fix cluster life check (#9504)

Author: iddqdex

ydb/tests/olap/lib/allure_utils.py

@@ -3,6 +3,7 @@
 from ydb.tests.olap.lib.ydb_cluster import YdbCluster
 from ydb.tests.olap.lib.results_processor import ResultsProcessor
 from urllib.parse import urlencode
+from datetime import datetime
 
 
 def allure_test_description(
@@ -40,6 +41,7 @@ def _pretty_str(s):
                 f"schema=/{test_info['database']}/{YdbCluster.tables_path}&tenantPage=query"
                 f"&diagnosticsTab=nodes&name=/{test_info['database']}'>link</a>"
             ),
+            'timestamp': datetime.now().strftime('%c'),
         }
     )
     if ResultsProcessor.send_results:

ydb/tests/olap/lib/ydb_cluster.py

@@ -170,7 +170,10 @@ def _check_node(n):
                 start_time = int(ss.get('StartTime', int(time()) * 1000)) / 1000
                 uptime = int(time()) - start_time
                 r = ss.get('Roles', [])
-                role = r[0] if len(r) > 0 else role
+                for role_candidate in ['Storage', 'Tenant']:
+                    if role_candidate in r:
+                        role = role_candidate
+                        break
                 if uptime < 15:
                     error = f'Node {name} too yong: {uptime}'
             except BaseException as ex: