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Reviewed:  https://review.openstack.org/447415
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=3d58ce44d41fd38af862007ad79dd4dae826b9c0
Submitter: Jenkins
Branch:    master

commit 3d58ce44d41fd38af862007ad79dd4dae826b9c0
Author: Huan Xie <huan.xie@xxxxxxxxxx>
Date:   Mon Mar 20 01:34:12 2017 -0700

    Deal with port commonly when hypervisor is XenServer
    
    When neutron is deployed with hypervisor is XenServer, current
    implementation will grab port's iface-id via xapi, but this isn't
    the proper way:
    Port's iface-id is already set when creating VM or hot plugging
    VIFs in nova project, so there is no need to grab it via xapi
    
    Change-Id: Ie07527cc89ac81ff1e3519db66925cee482f77a4
    Closes-Bug: #1649747


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1649747

Title:
  XenAPI: With ovs polling mode, Neutron gets the error of
  oslo_rootwrap.wrapper.FilterMatchNotExecutable

Status in neutron:
  Fix Released

Bug description:
  When enabled polling mode for XenAPI, the neutron q-domua always get
  the error of oslo_rootwrap.wrapper.FilterMatchNotExecutable. See the
  following log.

  With ovs polling mode, ovs will report data to neutron once any ovs DB
  update. So there is chance to report partialy data for vifs before ovs
  DB synced-up with xapi. so it will invoke xe command to get iface-id.
  But xe is not in the allowed command list. So it will raise errors.

  https://github.com/openstack/neutron/blob/master/neutron/agent/common/ovs_lib.py#L418

  2016-12-12 09:59:31.449 32172 DEBUG neutron.agent.linux.async_process [-] Output received from [ovsdb-client monitor tcp:192.168.33.2:6640 Interface name,ofport,external_ids --format=json]: {"data":[["2d32873e-2b35-47ba-90b3-81c953fd8193","old",null,["set",[]],null],["","new","vif16.0",1,["map",[["attached-mac","fa:16:3e:c9:46:63"],["xs-network-uuid","75ba394a-ed6a-549e-d608-9ad43461c462"],["xs-vif-uuid","f72ce34c-f1cb-f54c-3132-bfd97fabef37"],["xs-vm-uuid","c91f272e-a710-2c00-818d-df05953f34d9"]]]]],"headings":["row","action","name","ofport","external_ids"]} _read_stdout /opt/stack/new/neutron/neutron/agent/linux/async_process.py:238
  2016-12-12 09:59:31.469 32172 DEBUG neutron.agent.linux.async_process [-] Output received from [ovsdb-client monitor tcp:192.168.33.2:6640 Interface name,ofport,external_ids --format=json]: {"data":[["2d32873e-2b35-47ba-90b3-81c953fd8193","old",null,null,["map",[["attached-mac","fa:16:3e:c9:46:63"],["xs-network-uuid","75ba394a-ed6a-549e-d608-9ad43461c462"],["xs-vif-uuid","f72ce34c-f1cb-f54c-3132-bfd97fabef37"],["xs-vm-uuid","c91f272e-a710-2c00-818d-df05953f34d9"]]]],["","new","vif16.0",1,["map",[["attached-mac","fa:16:3e:c9:46:63"],["iface-id","81329e07-4df2-4239-a2c6-1cba950741a4"],["iface-status","active"],["vm-id","c91f272e-a710-2c00-818d-df05953f34d9"],["xs-network-uuid","75ba394a-ed6a-549e-d608-9ad43461c462"],["xs-vif-uuid","f72ce34c-f1cb-f54c-3132-bfd97fabef37"],["xs-vm-uuid","c91f272e-a710-2c00-818d-df05953f34d9"]]]]],"headings":["row","action","name","ofport","external_ids"]} _read_stdout /opt/stack/new/neutron/neutron/agent/linux/async_process.py:238
  2016-12-12 09:59:31.469 32172 DEBUG neutron.agent.ovsdb.native.vlog [-] [POLLIN] on fd 7 __log_wakeup /usr/local/lib/python2.7/dist-packages/ovs/poller.py:202
  2016-12-12 09:59:31.511 32172 DEBUG neutron.agent.ovsdb.native.vlog [-] [POLLIN] on fd 7 __log_wakeup /usr/local/lib/python2.7/dist-packages/ovs/poller.py:202
  2016-12-12 09:59:31.711 32172 DEBUG neutron.agent.ovsdb.native.vlog [-] [POLLIN] on fd 7 __log_wakeup /usr/local/lib/python2.7/dist-packages/ovs/poller.py:202
  2016-12-12 09:59:32.346 32172 DEBUG neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-ba252219-a9c6-4354-9981-3cfeff7ca54f - -] Agent rpc_loop - iteration:251 started rpc_loop /opt/stack/new/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py:1943
  2016-12-12 09:59:32.351 32172 DEBUG neutron.plugins.ml2.drivers.openvswitch.agent.openflow.native.ofswitch [req-ba252219-a9c6-4354-9981-3cfeff7ca54f - -] ofctl request version=0x4,msg_type=0x12,msg_len=0x38,xid=0x9a58c035,OFPFlowStatsRequest(cookie=0,cookie_mask=0,flags=0,match=OFPMatch(oxm_fields={}),out_group=4294967295,out_port=4294967295,table_id=23,type=1) result [OFPFlowStatsReply(body=[OFPFlowStats(byte_count=0,cookie=9912536195431297602L,duration_nsec=712000000,duration_sec=504,flags=0,hard_timeout=0,idle_timeout=0,instructions=[],length=56,match=OFPMatch(oxm_fields={}),packet_count=0,priority=0,table_id=23)],flags=0,type=1)] _send_msg /opt/stack/new/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/openflow/native/ofswitch.py:93
  2016-12-12 09:59:32.353 32172 DEBUG neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-ba252219-a9c6-4354-9981-3cfeff7ca54f - -] Agent rpc_loop - iteration:251 - starting polling. Elapsed:0.007 rpc_loop /opt/stack/new/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py:1994
  2016-12-12 09:59:32.354 32172 DEBUG neutron.agent.linux.utils [req-ba252219-a9c6-4354-9981-3cfeff7ca54f - -] Running command: ['/usr/local/bin/neutron-rootwrap-xen-dom0', '/etc/neutron/rootwrap.conf', 'xe', 'vif-param-get', 'param-name=other-config', 'param-key=nicira-iface-id', 'uuid=f72ce34c-f1cb-f54c-3132-bfd97fabef37'] create_process /opt/stack/new/neutron/neutron/agent/linux/utils.py:92
  2016-12-12 09:59:33.564 32172 ERROR neutron.agent.linux.utils [req-ba252219-a9c6-4354-9981-3cfeff7ca54f - -] Exit code: 1; Stdin: ; Stdout: ; Stderr: Traceback (most recent call last):
    File "/usr/local/bin/neutron-rootwrap-xen-dom0", line 6, in <module>
      exec(compile(open(__file__).read(), __file__, 'exec'))
    File "/opt/stack/new/neutron/bin/neutron-rootwrap-xen-dom0", line 151, in <module>
      main()
    File "/opt/stack/new/neutron/bin/neutron-rootwrap-xen-dom0", line 138, in main
      filter_command(exec_name, config['filters_path'], user_args, config['exec_dirs'])
    File "/opt/stack/new/neutron/bin/neutron-rootwrap-xen-dom0", line 106, in filter_command
      filters, user_args, exec_dirs=exec_dirs)
    File "/usr/local/lib/python2.7/dist-packages/oslo_rootwrap/wrapper.py", line 176, in match_filter
      raise FilterMatchNotExecutable(match=first_not_executable_filter)
  oslo_rootwrap.wrapper.FilterMatchNotExecutable

  2016-12-12 09:59:33.567 32172 ERROR neutron.agent.common.ovs_lib [req-ba252219-a9c6-4354-9981-3cfeff7ca54f - -] Unable to execute ['xe', 'vif-param-get', 'param-name=other-config', 'param-key=nicira-iface-id', u'uuid=f72ce34c-f1cb-f54c-3132-bfd97fabef37']. Exception: Exit code: 1; Stdin: ; Stdout: ; Stderr: Traceback (most recent call last):
    File "/usr/local/bin/neutron-rootwrap-xen-dom0", line 6, in <module>
      exec(compile(open(__file__).read(), __file__, 'exec'))
    File "/opt/stack/new/neutron/bin/neutron-rootwrap-xen-dom0", line 151, in <module>
      main()
    File "/opt/stack/new/neutron/bin/neutron-rootwrap-xen-dom0", line 138, in main
      filter_command(exec_name, config['filters_path'], user_args, config['exec_dirs'])
    File "/opt/stack/new/neutron/bin/neutron-rootwrap-xen-dom0", line 106, in filter_command
      filters, user_args, exec_dirs=exec_dirs)
    File "/usr/local/lib/python2.7/dist-packages/oslo_rootwrap/wrapper.py", line 176, in match_filter
      raise FilterMatchNotExecutable(match=first_not_executable_filter)
  oslo_rootwrap.wrapper.FilterMatchNotExecutable

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