def _update_node(self, cluster, info, data, updated, callback):
"""
updates an individual node, this is the actual work function
@param cluster - cluster this node is on
@param info - info from ganeti
@param data - data from database
@param updated - counter object
@param callback - callback fired when method is complete.
"""
hostname = info['name']
if hostname in data:
id, mtime = data[hostname]
if not mtime or mtime < info['mtime']:
print ' Node (updated) : %s' % hostname
#print ' %s :: %s' % (mtime, datetime.fromtimestamp(info['mtime']))
# only update the whole object if it is new or modified.
parsed = Node.parse_persistent_info(info)
Node.objects.filter(pk=id) \
.update(serialized_info=cPickle.dumps(info), **parsed)
updated += 1
else:
# new node
node = Node(cluster=cluster, hostname=info['name'])
node.info = info
node.save()
id = node.pk
updated += 1
# Updates relationships between a Node and its Primary and Secondary
# VirtualMachines. This always runs even when there are no updates but
# it should execute quickly since it runs against an indexed column
#
# XXX this blocks so it may be worthwhile to spin this off into a
# deferred just to break up this method.
VirtualMachine.objects \
.filter(hostname__in=info['pinst_list']) \
.update(primary_node=id)
VirtualMachine.objects \
.filter(hostname__in=info['sinst_list']) \
.update(secondary_node=id)
callback(id)
