fix(docker): ignore warnings during stop

In docker backend we recently started to get WARN messages upon stopping
node. Because this warn message is catched by db error regex, it causes
docker artifact test to fail and mess Scylla CI. This warn is not
considered as error and should be ignored.

This commit makes all warnings during stop/restart to be ignored (for
docker backend only).

closes: #10633

Author: soyacz

sdcm/cluster_docker.py

@@ -21,6 +21,8 @@
 
 from sdcm import cluster
 from sdcm.remote import LOCALRUNNER
+from sdcm.sct_events.database import DatabaseLogEvent
+from sdcm.sct_events.filters import DbEventsFilter
 from sdcm.utils.docker_utils import get_docker_bridge_gateway, Container, ContainerManager, DockerException
 from sdcm.utils.health_checker import check_nodes_status
 from sdcm.utils.net import get_my_public_ip
@@ -162,8 +164,10 @@ def start_scylla(self, verify_up=True, verify_down=False, timeout=300):
     def stop_scylla_server(self, verify_up=False, verify_down=True, timeout=300, ignore_status=False):
         if verify_up:
             self.wait_db_up(timeout=timeout)
-        self.remoter.sudo('sh -c "{0} || {0}-server"'.format("supervisorctl stop scylla"),
-                          timeout=timeout)
+        # ignoring WARN messages upon stopping - https://github.com/scylladb/scylla-cluster-tests/issues/10633
+        with DbEventsFilter(db_event=DatabaseLogEvent.BACKTRACE, line="WARN "):
+            self.remoter.sudo('sh -c "{0} || {0}-server"'.format("supervisorctl stop scylla"),
+                              timeout=timeout)
         if verify_down:
             self.wait_db_down(timeout=timeout)
 
@@ -192,7 +196,9 @@ def restart_scylla_server(self, verify_up_before=False, verify_up_after=True, ti
         # Need to restart the scylla-housekeeping service manually because of autostart of this service is disabled
         # for the docker backend. See, for example, docker/scylla-sct/ubuntu/Dockerfile
         self.stop_scylla_housekeeping_service(timeout=timeout)
-        self.remoter.sudo('sh -c "{0} || {0}-server"'.format("supervisorctl restart scylla"), timeout=timeout)
+        # ignoring WARN messages upon stopping - https://github.com/scylladb/scylla-cluster-tests/issues/10633
+        with DbEventsFilter(db_event=DatabaseLogEvent.BACKTRACE, line="WARN "):
+            self.remoter.sudo('sh -c "{0} || {0}-server"'.format("supervisorctl restart scylla"), timeout=timeout)
         if verify_up_after:
             self.wait_db_up(timeout=verify_up_timeout)
         self.start_scylla_housekeeping_service(timeout=timeout)