Improve Network delete performance
- pass existing network dict to PRECOMMIT_DELETE ml2 handler;
- skip MTU and segment update handling in case network is
about to be deleted.
Above gives up to 50% net delete speed-up
Conflicts:
neutron/services/segments/db.py
Change-Id: I07c70db027f2ae03ffb5a95072e019e8a5fdc411
(cherry picked from commit 80eddc4039
)
This commit is contained in:
parent
f15fb6831a
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@ -502,7 +502,8 @@ class NeutronDbPluginV2(db_base_plugin_common.DbBasePluginCommon,
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network_db = self._get_network(context, id)
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network = self._make_network_dict(network_db, context=context)
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registry.notify(resources.NETWORK, events.PRECOMMIT_DELETE,
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self, context=context, network_id=id)
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self, context=context, network_id=id,
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network=network)
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# We expire network_db here because precommit deletion
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# might have left the relationship stale, for example,
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# if we deleted a segment.
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@ -1192,7 +1192,8 @@ class Ml2Plugin(db_base_plugin_v2.NeutronDbPluginV2,
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priority=0)
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def _network_delete_precommit_handler(self, rtype, event, trigger,
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context, network_id, **kwargs):
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network = self.get_network(context, network_id)
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network = (kwargs.get('network') or
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self.get_network(context, network_id))
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mech_context = driver_context.NetworkContext(self,
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context,
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network)
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@ -2262,12 +2263,14 @@ class Ml2Plugin(db_base_plugin_v2.NeutronDbPluginV2,
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# TODO(boden); refactor into _handle_segment_change once all
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# event types use payloads
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return self._handle_segment_change(
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rtype, event, trigger, payload.context, payload.latest_state)
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rtype, event, trigger, payload.context, payload.latest_state,
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for_net_delete=payload.metadata.get('for_net_delete'))
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@registry.receives(resources.SEGMENT, (events.PRECOMMIT_CREATE,
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events.PRECOMMIT_DELETE,
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events.AFTER_CREATE))
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def _handle_segment_change(self, rtype, event, trigger, context, segment):
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def _handle_segment_change(self, rtype, event, trigger, context, segment,
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for_net_delete=False):
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if (event == events.PRECOMMIT_CREATE and
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not isinstance(trigger, segments_plugin.Plugin)):
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# TODO(xiaohhui): Now, when create network, ml2 will reserve
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@ -2288,6 +2291,9 @@ class Ml2Plugin(db_base_plugin_v2.NeutronDbPluginV2,
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elif event == events.PRECOMMIT_DELETE:
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self.type_manager.release_network_segment(context, segment)
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if for_net_delete:
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return
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# change in segments could affect resulting network mtu, so let's
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# recalculate it
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network_db = self._get_network(context, network_id)
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@ -201,12 +201,15 @@ class SegmentDbMixin(object):
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# Do some preliminary operations before deleting segment in db
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registry.notify(resources.SEGMENT, events.PRECOMMIT_DELETE,
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self.delete_segment, context=context,
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segment=segment_dict)
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segment=segment_dict,
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for_net_delete=for_net_delete)
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registry.publish(resources.SEGMENT, events.AFTER_DELETE,
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self.delete_segment,
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payload=events.DBEventPayload(
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context, states=(segment_dict,),
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context, metadata={
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FOR_NET_DELETE: for_net_delete},
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states=(segment_dict,),
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resource_id=uuid))
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@ -332,7 +335,7 @@ def _add_segment_host_mapping_for_segment(resource, event, trigger,
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def _delete_segments_for_network(resource, event, trigger,
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context, network_id):
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context, network_id, **kwargs):
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admin_ctx = context.elevated()
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global segments_plugin
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if not segments_plugin:
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@ -419,7 +419,8 @@ class TestSegment(SegmentTestCase):
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events.PRECOMMIT_DELETE,
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mock.ANY,
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context=mock.ANY,
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network_id=mock.ANY)
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network_id=mock.ANY,
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network=mock.ANY)
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class TestSegmentML2(SegmentTestCase):
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