Divide-and-conquer security group beasts
In one specific compute node, the security group rules can be enormous quantity. This patch adds a step-by-step processing method to deal with the large number of the security group rules. And also changes or adds some LOG. Related-Bug: #1813703 Related-Bug: #1813704 Related-Bug: #1813707 Conflicts: neutron/common/constants.py Conflicts: neutron/agent/securitygroups_rpc.py neutron/common/constants.py neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py Change-Id: I57bf27ec75cf848271c5a28b22beee12b8bd5faa (cherry picked from commit6ac420df7e
) (cherry picked from commitf5d110e15f
)
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@ -439,10 +439,14 @@ class OVSBridge(BaseOVS):
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else:
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flow_strs = [_build_flow_expr_str(kw, action, strict)
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for kw in kwargs_list]
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LOG.debug("Processing %d OpenFlow rules.", len(flow_strs))
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if use_bundle:
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extra_param.append('--bundle')
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self.run_ofctl('%s-flows' % action, extra_param + ['-'],
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'\n'.join(flow_strs))
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step = common_constants.AGENT_RES_PROCESSING_STEP
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for i in range(0, len(flow_strs), step):
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self.run_ofctl('%s-flows' % action, extra_param + ['-'],
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'\n'.join(flow_strs[i:i + step]))
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def add_flow(self, **kwargs):
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self.do_action_flows('add', [kwargs])
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@ -23,6 +23,7 @@ import oslo_messaging
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from neutron.agent import firewall
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from neutron.api.rpc.handlers import securitygroups_rpc
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from neutron.common import constants as common_constants
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from neutron.conf.agent import securitygroups_rpc as sc_cfg
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@ -132,12 +133,17 @@ class SecurityGroupAgentRpc(object):
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self._apply_port_filter(device_ids)
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def _apply_port_filter(self, device_ids, update_filter=False):
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step = common_constants.AGENT_RES_PROCESSING_STEP
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if self.use_enhanced_rpc:
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devices_info = self.plugin_rpc.security_group_info_for_devices(
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self.context, list(device_ids))
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devices = devices_info['devices']
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security_groups = devices_info['security_groups']
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security_group_member_ips = devices_info['sg_member_ips']
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devices = {}
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security_groups = {}
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security_group_member_ips = {}
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for i in range(0, len(device_ids), step):
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devices_info = self.plugin_rpc.security_group_info_for_devices(
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self.context, list(device_ids)[i:i + step])
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devices.update(devices_info['devices'])
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security_groups.update(devices_info['security_groups'])
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security_group_member_ips.update(devices_info['sg_member_ips'])
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else:
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devices = self.plugin_rpc.security_group_rules_for_devices(
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self.context, list(device_ids))
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@ -229,3 +229,15 @@ VALUES_TYPE_RANGE = "range"
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# Units base
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SI_BASE = 1000
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IEC_BASE = 1024
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# Number of resources for neutron agent side functions to deal
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# with large sets.
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# Setting this value does not count on special conditions, it is just a human
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# countable or scalable number. [1] gives us the method to test the scale
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# issue. And we have tested the value of 1000, 500, 200, 100. But for 100,
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# ovs-agent will have a lower timeout probability. And according to the
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# testing result, step size 100 can indeed cost about 10% much more time
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# than 500/1000. But such extra time looks inevitably needed to be sacrificed
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# for the restart success rate.
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# [1] http://paste.openstack.org/show/745685/
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AGENT_RES_PROCESSING_STEP = 100
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@ -1674,8 +1674,8 @@ class OVSNeutronAgent(l2population_rpc.L2populationRpcCallBackTunnelMixin,
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port_info.get('updated', set()))
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need_binding_devices = []
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skipped_devices = set()
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start = time.time()
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if devices_added_updated:
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start = time.time()
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(skipped_devices, need_binding_devices,
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failed_devices['added']) = (
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self.treat_devices_added_or_updated(
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@ -1700,6 +1700,10 @@ class OVSNeutronAgent(l2population_rpc.L2populationRpcCallBackTunnelMixin,
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self._add_port_tag_info(need_binding_devices)
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self.sg_agent.setup_port_filters(added_ports,
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port_info.get('updated', set()))
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LOG.info("process_network_ports - iteration:%(iter_num)d - "
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"agent port security group processed in %(elapsed).3f",
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{'iter_num': self.iter_num,
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'elapsed': time.time() - start})
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failed_devices['added'] |= self._bind_devices(need_binding_devices)
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if 'removed' in port_info and port_info['removed']:
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@ -1001,7 +1001,7 @@ class SecurityGroupAgentEnhancedRpcTestCase(
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mock.call.defer_apply(),
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mock.call.remove_port_filter(
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self.fake_device),
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])
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], any_order=True)
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def test_security_groups_rule_updated_enhanced_rpc(self):
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sg_list = ['fake_sgid1', 'fake_sgid3']
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@ -1058,7 +1058,7 @@ class SecurityGroupAgentEnhancedRpcTestCase(
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mock.call.update_port_filter(self.fake_device),
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mock.call.process_trusted_ports([])]
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self.firewall.assert_has_calls(calls)
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self.firewall.assert_has_calls(calls, any_order=True)
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def test_refresh_firewall_devices_enhanced_rpc(self):
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self.agent.prepare_devices_filter(['fake_device'])
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@ -1081,7 +1081,7 @@ class SecurityGroupAgentEnhancedRpcTestCase(
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mock.call.update_port_filter(self.fake_device),
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mock.call.process_trusted_ports([]),
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]
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self.firewall.assert_has_calls(calls)
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self.firewall.assert_has_calls(calls, any_order=True)
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def test_refresh_firewall_none_enhanced_rpc(self):
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self.agent.refresh_firewall([])
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