openstack/horizon
Code Issues Proposed changes

Make API calls in Instances.DetailView parallel

Browse Source 
In order to increase rendering speed, make nova
and network api calls parallel in instance Detail
View panel.

Closes-bug: #1675788
Change-Id: I3c94292981d6bf11e6e2947704b314842a99676f
This commit is contained in:
Mateusz Kowalski 2017-03-24 15:10:39 +01:00
parent a6cc518d1f
commit 7fdd875703
1 changed files with 43 additions and 33 deletions
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76
openstack_dashboard/dashboards/project/instances/views.py
View File

@ -354,42 +354,52 @@ class DetailView(tabs.TabView):
instance.status_label = (
filters.get_display_label(choices, instance.status))
try:
instance.volumes = api.nova.instance_volumes_list(self.request,
instance_id)
# Sort by device name
instance.volumes.sort(key=lambda vol: vol.device)
except Exception:
msg = _('Unable to retrieve volume list for instance '
'"%(name)s" (%(id)s).') % {'name': instance.name,
'id': instance_id}
exceptions.handle(self.request, msg, ignore=True)
def _task_get_volumes():
try:
instance.volumes = api.nova.instance_volumes_list(self.request,
instance_id)
# Sort by device name
instance.volumes.sort(key=lambda vol: vol.device)
except Exception:
msg = _('Unable to retrieve volume list for instance '
'"%(name)s" (%(id)s).') % {'name': instance.name,
'id': instance_id}
exceptions.handle(self.request, msg, ignore=True)
try:
instance.full_flavor = api.nova.flavor_get(
self.request, instance.flavor["id"])
except Exception:
msg = _('Unable to retrieve flavor information for instance '
'"%(name)s" (%(id)s).') % {'name': instance.name,
'id': instance_id}
exceptions.handle(self.request, msg, ignore=True)
def _task_get_flavor():
try:
instance.full_flavor = api.nova.flavor_get(
self.request, instance.flavor["id"])
except Exception:
msg = _('Unable to retrieve flavor information for instance '
'"%(name)s" (%(id)s).') % {'name': instance.name,
'id': instance_id}
exceptions.handle(self.request, msg, ignore=True)
try:
instance.security_groups = api.neutron.server_security_groups(
self.request, instance_id)
except Exception:
msg = _('Unable to retrieve security groups for instance '
'"%(name)s" (%(id)s).') % {'name': instance.name,
'id': instance_id}
exceptions.handle(self.request, msg, ignore=True)
def _task_get_security_groups():
try:
instance.security_groups = api.neutron.server_security_groups(
self.request, instance_id)
except Exception:
msg = _('Unable to retrieve security groups for instance '
'"%(name)s" (%(id)s).') % {'name': instance.name,
'id': instance_id}
exceptions.handle(self.request, msg, ignore=True)
try:
api.network.servers_update_addresses(self.request, [instance])
except Exception:
msg = _('Unable to retrieve IP addresses from Neutron for '
'instance "%(name)s" (%(id)s).') % {'name': instance.name,
'id': instance_id}
exceptions.handle(self.request, msg, ignore=True)
def _task_update_addresses():
try:
api.network.servers_update_addresses(self.request, [instance])
except Exception:
msg = _('Unable to retrieve IP addresses from Neutron for '
'instance "%(name)s" (%(id)s).') \
% {'name': instance.name, 'id': instance_id}
exceptions.handle(self.request, msg, ignore=True)
with futurist.ThreadPoolExecutor(max_workers=4) as e:
e.submit(fn=_task_get_volumes)
e.submit(fn=_task_get_flavor)
e.submit(fn=_task_get_security_groups)
e.submit(fn=_task_update_addresses)
return instance