Meetings/Neutron-DVR

Meetings

• Weekly on Wednesday at 1500 UTC
• IRC channel: #openstack-meeting-alt on freenode
• Chair: Brian Haley (haleyb), Swaminathan Vasudevan (Swami)
• Meetings, with their notes and logs, will be found under http://eavesdrop.openstack.org/meetings/neutron_dvr

Agenda

Meeting March 2nd, 2016

Announcements (haleyb)

• Mitaka milestone 3 release will be this week

• We still have two high bugs:
  • Live Migration Bug (Targeted for Mitaka)
  • FloatingIP ping comes through the SNAT namespace
• When adding items below I'd like to try to get feedback on whether they are a MUST FIX, SHOULD FIX, or GOOD TO HAVE

Topics for Discussion

Bugs (Swami)

All DVR bugs should be tagged and listed here: https://bugs.launchpad.net/neutron/+bugs?field.tag=l3-dvr-backlog

Gate Test Failures

• https://bugs.launchpad.net/neutron/+bug/1450604 (Medium) - Fix or stabilize Multi-node Job
• https://review.openstack.org/#/c/284450/ (Merged) - Fixed the Multi-node failures.

Existing Functionality Broken Bugs

• https://bugs.launchpad.net/neutron/+bug/1541406 - IPv6 Prefix Delegation does not work with DVR (SHOULD FIX)
  • https://review.openstack.org/#/c/277657/ (Related Patch) - Needs Review.

• https://bugs.launchpad.net/neutron/+bug/1456073 (High) - Block Migration with FIP breaks with DVR (MUST FIX)
  • https://review.openstack.org/275073 (Nova side change) - Needs review
  • https://review.openstack.org/275420 (Neutron Server side DVR change) - Approved, awaiting merge
  • https://review.openstack.org/#/c/260738/ (Needs review) (L3 Agent side patch) - Reviewed

• • related bug https://bugs.launchpad.net/neutron/+bug/1414559 with fixes: (OVS drops RARP packets)
    • in neutron https://review.openstack.org/#/c/246898/ (Needs review) Notify vif plugged event (related)
    • and nova https://review.openstack.org/#/c/246910/ (Needs review) Notify vif plugged event (related)

• https://bugs.launchpad.net/neutron/+bug/1462154 (High) - DVR pings to floatingip replied with fixed ips (SHOULD FIX)
  • https://review.openstack.org/246855
  • Doesn't seem to be making progress?

• https://bugs.launchpad.net/neutron/+bug/1445255 (Low) - DVR Floatingip to unbound port does not work (Allowed address pair) (SHOULD FIX)
  • https://review.openstack.org/#/c/254439/ (Needs review)

• https://bugs.launchpad.net/neutron/+bug/1447227 (Low) - Connecting two or more distributed routers to a subnet. (No one is working on it) (GOOD TO HAVE)

New Features Bugs

• https://bugs.launchpad.net/neutron/+bug/1504039 - LinuxBridge DVR (Spec & code)

Refactor or Cleanup Bugs

• https://bugs.launchpad.net/neutron/+bug/1531065 - (Low) duplicate fetch subnet_id in get_subnet_for_dvr (GOOD TO HAVE)
  • https://review.openstack.org/#/c/263563/ - (Needs review)
• https://bugs.launchpad.net/neutron/+bug/1538369 - Refactor request (Not a real bug)

WishList Bugs

• https://bugs.launchpad.net/neutron/+bug/1518819 - Ability to specify a gateway when adding a subnet without cidr (GOOD TO HAVE)
• https://bugs.launchpad.net/neutron/+bug/1529439 - unify validate_agent_router_combination exceptions for dvr agent_mode (GOOD TO HAVE)
• https://bugs.launchpad.net/neutron/+bug/1450067 (Low) - ML2 and L3 plugin exposes dvr extension even if ovs is unused. (No owners yet) (GOOD TO HAVE)

WatchList Bugs

• https://bugs.launchpad.net/neutron/+bug/1444014 (Incomplete) (StaleDataError) - on Watch
• https://bugs.launchpad.net/neutron/+bug/1521815 (Low)- (DVR functional Job failure) - on Watch state

Bugs Closed Recently

• https://bugs.launchpad.net/neutron/+bug/1533216 (Low) - Item allocator should return same value for key (GOOD TO HAVE)
  • https://review.openstack.org/266379 (Related Patch) - Patch Merged.

Performance/Scalability (obondarev)

• https://blueprints.launchpad.net/neutron/+spec/improve-dvr-l3-agent-binding (SHOULD HAVE)
  • https://review.openstack.org/#/q/status:open+project:openstack/neutron+branch:master+topic:bp/improve-dvr-l3-agent-binding
  • All changes have been merged!

Discuss a plan to address the gate failures (haleyb)

• Current failure rate: https://goo.gl/L1WODG
  • Single node check job failure rate has recovered from last week issues, same as non-dvr job with some delta as of today
  • Multi-node non-DVR job failures have reduced after skipping the volume-migration (migrate volume error)
    • Bugs in Nova:
      • https://bugs.launchpad.net/nova/+bug/1524898 (Volume based live migration aborted unexpectedly)
      • https://bugs.launchpad.net/nova/+bug/1535232 (live-migration ci failure on nfs shared storage)
• Debug the gate in the current failure state (Identify owners who can own this)
• https://bugs.launchpad.net/neutron/+bug/1515360 - Tempest "SSHTimeout" failures (GOOD TO HAVE) - This patch seem to have some timing issues and so we are seeing more failures for the pings.
  • https://review.openstack.org/#/c/247748/ (add debugging code to l3-agent) - Still pings are not consistent with the tempest.
• https://drive.google.com/file/d/0B4kh-7VVPWlPMkdrQWFFdjNsSnM/view?usp=sharing - Logstash failures captured. Any logstash errors can be captured here

Meeting commands

/join #openstack-meeting-alt
#startmeeting neutron_dvr
#topic Announcements
#undo topic
#link https://wiki.openstack.org/wiki/Meetings/Neutron-DVR
#action haleyb will get something specific done this week
#chair Swami
...
#endmeeting