Merge branch 'cherry-pick-640cc7a1' into 'release-22.1'

release-22.1:Backport!5084

See merge request noc/noc!6407

inv/models/discoveryid.py

@@ -49,11 +49,12 @@ class DiscoveryID(Document):
         "collection": "noc.inv.discovery_id",
         "strict": False,
         "auto_create_index": False,
-        "indexes": ["object", "hostname", "udld_id", "macs"],
+        "indexes": ["object", "hostname", "hostname_id", "udld_id", "macs"],
     }
     object = ForeignKeyField(ManagedObject)
     chassis_mac = ListField(EmbeddedDocumentField(MACRange))
     hostname = StringField()
+    hostname_id = StringField()
     router_id = StringField()
     udld_id = StringField()  # UDLD local identifier
     #
@@ -115,6 +116,7 @@ class DiscoveryID(Document):
             old_macs = set(m.first_mac for m in o.chassis_mac)
             o.chassis_mac = ranges
             o.hostname = hostname
+            o.hostname_id = hostname.lower()
             o.router_id = router_id
             old_macs -= set(m.first_mac for m in o.chassis_mac)
             if old_macs:
@@ -124,7 +126,12 @@ class DiscoveryID(Document):
             o.save()
         else:
             cls(
-                object=object, chassis_mac=ranges, hostname=hostname, router_id=router_id, macs=macs
+                object=object,
+                chassis_mac=ranges,
+                hostname=hostname,
+                hostname_id=hostname.lower(),
+                router_id=router_id,
+                macs=macs,
             ).save()
 
     @classmethod

services/discovery/jobs/base.py

@@ -1001,8 +1001,9 @@ class TopologyDiscoveryCheck(DiscoveryCheck):
         """
         Resolve neighbor by hostname
         """
+        hostname = hostname.lower()
         if hostname not in self.neighbor_hostname_cache:
-            hosts = DiscoveryID.objects.filter(hostname=hostname)[:2]
+            hosts = DiscoveryID.objects.filter(hostname_id=hostname)[:2]
             n = None
             if len(hosts) == 1:
                 n = hosts[0].object
@@ -1011,7 +1012,7 @@ class TopologyDiscoveryCheck(DiscoveryCheck):
                 # Try to resolve anyway
                 m = list(
                     DiscoveryID.objects.filter(
-                        hostname__istartswith=hostname + "." if "." not in hostname else hostname
+                        hostname_id__istartswith=hostname + "." if "." not in hostname else hostname
                     )
                 )
                 if len(m) == 1: