74c671ba87
fip agent gw ports may be left in DB after router removal due to
race condition between l3 agent and server: when server processes
"router delete" - l3 agent is still processing "router add" and creates
fip agent gw port after server already removed the router.
The patch also adds handling of external network delete event
to cleanup fip namespaces left on agents due to same race condition.
Change-Id: Ib2f3aca08946e584156d092c37e1ea5ed5ca81a6
Closes-Bug: #1902998
(cherry picked from commit b97a8eb488)
80 lines
3.0 KiB
Python
80 lines
3.0 KiB
Python
# Copyright (c) 2012 OpenStack Foundation.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from neutron_lib import constants
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# NOTE(boden): This module is common constants for neutron only.
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# Any constants used outside of neutron should go into neutron-lib.
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# Security group protocols that support ports
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SG_PORT_PROTO_NUMS = [
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constants.PROTO_NUM_DCCP,
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constants.PROTO_NUM_SCTP,
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constants.PROTO_NUM_TCP,
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constants.PROTO_NUM_UDP,
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constants.PROTO_NUM_UDPLITE
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]
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SG_PORT_PROTO_NAMES = [
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constants.PROTO_NAME_DCCP,
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constants.PROTO_NAME_SCTP,
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constants.PROTO_NAME_TCP,
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constants.PROTO_NAME_UDP,
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constants.PROTO_NAME_UDPLITE
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]
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# iptables protocols that only support --dport and --sport using -m multiport
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IPTABLES_MULTIPORT_ONLY_PROTOCOLS = [
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constants.PROTO_NAME_UDPLITE
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]
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# Legacy IPv6 ICMP protocol list
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IPV6_ICMP_LEGACY_PROTO_LIST = [constants.PROTO_NAME_ICMP,
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constants.PROTO_NAME_IPV6_ICMP_LEGACY]
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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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# Number of resources for neutron to divide the large RPC
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# call data sets.
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RPC_RES_PROCESSING_STEP = 20
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# IPtables version to support --random-fully option.
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# Do not move this constant to neutron-lib, since it is temporary
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IPTABLES_RANDOM_FULLY_VERSION = '1.6.2'
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# Segmentation ID pool; DB select limit to improve the performace.
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IDPOOL_SELECT_SIZE = 100
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# Ports with the following 'device_owner' values will not prevent
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# network deletion. If delete_network() finds that all ports on a
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# network have these owners, it will explicitly delete each port
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# and allow network deletion to continue. Similarly, if delete_subnet()
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# finds out that all existing IP Allocations are associated with ports
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# with these owners, it will allow subnet deletion to proceed with the
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# IP allocations being cleaned up by cascade.
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AUTO_DELETE_PORT_OWNERS = [constants.DEVICE_OWNER_DHCP,
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constants.DEVICE_OWNER_AGENT_GW]
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