"Exceeded maximim amount of fixed ips per port" from dhcp-agent

Bug #1514464 reported by Leontiy Istomin
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Mirantis OpenStack
Status tracked in 10.0.x
10.0.x
Confirmed
Medium
Mikhail Chernik
7.0.x
Invalid
Medium
Mikhail Chernik
8.0.x
Won't Fix
Medium
MOS Neutron
9.x
Confirmed
Medium
Mikhail Chernik

Bug Description

We have found the following error during create_and_update_subnets rally scenario:
from rally.log: http://paste.openstack.org/show/478310/
from haproxy: http://paste.openstack.org/show/478311/
there was two requests in the time: http://paste.openstack.org/show/478313/
for the first request with network_id 8a151d70-ca75-4348-bb4a-a9dd74c5d6bc: http://paste.openstack.org/show/478319/

It looks like to https://bugs.launchpad.net/neutron/+bug/1179713

Cluster Configuration:
Baremetal,Ubuntu,IBP,HA,Neutron-vlan,DVR,Ceph-all,Nova-debug,Nova-quotas,7.0-301-mu1
Controllers:3 Computes:178 Copmutes+Ceph:20 LMA:2

api: '1.0'
astute_sha: 6c5b73f93e24cc781c809db9159927655ced5012
auth_required: true
build_id: '301'
build_number: '301'
feature_groups:
- mirantis
fuel-agent_sha: 50e90af6e3d560e9085ff71d2950cfbcca91af67
fuel-library_sha: 5d50055aeca1dd0dc53b43825dc4c8f7780be9dd
fuel-nailgun-agent_sha: d7027952870a35db8dc52f185bb1158cdd3d1ebd
fuel-ostf_sha: 2cd967dccd66cfc3a0abd6af9f31e5b4d150a11c
fuelmain_sha: a65d453215edb0284a2e4761be7a156bb5627677
nailgun_sha: 4162b0c15adb425b37608c787944d1983f543aa8
openstack_version: 2015.1.0-7.0
production: docker
python-fuelclient_sha: 486bde57cda1badb68f915f66c61b544108606f3
release: '7.0'

Diagnostic Snapshot: http://mos-scale-share.mirantis.com/fuel-snapshot-2015-11-09_14-09-50.tar.xz

Revision history for this message
Leontiy Istomin (listomin) wrote :

The same errors during create_and_list_subnets rally scenario
from rally: http://paste.openstack.org/show/478345/
from haproxy: http://paste.openstack.org/show/478346/
from neutron: http://paste.openstack.org/show/478363/

Revision history for this message
Mikhail Chernik (mchernik) wrote :

Added diagnostic snapshot

description: updated
Revision history for this message
Eugene Nikanorov (enikanorov) wrote :

Can you give a link to a rally test code?

Revision history for this message
Oleg Bondarev (obondarev) wrote :

There is a neutron config option "max_fixed_ips_per_port = 5". So when creating more then 5 dhcp enabled subnets in one neutron network we're exceeding this limit for dhcp port. Can you please check if this is the case, does the scenario create > 5 dhcp enabled subnets?

https://review.openstack.org/#/c/160214/ is currently on review in upstream to fix the problem.

Revision history for this message
Mikhail Chernik (mchernik) wrote :
Changed in mos:
status: New → Incomplete
importance: Undecided → High
assignee: MOS Neutron (mos-neutron) → Mikhail Chernik (mchernik)
Revision history for this message
Mikhail Chernik (mchernik) wrote :

Not reproduced after setting max_fixed_ips_per_port = 20 in neutron.conf.

Changed in mos:
status: Incomplete → Invalid
Revision history for this message
Alexander Ignatov (aignatov) wrote :

Also opened this bug in 8.0, decreased priority to Medium since it could be simply improved by increasing appropriate parameter in config

Revision history for this message
Alexander Ignatov (aignatov) wrote :

Works by design, behavior will be changed in mitaka.

Changed in mos:
milestone: 8.0 → 9.0
tags: added: release-notes
tags: added: 8.0 release-notes-done
removed: release-notes
tags: added: wait-for-stable
Changed in mos:
assignee: MOS Neutron (mos-neutron) → Mikhail Chernik (mchernik)
Revision history for this message
Bug Checker Bot (bug-checker) wrote : Autochecker

(This check performed automatically)
Please, make sure that bug description contains the following sections filled in with the appropriate data related to the bug you are describing:

actual result

expected result

steps to reproduce

For more detailed information on the contents of each of the listed sections see https://wiki.openstack.org/wiki/Fuel/How_to_contribute#Here_is_how_you_file_a_bug

tags: added: need-info
Revision history for this message
Dina Belova (dbelova) wrote :

Adding 9.0 milestone back due to the wait-for-stable tag -> fix will arrive as a part of sync with stable/mitaka code.

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