager_version is {0}'.format(nni_manager_version))
             log_entry = {}
             if trial_keeper_version != nni_manager_version:
-                nni_log(LogType.Error, 'Version does not match!')
+                nni_log(LogType.Warning, 'Version does not match!')
                 error_message = 'NNIManager version is {0}, TrialKeeper version is {1}, NNI version does not match!'.format(
                     nni_manager_version, trial_keeper_version)
                 log_entry['tag'] = 'VCFail'
                 log_entry['msg'] = error_message
                 rest_post(gen_send_version_url(args.nnimanager_ip, args.nnimanager_port), json.dumps(log_entry), 10,
                           False)
-                os._exit(1)
             else:
                 nni_log(LogType.Info, 'Version match!')
                 log_entry['tag'] = 'VCSuccess'

nni/tools/trial_tool/trial_runner.py

@@ -119,7 +119,7 @@ def check_version(args):
             nni_log(LogType.Info, '{0}: nni_manager_version is {1}'.format(args.node_id, nni_manager_version))
             log_entry = {}
             if trial_runner_version != nni_manager_version:
-                nni_log(LogType.Error, '{0}: Version does not match!'.format(args.node_id))
+                nni_log(LogType.Warning, '{0}: Version does not match!'.format(args.node_id))
                 error_message = '{0}: NNIManager version is {1}, Trial runner version is {2}, NNI version does not match!'.format(
                     args.node_id, nni_manager_version, trial_runner_version)
                 log_entry['tag'] = 'VCFail'
@@ -127,7 +127,6 @@ def check_version(args):
                 command_channel.send(CommandType.VersionCheck, log_entry)
                 while not command_channel.sent():
                     time.sleep(1)
-                os._exit(1)
             else:
                 nni_log(LogType.Info, '{0}: Version match!'.format(args.node_id))
                 log_entry['tag'] = 'VCSuccess'