Public bug reported:
Env:
XenServer as hypervisor
Neutron ML2 use ovs agent
When using XenServer as hypervisor, the ovs agent running in compute node
cannot set
[agent]
minimize_polling = True
See related logs:
on/api/rpc/callbacks/resource_manager.py:74
2016-12-07 02:28:55.856 INFO
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
[req-dfcefef1-efbd-4896-af21-70f6fae0c0b8 None None] Agent initialized
successfully, now running...
2016-12-07 02:28:55.857 DEBUG neutron.agent.linux.async_process
[req-dfcefef1-efbd-4896-af21-70f6fae0c0b8 None None] Launching async process
[ovsdb-client monitor Interface name,ofport,external_ids --format=json]. from
(pid=6224) start /opt/stack/neutron/neutron/agent/linux/async_process.py:110
2016-12-07 02:28:55.857 DEBUG neutron.agent.linux.utils
[req-dfcefef1-efbd-4896-af21-70f6fae0c0b8 None None] Running command:
['/usr/local/bin/neutron-rootwrap-xen-dom0', '/etc/neutron/rootwrap.conf',
'ovsdb-client', 'monitor', 'Interface', 'name,ofport,external_ids',
'--format=json'] from (pid=6224) create_process
/opt/stack/neutron/neutron/agent/linux/utils.py:92
2016-12-07 02:28:55.879 DEBUG neutron.agent.linux.utils
[req-dfcefef1-efbd-4896-af21-70f6fae0c0b8 None None] Running command: ['ps',
'--ppid', '6253', '-o', 'pid='] from (pid=6224) create_process
/opt/stack/neutron/neutron/agent/linux/utils.py:92
2016-12-07 02:29:00.863 DEBUG neutron.agent.linux.utils
[req-dfcefef1-efbd-4896-af21-70f6fae0c0b8 None None] Running command: ['ps',
'--ppid', '6253', '-o', 'pid='] from (pid=6224) create_process
/opt/stack/neutron/neutron/agent/linux/utils.py:92
2016-12-07 02:29:00.976 ERROR ryu.lib.hub
[req-dfcefef1-efbd-4896-af21-70f6fae0c0b8 None None] hub: uncaught exception:
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", line 54, in
_launch
return func(*args, **kwargs)
File
"/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/openflow/native/ovs_ryuapp.py",
line 42, in agent_main_wrapper
ovs_agent.main(bridge_classes)
File
"/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py",
line 2154, in main
agent.daemon_loop()
File "/usr/local/lib/python2.7/dist-packages/osprofiler/profiler.py", line
154, in wrapper
return f(*args, **kwargs)
File
"/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py",
line 2073, in daemon_loop
self.ovsdb_monitor_respawn_interval) as pm:
File "/usr/lib/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/opt/stack/neutron/neutron/agent/linux/polling.py", line 35, in
get_polling_manager
pm.start()
File "/opt/stack/neutron/neutron/agent/linux/polling.py", line 57, in start
self._monitor.start(block=True)
File "/opt/stack/neutron/neutron/agent/linux/ovsdb_monitor.py", line 117, in
start
while not self.is_active():
File "/opt/stack/neutron/neutron/agent/linux/async_process.py", line 101, in
is_active
self.pid, self.cmd_without_namespace)
File "/opt/stack/neutron/neutron/agent/linux/async_process.py", line 160, in
pid
run_as_root=self.run_as_root)
File "/opt/stack/neutron/neutron/agent/linux/utils.py", line 246, in
get_root_helper_child_pid
pid = find_child_pids(pid)[0]
File "/opt/stack/neutron/neutron/agent/linux/utils.py", line 179, in
find_child_pids
log_fail_as_error=False)
File "/opt/stack/neutron/neutron/agent/linux/utils.py", line 127, in execute
_stdout, _stderr = obj.communicate(_process_input)
File "/usr/lib/python2.7/subprocess.py", line 799, in communicate
return self._communicate(input)
File "/usr/lib/python2.7/subprocess.py", line 1403, in _communicate
stdout, stderr = self._communicate_with_select(input)
File "/usr/lib/python2.7/subprocess.py", line 1504, in
_communicate_with_select
rlist, wlist, xlist = select.select(read_set, write_set, [])
File "/usr/local/lib/python2.7/dist-packages/eventlet/green/select.py", line
86, in select
return hub.switch()
File "/usr/local/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line 294,
in switch
return self.greenlet.switch()
Timeout: 5 seconds
** Affects: neutron
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1647914
Title:
Cannot use minimized_polling when hypervisor is XenServer
Status in neutron:
New
Bug description:
Env:
XenServer as hypervisor
Neutron ML2 use ovs agent
When using XenServer as hypervisor, the ovs agent running in compute node
cannot set
[agent]
minimize_polling = True
See related logs:
on/api/rpc/callbacks/resource_manager.py:74
2016-12-07 02:28:55.856 INFO
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
[req-dfcefef1-efbd-4896-af21-70f6fae0c0b8 None None] Agent initialized
successfully, now running...
2016-12-07 02:28:55.857 DEBUG neutron.agent.linux.async_process
[req-dfcefef1-efbd-4896-af21-70f6fae0c0b8 None None] Launching async process
[ovsdb-client monitor Interface name,ofport,external_ids --format=json]. from
(pid=6224) start /opt/stack/neutron/neutron/agent/linux/async_process.py:110
2016-12-07 02:28:55.857 DEBUG neutron.agent.linux.utils
[req-dfcefef1-efbd-4896-af21-70f6fae0c0b8 None None] Running command:
['/usr/local/bin/neutron-rootwrap-xen-dom0', '/etc/neutron/rootwrap.conf',
'ovsdb-client', 'monitor', 'Interface', 'name,ofport,external_ids',
'--format=json'] from (pid=6224) create_process
/opt/stack/neutron/neutron/agent/linux/utils.py:92
2016-12-07 02:28:55.879 DEBUG neutron.agent.linux.utils
[req-dfcefef1-efbd-4896-af21-70f6fae0c0b8 None None] Running command: ['ps',
'--ppid', '6253', '-o', 'pid='] from (pid=6224) create_process
/opt/stack/neutron/neutron/agent/linux/utils.py:92
2016-12-07 02:29:00.863 DEBUG neutron.agent.linux.utils
[req-dfcefef1-efbd-4896-af21-70f6fae0c0b8 None None] Running command: ['ps',
'--ppid', '6253', '-o', 'pid='] from (pid=6224) create_process
/opt/stack/neutron/neutron/agent/linux/utils.py:92
2016-12-07 02:29:00.976 ERROR ryu.lib.hub
[req-dfcefef1-efbd-4896-af21-70f6fae0c0b8 None None] hub: uncaught exception:
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", line 54, in
_launch
return func(*args, **kwargs)
File
"/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/openflow/native/ovs_ryuapp.py",
line 42, in agent_main_wrapper
ovs_agent.main(bridge_classes)
File
"/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py",
line 2154, in main
agent.daemon_loop()
File "/usr/local/lib/python2.7/dist-packages/osprofiler/profiler.py", line
154, in wrapper
return f(*args, **kwargs)
File
"/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py",
line 2073, in daemon_loop
self.ovsdb_monitor_respawn_interval) as pm:
File "/usr/lib/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/opt/stack/neutron/neutron/agent/linux/polling.py", line 35, in
get_polling_manager
pm.start()
File "/opt/stack/neutron/neutron/agent/linux/polling.py", line 57, in start
self._monitor.start(block=True)
File "/opt/stack/neutron/neutron/agent/linux/ovsdb_monitor.py", line 117,
in start
while not self.is_active():
File "/opt/stack/neutron/neutron/agent/linux/async_process.py", line 101,
in is_active
self.pid, self.cmd_without_namespace)
File "/opt/stack/neutron/neutron/agent/linux/async_process.py", line 160,
in pid
run_as_root=self.run_as_root)
File "/opt/stack/neutron/neutron/agent/linux/utils.py", line 246, in
get_root_helper_child_pid
pid = find_child_pids(pid)[0]
File "/opt/stack/neutron/neutron/agent/linux/utils.py", line 179, in
find_child_pids
log_fail_as_error=False)
File "/opt/stack/neutron/neutron/agent/linux/utils.py", line 127, in execute
_stdout, _stderr = obj.communicate(_process_input)
File "/usr/lib/python2.7/subprocess.py", line 799, in communicate
return self._communicate(input)
File "/usr/lib/python2.7/subprocess.py", line 1403, in _communicate
stdout, stderr = self._communicate_with_select(input)
File "/usr/lib/python2.7/subprocess.py", line 1504, in
_communicate_with_select
rlist, wlist, xlist = select.select(read_set, write_set, [])
File "/usr/local/lib/python2.7/dist-packages/eventlet/green/select.py",
line 86, in select
return hub.switch()
File "/usr/local/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line
294, in switch
return self.greenlet.switch()
Timeout: 5 seconds
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