OpenStack Compute (nova)

Fail to start nova-network when set dmz_cidr is empty

Bug #1255029 reported by David Geng
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
OpenStack Compute (nova)
Opinion
Wishlist
David Geng

Bug Description

I can not start the nova-network when set the dmz_cidr is empty in nova.conf:

2013-11-26 04:50:49.916 23022 ERROR nova.openstack.common.threadgroup [-] Unexpected error while running command.
Command: sudo nova-rootwrap /etc/nova/rootwrap.conf iptables-restore -c
Exit code: 2
Stdout: ''
Stderr: "iptables-restore v1.4.7: host/network `None' not found\nError occurred at line: 64\nTry `iptables-restore -h' or 'iptables-restore --help' for more information.\n"
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup Traceback (most recent call last):
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/nova/openstack/common/threadgroup.py", line 117, in wait
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup x.wait()
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/nova/openstack/common/threadgroup.py", line 49, in wait
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup return self.thread.wait()
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/eventlet/greenthread.py", line 168, in wait
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup return self._exit_event.wait()
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/eventlet/event.py", line 116, in wait
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup return hubs.get_hub().switch()
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/eventlet/hubs/hub.py", line 187, in switch
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup return self.greenlet.switch()
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/eventlet/greenthread.py", line 194, in main
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup result = function(*args, **kwargs)
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/nova/openstack/common/service.py", line 448, in run_service
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup service.start()
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/nova/service.py", line 154, in start
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup self.manager.init_host()
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/nova/network/manager.py", line 1713, in init_host
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup self.l3driver.initialize(fixed_range=False, networks=networks)
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/nova/network/l3.py", line 90, in initialize
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup self.initialize_network(network['cidr'])
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/nova/network/l3.py", line 101, in initialize_network
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup linux_net.init_host(cidr)
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/nova/network/linux_net.py", line 700, in init_host
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup iptables_manager.apply()
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/nova/network/linux_net.py", line 421, in apply
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup self._apply()
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/nova/openstack/common/lockutils.py", line 248, in inner
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup return f(*args, **kwargs)
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/nova/network/linux_net.py", line 452, in _apply
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup attempts=5)
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/nova/network/linux_net.py", line 1194, in _execute
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup return utils.execute(*cmd, **kwargs)
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/nova/utils.py", line 174, in execute
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup return processutils.execute(*cmd, **kwargs)
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.6/site-packages/nova/openstack/common/processutils.py", line 178, in execute
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup cmd=' '.join(cmd))
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup ProcessExecutionError: Unexpected error while running command.
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup Command: sudo nova-rootwrap /etc/nova/rootwrap.conf iptables-restore -c
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup Exit code: 2
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup Stdout: ''
2013-11-26 04:50:49.916 23022 TRACE nova.openstack.common.threadgroup Stderr: "iptables-restore v1.4.7: host/network `None' not found\nError occurred at line: 64\nTry `iptables-restore -h' or 'iptables-restore --help' for more information.\n"

See original description
Revision history for this message
David Geng (genggjh) wrote :

The attribute like this in nova.conf:

multi_host=true
network_manager=nova.network.manager.VlanManager
public_interface=eth0.1000
fixed_range=192.168.100.0/24
dmz_cidr=[]

Changed in nova:
assignee: nobody → David Geng (genggjh)
Revision history for this message
David Geng (genggjh) wrote :

I think the root cause is the python load the dmz_cidr=[] is a list like: '['[]']' instead of an empty list:

2013-11-26 04:50:45.703 23022 DEBUG nova.network.linux_net [req-7079d0e8-7dea-44a9-8c7a-26057de8077c None None] dmz_cidr-test-['[]'] init_host /usr/lib/python2.6/site-packages/nova/network/linux_net.py:688

I tried the settings like this : 'dmz_cidr= ' in nova.conf, it still does not work:
2013-11-26 05:05:01.777 23401 DEBUG nova.network.linux_net [req-b5a7bd98-a76b-4b15-bf6e-cfa29d548c08 None None] dmz_cidr-test-[''] init_host /usr/lib/python2.6/site-packages/nova/network/linux_net.py:688

Revision history for this message
David Geng (genggjh) wrote :

So, i think we need enhance the error check when load dmz cidr at least.

Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix proposed to nova (master)

Fix proposed to branch: master
Review: https://review.openstack.org/58491

Changed in nova:
status: New → In Progress
David Geng (genggjh)
summary: - Fail to start nova-network when set dmx_cidr is empty
+ Fail to start nova-network when set dmz_cidr is empty
description: updated
Revision history for this message
Joe Gordon (jogo) wrote :

The patch was abandoned, is this bug still valid?

Changed in nova:
status: In Progress → Incomplete
Sean Dague (sdague)
Changed in nova:
importance: Undecided → Wishlist
status: Incomplete → Opinion
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