Public bug reported:

Detailed bug description:
Problem discovered on MOS 9.0 ISO #495 RC2

Problem was discovered during execution of NovaServers.resize_server
rally test: AMQP server is unreachable 6 times from 97.

Nova log file atached to this bug.
Nova api log of this issue:

2016-07-07 13:09:44.688 19298 DEBUG keystoneauth.session [-] REQ: curl -g -i -X 
GET http://192.168.0.2:35357/v3/auth/tokens -H "X-Subject-Token: 
{SHA1}b4af682fec7d7d1d9eae361e225206444e9248c2" -H "User-Agent: 
python-keystoneclient" -H "Accept: application/json" -H "X-Auth-Token: 
{SHA1}63adf02cc36a824b4c6f0ee6ba6003f06ea88ae9" _http_log_request 
/usr/lib/python2.7/dist-packages/keystoneauth1/session.py:248
2016-07-07 13:09:48.363 19400 DEBUG nova.metadata.wsgi.server 
[req-17a7f302-f66c-432d-8ebf-ec180b6da5cc - - - - -] (19400) accepted 
('240.0.0.2', 42160) server 
/usr/lib/python2.7/dist-packages/eventlet/wsgi.py:867
2016-07-07 13:09:48.366 19400 INFO nova.metadata.wsgi.server [-] 240.0.0.2 
"OPTIONS / HTTP/1.0" status: 200 len: 234 time: 0.0007420
2016-07-07 13:09:48.811 19311 DEBUG nova.osapi_compute.wsgi.server 
[req-ea429186-3ca0-4e49-bd6b-fd333b1ba765 - - - - -] (19311) accepted 
('240.0.0.2', 45402) server 
/usr/lib/python2.7/dist-packages/eventlet/wsgi.py:867
2016-07-07 13:09:48.813 19311 DEBUG nova.api.openstack.wsgi [-] Calling method 
'<bound method Versions.index of <nova.api.openstack.compute.versions.Versions 
object at 0x7f8517191690>>' _process_stack 
/usr/lib/python2.7/dist-packages/nova/api/openstack/wsgi.py:699
2016-07-07 13:09:48.814 19311 INFO nova.osapi_compute.wsgi.server [-] 240.0.0.2 
"OPTIONS / HTTP/1.0" status: 200 len: 501 time: 0.0018778
2016-07-07 13:09:56.098 19271 DEBUG oslo.messaging._drivers.impl_rabbit [-] 
Received recoverable error from kombu: on_error 
/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/impl_rabbit.py:683
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit 
Traceback (most recent call last):
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   File 
"/usr/lib/python2.7/dist-packages/kombu/connection.py", line 436, in _ensured
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
return fun(*args, **kwargs)
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   File 
"/usr/lib/python2.7/dist-packages/kombu/connection.py", line 508, in __call__
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
return fun(*args, channel=channels[0], **kwargs), channels[0]
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   File 
"/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 
734, in execute_method
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
method()
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   File 
"/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 
1028, in _consume
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
self.connection.drain_events(timeout=poll_timeout)
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   File 
"/usr/lib/python2.7/dist-packages/kombu/connection.py", line 275, in 
drain_events
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
return self.transport.drain_events(self.connection, **kwargs)
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   File 
"/usr/lib/python2.7/dist-packages/kombu/transport/pyamqp.py", line 95, in 
drain_events
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
return connection.drain_events(**kwargs)
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   File 
"/usr/lib/python2.7/dist-packages/amqp/connection.py", line 303, in drain_events
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
chanmap, None, timeout=timeout,
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   File 
"/usr/lib/python2.7/dist-packages/amqp/connection.py", line 366, in 
_wait_multiple
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
channel, method_sig, args, content = read_timeout(timeout)
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   File 
"/usr/lib/python2.7/dist-packages/amqp/connection.py", line 337, in read_timeout
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
return self.method_reader.read_method()
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   File 
"/usr/lib/python2.7/dist-packages/amqp/method_framing.py", line 189, in 
read_method
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
raise m
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit error: 
[Errno 110] Connection timed out
2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit 
2016-07-07 13:09:56.100 19271 ERROR oslo.messaging._drivers.impl_rabbit [-] 
AMQP server on 192.168.0.7:5673 is unreachable: [Errno 110] Connection timed 
out. Trying again in 1 seconds.


Steps to reproduce:
 Start rally test NovaServers.resize_server during the load. 
Expected results:
 Test passed. Server flavor was chenged.
Actual result:
 Test failed. 
Reproducibility:
 Iterations: 97, Failures: 6
Workaround:
 n/a
Impact:
 unknown
Description of the environment:
        * 10 baremetal nodes:
           - CPU: 12 x 2.10 GHz
           - Disks: 2 drives (SSD - 80 GB, HDD - 931.5 GB), 1006.0 GB total
           - Memory: 2 x 16.0 GB, 32.0 GB total
           - NUMA topology: 1 NUMA node
        * Node roles:
          - 3 controllers (1 was is offline because of disk problems)
          - 7 computes
        * Details:
          - OS on controllers: Mitaka on Ubuntu 14.04
          - OS on computes: RHEL 
          - Compute: KVM
          - Neutron with VLAN segmentation

Additional information:
 Diagnostic snapshot download link: 
http://mos-scale-share.mirantis.com/fuel-snapshot-2016-07-11_08-57-28.tar.gz

** Affects: nova
     Importance: Undecided
         Status: New


** Tags: nova resize-server

** Attachment added: "nova-api.log.4.gz"
   
https://bugs.launchpad.net/bugs/1602274/+attachment/4699447/+files/nova-api.log.4.gz

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https://bugs.launchpad.net/bugs/1602274

Title:
  Connection timed out

Status in OpenStack Compute (nova):
  New

Bug description:
  Detailed bug description:
  Problem discovered on MOS 9.0 ISO #495 RC2

  Problem was discovered during execution of NovaServers.resize_server
  rally test: AMQP server is unreachable 6 times from 97.

  Nova log file atached to this bug.
  Nova api log of this issue:

  2016-07-07 13:09:44.688 19298 DEBUG keystoneauth.session [-] REQ: curl -g -i 
-X GET http://192.168.0.2:35357/v3/auth/tokens -H "X-Subject-Token: 
{SHA1}b4af682fec7d7d1d9eae361e225206444e9248c2" -H "User-Agent: 
python-keystoneclient" -H "Accept: application/json" -H "X-Auth-Token: 
{SHA1}63adf02cc36a824b4c6f0ee6ba6003f06ea88ae9" _http_log_request 
/usr/lib/python2.7/dist-packages/keystoneauth1/session.py:248
  2016-07-07 13:09:48.363 19400 DEBUG nova.metadata.wsgi.server 
[req-17a7f302-f66c-432d-8ebf-ec180b6da5cc - - - - -] (19400) accepted 
('240.0.0.2', 42160) server 
/usr/lib/python2.7/dist-packages/eventlet/wsgi.py:867
  2016-07-07 13:09:48.366 19400 INFO nova.metadata.wsgi.server [-] 240.0.0.2 
"OPTIONS / HTTP/1.0" status: 200 len: 234 time: 0.0007420
  2016-07-07 13:09:48.811 19311 DEBUG nova.osapi_compute.wsgi.server 
[req-ea429186-3ca0-4e49-bd6b-fd333b1ba765 - - - - -] (19311) accepted 
('240.0.0.2', 45402) server 
/usr/lib/python2.7/dist-packages/eventlet/wsgi.py:867
  2016-07-07 13:09:48.813 19311 DEBUG nova.api.openstack.wsgi [-] Calling 
method '<bound method Versions.index of 
<nova.api.openstack.compute.versions.Versions object at 0x7f8517191690>>' 
_process_stack /usr/lib/python2.7/dist-packages/nova/api/openstack/wsgi.py:699
  2016-07-07 13:09:48.814 19311 INFO nova.osapi_compute.wsgi.server [-] 
240.0.0.2 "OPTIONS / HTTP/1.0" status: 200 len: 501 time: 0.0018778
  2016-07-07 13:09:56.098 19271 DEBUG oslo.messaging._drivers.impl_rabbit [-] 
Received recoverable error from kombu: on_error 
/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/impl_rabbit.py:683
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit 
Traceback (most recent call last):
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   
File "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 436, in 
_ensured
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
return fun(*args, **kwargs)
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   
File "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 508, in 
__call__
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
return fun(*args, channel=channels[0], **kwargs), channels[0]
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   
File "/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", 
line 734, in execute_method
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
method()
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   
File "/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", 
line 1028, in _consume
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
self.connection.drain_events(timeout=poll_timeout)
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   
File "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 275, in 
drain_events
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
return self.transport.drain_events(self.connection, **kwargs)
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   
File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqp.py", line 95, in 
drain_events
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
return connection.drain_events(**kwargs)
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   
File "/usr/lib/python2.7/dist-packages/amqp/connection.py", line 303, in 
drain_events
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
chanmap, None, timeout=timeout,
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   
File "/usr/lib/python2.7/dist-packages/amqp/connection.py", line 366, in 
_wait_multiple
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
channel, method_sig, args, content = read_timeout(timeout)
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   
File "/usr/lib/python2.7/dist-packages/amqp/connection.py", line 337, in 
read_timeout
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
return self.method_reader.read_method()
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit   
File "/usr/lib/python2.7/dist-packages/amqp/method_framing.py", line 189, in 
read_method
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit     
raise m
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit 
error: [Errno 110] Connection timed out
  2016-07-07 13:09:56.098 19271 ERROR oslo.messaging._drivers.impl_rabbit 
  2016-07-07 13:09:56.100 19271 ERROR oslo.messaging._drivers.impl_rabbit [-] 
AMQP server on 192.168.0.7:5673 is unreachable: [Errno 110] Connection timed 
out. Trying again in 1 seconds.

  
  Steps to reproduce:
   Start rally test NovaServers.resize_server during the load. 
  Expected results:
   Test passed. Server flavor was chenged.
  Actual result:
   Test failed. 
  Reproducibility:
   Iterations: 97, Failures: 6
  Workaround:
   n/a
  Impact:
   unknown
  Description of the environment:
        * 10 baremetal nodes:
           - CPU: 12 x 2.10 GHz
           - Disks: 2 drives (SSD - 80 GB, HDD - 931.5 GB), 1006.0 GB total
           - Memory: 2 x 16.0 GB, 32.0 GB total
           - NUMA topology: 1 NUMA node
        * Node roles:
          - 3 controllers (1 was is offline because of disk problems)
          - 7 computes
        * Details:
          - OS on controllers: Mitaka on Ubuntu 14.04
          - OS on computes: RHEL 
          - Compute: KVM
          - Neutron with VLAN segmentation

  Additional information:
   Diagnostic snapshot download link: 
http://mos-scale-share.mirantis.com/fuel-snapshot-2016-07-11_08-57-28.tar.gz

To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1602274/+subscriptions

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