*** This bug is a duplicate of bug 1382064 ***
https://bugs.launchpad.net/bugs/1382064
** This bug has been marked a duplicate of bug 1382064
Failure to allocate tunnel id when creating networks concurrently
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https://bugs.launchpad.net/bugs/1410854
Title:
NoNetworkFoundInMaximumAllowedAttempts with multipe API workers
Status in OpenStack Neutron (virtual network service):
In Progress
Bug description:
When neutron configured with, in regular devstack job it Fails to
create several networks in regular tempest run.
iniset /etc/neutron/neutron.conf DEFAULT api_workers 4
http://logs.openstack.org/82/140482/2/check/check-tempest-dsvm-
neutron-
full/95aea86/logs/screen-q-svc.txt.gz?#_2015-01-14_13_56_07_268
2015-01-14 13:56:07.267 2814 WARNING neutron.plugins.ml2.drivers.helpers
[req-f6402b6d-de49-4675-a766-b45a6bc99061 None] Allocate vxlan segment from
pool failed after 10 failed attempts
2015-01-14 13:56:07.268 2814 ERROR neutron.api.v2.resource
[req-f6402b6d-de49-4675-a766-b45a6bc99061 None] create failed
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource Traceback (most
recent call last):
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource File
"/opt/stack/new/neutron/neutron/api/v2/resource.py", line 83, in resource
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource result =
method(request=request, **args)
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource File
"/opt/stack/new/neutron/neutron/api/v2/base.py", line 451, in create
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource obj =
obj_creator(request.context, **kwargs)
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource File
"/opt/stack/new/neutron/neutron/plugins/ml2/plugin.py", line 502, in
create_network
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource tenant_id)
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource File
"/opt/stack/new/neutron/neutron/plugins/ml2/managers.py", line 161, in
create_network_segments
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource segment =
self.allocate_tenant_segment(session)
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource File
"/opt/stack/new/neutron/neutron/plugins/ml2/managers.py", line 190, in
allocate_tenant_segment
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource segment =
driver.obj.allocate_tenant_segment(session)
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource File
"/opt/stack/new/neutron/neutron/plugins/ml2/drivers/type_tunnel.py", line 150,
in allocate_tenant_segment
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource alloc =
self.allocate_partially_specified_segment(session)
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource File
"/opt/stack/new/neutron/neutron/plugins/ml2/drivers/helpers.py", line 144, in
allocate_partially_specified_segment
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource raise
exc.NoNetworkFoundInMaximumAllowedAttempts()
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource
NoNetworkFoundInMaximumAllowedAttempts: Unable to create the network. No
available network found in maximum allowed attempts.
2015-01-14 13:56:07.268 2814 TRACE neutron.api.v2.resource
vxlan_vni': 1008L is successfully allocated on behalf of pid=2813 ,
req-f3866173-7766-46fc-9dea-e5387be7190d.
pid=2814,req-f6402b6d-de49-4675-a766-b45a6bc99061 tries to allocate
the same VNI for 10 times without success.
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