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Thanks for the reply. It is probably related somehow because if I remove the host flag (and leave it default) then I get no problems with launching instances.

From: Vaze, Mandar [mailto:Mandar.Vaze at nttdata.com]
Sent: Thursday, June 21, 2012 2:02 PM
To: Czubak, Piotr; openstack at lists.launchpad.net
Subject: RE: Instances not starting after changing host flag

This may not be related to host flag.

See similar problem being discussed in this thread :  https://lists.launchpad.net/openstack/msg13314.html
(Same symptoms as yours, error in allocate_for_instance, rpc timeouts)

-Mandar

From: openstack-bounces+mandar.vaze=nttdata.com at lists.launchpad.net<mailto:openstack-bounces+mandar.vaze=nttdata.com at lists.launchpad.net> [mailto:openstack-bounces+mandar.vaze=nttdata.com at lists.launchpad.net] On Behalf Of Czubak, Piotr
Sent: Thursday, June 21, 2012 2:28 PM
To: openstack at lists.launchpad.net<mailto:openstack at lists.launchpad.net>
Subject: [Openstack] Instances not starting after changing host flag

Hi All,

I have Essex set up and running, everything works fine till I try to change "host" flag in nova.conf:

--host=test

After reboot, instances don't start, only error is reported. Any ideas how to fix this? Logs from nova-compute and nova-network attached below.

Regards,
Piotr Czubak



Logs from nova-compute.log:

Timed out waiting for RPC response: timed out
2012-06-21 04:35:16 TRACE nova.rpc.common Traceback (most recent call last):
2012-06-21 04:35:16 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 490, in ensure
2012-06-21 04:35:16 TRACE nova.rpc.common     return method(*args, **kwargs)
2012-06-21 04:35:16 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 567, in _consume
2012-06-21 04:35:16 TRACE nova.rpc.common     return self.connection.drain_events(timeout=timeout)
2012-06-21 04:35:16 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 175, in drain_events
2012-06-21 04:35:16 TRACE nova.rpc.common     return self.transport.drain_events(self.connection, **kwargs)
2012-06-21 04:35:16 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 238, in drain_events
2012-06-21 04:35:16 TRACE nova.rpc.common     return connection.drain_events(**kwargs)
2012-06-21 04:35:16 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 57, in drain_events
2012-06-21 04:35:16 TRACE nova.rpc.common     return self.wait_multi(self.channels.values(), timeout=timeout)
2012-06-21 04:35:16 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 63, in wait_multi
2012-06-21 04:35:16 TRACE nova.rpc.common     chanmap.keys(), allowed_methods, timeout=timeout)
2012-06-21 04:35:16 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 120, in _wait_multiple
2012-06-21 04:35:16 TRACE nova.rpc.common     channel, method_sig, args, content = read_timeout(timeout)
2012-06-21 04:35:16 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 94, in read_timeout
2012-06-21 04:35:16 TRACE nova.rpc.common     return self.method_reader.read_method()
2012-06-21 04:35:16 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/amqplib/client_0_8/method_framing.py", line 221, in read_method
2012-06-21 04:35:16 TRACE nova.rpc.common     raise m
2012-06-21 04:35:16 TRACE nova.rpc.common timeout: timed out
2012-06-21 04:35:16 TRACE nova.rpc.common
Instance failed network setup
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473] Traceback (most recent call last):
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 559, in _allocate_network
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]     requested_networks=requested_networks)
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]   File "/usr/lib/python2.7/dist-packages/nova/network/api.py", line 170, in allocate_for_instance
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]     'args': args})
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]   File "/usr/lib/python2.7/dist-packages/nova/rpc/__init__.py", line 68, in call
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]     return _get_impl().call(context, topic, msg, timeout)
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]   File "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 674, in call
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]     return rpc_amqp.call(context, topic, msg, timeout, Connection.pool)
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]   File "/usr/lib/python2.7/dist-packages/nova/rpc/amqp.py", line 338, in call
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]     rv = list(rv)
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]   File "/usr/lib/python2.7/dist-packages/nova/rpc/amqp.py", line 299, in __iter__
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]     self._iterator.next()
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]   File "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 572, in iterconsume
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]     yield self.ensure(_error_callback, _consume)
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]   File "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 503, in ensure
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]     error_callback(e)
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]   File "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 553, in _error_callback
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]     raise rpc_common.Timeout()
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473] Timeout: Timeout while waiting on RPC response.
2012-06-21 04:35:16 TRACE nova.compute.manager [instance: acefc36d-81bf-4352-9cb6-ca0228315473]

Nova network:

2012-06-21 04:39:40 INFO nova.rpc.common [req-f691b443-9bbc-424e-9acb-3675da294dfd None None] Connected to AMQP server on 10.102.44.121:5672
2012-06-21 04:39:59 ERROR nova.rpc.common [-] Timed out waiting for RPC response: timed out
2012-06-21 04:39:59 TRACE nova.rpc.common Traceback (most recent call last):
2012-06-21 04:39:59 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 490, in ensure
2012-06-21 04:39:59 TRACE nova.rpc.common     return method(*args, **kwargs)
2012-06-21 04:39:59 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 567, in _consume
2012-06-21 04:39:59 TRACE nova.rpc.common     return self.connection.drain_events(timeout=timeout)
2012-06-21 04:39:59 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 175, in drain_events
2012-06-21 04:39:59 TRACE nova.rpc.common     return self.transport.drain_events(self.connection, **kwargs)
2012-06-21 04:39:59 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 238, in drain_events
2012-06-21 04:39:59 TRACE nova.rpc.common     return connection.drain_events(**kwargs)
2012-06-21 04:39:59 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 57, in drain_events
2012-06-21 04:39:59 TRACE nova.rpc.common     return self.wait_multi(self.channels.values(), timeout=timeout)
2012-06-21 04:39:59 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 63, in wait_multi
2012-06-21 04:39:59 TRACE nova.rpc.common     chanmap.keys(), allowed_methods, timeout=timeout)
2012-06-21 04:39:59 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 120, in _wait_multiple
2012-06-21 04:39:59 TRACE nova.rpc.common     channel, method_sig, args, content = read_timeout(timeout)
2012-06-21 04:39:59 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 94, in read_timeout
2012-06-21 04:39:59 TRACE nova.rpc.common     return self.method_reader.read_method()
2012-06-21 04:39:59 TRACE nova.rpc.common   File "/usr/lib/python2.7/dist-packages/amqplib/client_0_8/method_framing.py", line 221, in read_method
2012-06-21 04:39:59 TRACE nova.rpc.common     raise m
2012-06-21 04:39:59 TRACE nova.rpc.common timeout: timed out
2012-06-21 04:39:59 TRACE nova.rpc.common

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