--- ovn_octavia_provider/helper.py.orig	2024-03-27 20:17:00.000000000 +0000
+++ ovn_octavia_provider/helper.py	2024-03-31 23:19:13.747183391 +0000
@@ -2046,20 +2046,33 @@ class OvnProviderHelper():
                 user_fault_string=msg,
                 operator_fault_string=msg)
 
+    def _members_in_subnet(self, ovn_lb, subnet_id):
+        members = []
+        for key, value in ovn_lb.external_ids.items():
+            if key.startswith(ovn_const.LB_EXT_IDS_MEMBER_PREFIX):
+                mem_id, mem_ip_port, mem_subnet = key.split('_')[1:]
+                #mem_ip, mem_port = mem_ip_port.split(':')
+                if mem_subnet == subnet_id:
+                    members.append(mem_id)
+        return members
+
     def member_delete(self, member):
         error_deleting_member = False
         try:
-            pool_key, ovn_lb = self._find_ovn_lb_by_pool_id(
-                member[constants.POOL_ID])
+            pool_id = member[constants.POOL_ID]
+            pool_key, ovn_lb = self._find_ovn_lb_by_pool_id(pool_id)
 
             pool_status = self._remove_member(member, ovn_lb, pool_key)
 
-            if ovn_lb.health_check and pool_status == constants.OFFLINE:
-                # NOTE(froyo): if the pool status is OFFLINE there are no more
-                # members. So we should ensure the hm-port is deleted if no
-                # more LB are using it. We need to do this call after the
-                # cleaning of the ip_port_mappings for the ovn LB.
-                self._clean_up_hm_port(member[constants.SUBNET_ID])
+            if ovn_lb.health_check:
+                mem_subnet = member[constants.SUBNET_ID]
+                member_list = self._members_in_subnet(ovn_lb, mem_subnet)
+                if not member_list:
+                    # NOTE(garloff): if we were the last member in the subnet
+                    # we should clean up the hm-port.
+                    # (froyo) We need to do this call after the cleaning of the
+                    # ip_port_mappings for the ovn LB.
+                    self._clean_up_hm_port(member[constants.SUBNET_ID])
         except Exception:
             LOG.exception(ovn_const.EXCEPTION_MSG, "deletion of member")
             error_deleting_member = True