The fix provided does not seem to fix the error in the bug description.

There are at least 3 places where it should be fixed: 

objects/node.py:

diff --git a/nailgun/nailgun/objects/node.py b/nailgun/nailgun/objects/node.py
index 8833f7c..fd2b76c 100644
--- a/nailgun/nailgun/objects/node.py
+++ b/nailgun/nailgun/objects/node.py
@@ -1435,7 +1435,7 @@ class NodeAttributes(object):
 
     @classmethod
     def distribute_node_cpus(cls, node, attributes=None):
-        numa_nodes = node.meta['numa_topology']['numa_nodes']
+        numa_nodes = node.meta.get('numa_topology',{}).get('numa_nodes', [])
         components = cls.node_cpu_pinning_info(node, attributes)['components']
         dpdk_nics = Node.dpdk_nics(node)
 
@@ -1497,7 +1497,7 @@ class NodeAttributes(object):
         """
 
         hugepages = collections.defaultdict(int)
-        numa_count = len(node.meta['numa_topology']['numa_nodes'])
+        numa_count = len(node.meta.get('numa_topology', {}).get('numa_nodes', []))
 
         hugepages_attributes = cls._safe_get_hugepages(node)
         for name, attrs in six.iteritems(hugepages_attributes):
@@ -1557,7 +1557,7 @@ class NodeAttributes(object):
             return {}
 
         dpdk_memory = hugepages['dpdk']['value']
-        numa_nodes_len = len(node.meta['numa_topology']['numa_nodes'])
+        numa_nodes_len = len(node.meta.get('numa_topology', {}).get('numa_nodes', []))
 
         return {
             'ovs_socket_mem':
@@ -1567,7 +1567,7 @@ class NodeAttributes(object):
     def distribute_hugepages(cls, node, attributes=None):
         hugepages = cls._safe_get_hugepages(
             node, attributes=attributes)
-        topology = node.meta['numa_topology']
+        topology = node.meta.get('numa_topology', {})
 
         # split components to 2 groups:
         # components that should have pages on all numa nodes (such as dpdk)
@@ -1595,7 +1595,7 @@ class NodeAttributes(object):
 
             nova_cpus = set(cpu_distribution['components'].get('nova', []))
             numa_values = collections.defaultdict(int)
-            for numa_node in topology['numa_nodes']:
+            for numa_node in topology.get('numa_nodes', {}):
                 for cpu in numa_node['cpus']:
                     if cpu in nova_cpus:
                         numa_values[numa_node['id']] += 1

and here

diff --git a/nailgun/nailgun/policy/hugepages_distribution.py b/nailgun/nailgun/policy/hugepages_distribution.py
index 264f52e..d6b4412 100644
--- a/nailgun/nailgun/policy/hugepages_distribution.py
+++ b/nailgun/nailgun/policy/hugepages_distribution.py
@@ -132,7 +132,7 @@ def distribute_hugepages(numa_topology, components, numa_sort_func):
     any_comps = [Component(comp) for comp in components['any']]
 
     numa_nodes = []
-    for numa_node in numa_topology['numa_nodes']:
+    for numa_node in numa_topology.get('numa_nodes', {}):
         # converting memory to KiBs
         memory = numa_node['memory'] // 1024
 
@@ -145,8 +145,8 @@ def distribute_hugepages(numa_topology, components, numa_sort_func):
 
     numa_nodes.sort(key=lambda x: numa_sort_func(x.id))
 
-    _allocate_all(numa_nodes, all_comps)
-    _allocate_any(numa_nodes, any_comps)
+#    _allocate_all(numa_nodes, all_comps)
+#    _allocate_any(numa_nodes, any_comps)
 
     return sum([n.report() for n in numa_nodes], [])