[Openstack] Can't connect to RabbitMQ

Dheerendra dheerendra.madhusudhana at gmail.com
Wed Oct 30 13:32:33 UTC 2013


also look at the logs /var/log/nova/nova-network.log on compute node. It
should tell whether it is able to connect to rabbit on controller.

-Dheerendra


On Wed, Oct 30, 2013 at 6:41 PM, Dheerendra <
dheerendra.madhusudhana at gmail.com> wrote:

> Hi Florian
>
> I observed this kind of issue when there is race condition.
>
> 1. RabbitMQ is NOT running on controller-node
> 2. You issue nova-network from compute-node. Now this step hangs.
> 3. Just see what is happening in nova-api.log on controller(tail -f
> /var/log/nova/nova-api.log)
> 4. Now you start the RabbitMQ on the controller node.
> 5. nova-network command compute returns the error. Also you will see
> 'timeout' error in nova-api.log.
>
> From your log I suspect this because initially RabitMQ was not up. Looks
> like you started it afterwards.
> Did you try to run the same 'nova-network' command for the second time ?
> i.e after restarting the rabbitMQ ?
>
> -Dheerendra
>
>
>
> On Wed, Oct 30, 2013 at 3:47 PM, Florian Lindner <mailinglists at xgm.de>wrote:
>
>> Am Dienstag, 29. Oktober 2013, 14:32:00 schrieb Razique Mahroua:
>> > You are using Neutron?
>> > Looks like the Neutron server is unable to perform the request actually
>>
>> Actually no, I don't think so, I think I use the nova-network.
>>
>> The documentation
>> http://docs.openstack.org/havana/install-guide/install/apt/content/ says:
>>
>> Configuring Networking can be one of the most bewildering experiences you
>> will
>> encounter when working with OpenStack. To assist in this we have chosen
>> the
>> simplest production-ready configuration for this guide: the legacy
>> networking
>> in OpenStack Compute, with a flat network, that takes care of DHCP.
>>
>> This setup uses "multi-host" functionality: the networking is configured
>> to be
>> highly available by splitting networking functionality across multiple
>> hosts.
>> As a result, there is no single network controller that acts as a single
>> point
>> of failure. Because each compute node is configured for networking in this
>> setup, no additional networking configuration is required on the
>> controller.
>>
>> (Chapter 5: Enabling Networking)
>>
>> and I have installed the nova-network package.
>>
>> I've downloaded my entire /etc to http://xgm.de/upload/etc/ if you or
>> anyone
>> else wants to have a look! Yes, these "123" are the actual passwords, it's
>> just from a VM on my local computer.  ;-)
>>
>> Thanks a lot!
>>
>> Florian
>>
>> >
>> >
>> > On October 29, 2013 at 12:00:18, Florian Lindner (mailinglists at xgm.de)
>> > wrote:
>> > Am Montag, 28. Oktober 2013, 13:44:00 schrieb Craig E. Ward:
>> > > On the RabbitMQ server, are vhost and user id setup correctly?
>> >
>> > Ok, part of the problem seemed to be that the documentation assumed I
>> set
>> > the password guest for the rabbit guest account. Did that now and the
>> > problem changed:
>> >
>> > root at controller:~# nova network-create vmnet --fixed-range-v4=
>> 10.0.0.0/24 --
>> > bridge-interface=br100 --multi-host=T
>> > ERROR: The server has either erred or is incapable of performing the
>> > requested operation. (HTTP 500) (Request-ID:
>> > req-900a80bd-dfc1-49fc-9599-239fd5b9b7e3)
>> >
>> > nova-api.log shows:
>> >
>> > http://pastebin.com/raw.php?i=13U8a4Na
>> >
>> >
>> > 2013-10-29 19:14:18.587 1272 INFO nova.osapi_compute.wsgi.server [-]
>> (1272)
>> > accepted ('192.168.122.10', 53116)
>> > 2013-10-29 19:14:19.207 1272 INFO nova.openstack.common.rpc.common
>> > [req-900a80bd-dfc1-49fc-9599-239fd5b9b7e3
>> a1dd41c156c64810b41d46d4062a2b17
>> > 68d6cb4e2ceb4700931b6489ad25fb6f] Connected to AMQP server on
>> > controller:5672 2013-10-29 19:14:19.218 1272 INFO
>> > nova.openstack.common.rpc.common
>> [req-900a80bd-dfc1-49fc-9599-239fd5b9b7e3
>> > a1dd41c156c64810b41d46d4062a2b17 68d6cb4e2ceb4700931b6489ad25fb6f]
>> > Connected to AMQP server on controller:5672 2013-10-29 19:15:19.238 1272
>> > ERROR nova.api.openstack [req-900a80bd- dfc1-49fc-9599-239fd5b9b7e3
>> > a1dd41c156c64810b41d46d4062a2b17
>> > 68d6cb4e2ceb4700931b6489ad25fb6f] Caught error: Timeout while waiting
>> on RPC
>> > response - topic: "network", RPC method: "create_networks" info:
>> > "<unknown>" 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack
>> Traceback
>> > (most recent call last):
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/nova/api/openstack/__init__.py", line
>> 119,
>> > in __call__
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack return
>> > req.get_response(self.application)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/webob/request.py", line 1296, in send
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack application,
>> > catch_exc_info=False)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/webob/request.py", line 1260, in
>> > call_application
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack app_iter =
>> > application(self.environ, start_response)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/webob/dec.py", line 144, in __call__
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack return
>> resp(environ,
>> > start_response)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> >
>> "/usr/lib/python2.7/dist-packages/keystoneclient/middleware/auth_token.py",
>> > line 539, in __call__
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack return
>> self.app(env,
>> > start_response)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/webob/dec.py", line 144, in __call__
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack return
>> resp(environ,
>> > start_response)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/webob/dec.py", line 144, in __call__
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack return
>> resp(environ,
>> > start_response)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/routes/middleware.py", line 131, in
>> > __call__ 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack response
>> =
>> > self.app(environ, start_response)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/webob/dec.py", line 144, in __call__
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack return
>> resp(environ,
>> > start_response)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/webob/dec.py", line 130, in __call__
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack resp =
>> > self.call_func(req, *args, **self.kwargs)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/webob/dec.py", line 195, in call_func
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack return
>> > self.func(req, *args, **kwargs)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/nova/api/openstack/wsgi.py", line
>> 917, in
>> > __call__
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack content_type,
>> body,
>> > accept)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/nova/api/openstack/wsgi.py", line
>> 976, in
>> > _process_stack
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack action_result =
>> > self.dispatch(meth, request, action_args)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/nova/api/openstack/wsgi.py", line
>> 1057, in
>> > dispatch
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack return
>> > method(req=request, **action_args)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-
>> > packages/nova/api/openstack/compute/contrib/os_networks.py", line 126,
>> in
>> > create
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack network =
>> > self.network_api.create(context, **params)[0]
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/nova/network/api.py", line 93, in
>> wrapped
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack return func(self,
>> > context, *args, **kwargs)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/nova/network/api.py", line 142, in
>> create
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack return
>> > self.network_rpcapi.create_networks(context, **kwargs)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/nova/network/rpcapi.py", line 102, in
>> > create_networks
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack return
>> > self.client.call(ctxt, 'create_networks', **kwargs)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/nova/rpcclient.py", line 85, in call
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack return
>> > self._invoke(self.proxy.call, ctxt, method, **kwargs)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/nova/rpcclient.py", line 63, in
>> _invoke
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack return
>> > cast_or_call(ctxt, msg, **self.kwargs)
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack File
>> > "/usr/lib/python2.7/dist-packages/nova/openstack/common/rpc/proxy.py",
>> line
>> > 130, in call
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack exc.info,
>> > real_topic, msg.get('method'))
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack Timeout: Timeout
>> while
>> > waiting on RPC response - topic: "network", RPC method:
>> "create_networks"
>> > info: "<unknown>"
>> > 2013-10-29 19:15:19.238 1272 TRACE nova.api.openstack
>> > 2013-10-29 19:15:19.249 1272 INFO nova.api.openstack [req-900a80bd-
>> > dfc1-49fc-9599-239fd5b9b7e3 a1dd41c156c64810b41d46d4062a2b17
>> > 68d6cb4e2ceb4700931b6489ad25fb6f]
>> > http://controller:8774/v2/68d6cb4e2ceb4700931b6489ad25fb6f/os-networks
>> > returned with HTTP 500
>> > 2013-10-29 19:15:19.255 1272 INFO nova.osapi_compute.wsgi.server
>> > [req-900a80bd-dfc1-49fc-9599-239fd5b9b7e3
>> a1dd41c156c64810b41d46d4062a2b17
>> > 68d6cb4e2ceb4700931b6489ad25fb6f] 192.168.122.10 "POST
>> > /v2/68d6cb4e2ceb4700931b6489ad25fb6f/os-networks HTTP/1.1" status: 500
>> len:
>> > 335 time: 60.6673729
>> >
>> > Sorry, I got not idea...
>> >
>> > Thanks!
>> > Florian
>> >
>> > > % rabbitmqctl list_users
>> > >
>> > > % rabbitmqctl list_vhosts
>> > >
>> > > The user and vhost should match what is in the OpenStack
>> configurations.
>> > >
>> > > On 10/28/13 1:14 PM, Florian Lindner wrote:
>> > > > Am Montag, 28. Oktober 2013, 12:04:02 schrieb Razique Mahroua:
>> > > >> hey
>> > > >> is Ā«controllerĀ» a hostame all ur servers can resolve?
>> > > >
>> > > > Yes, set in /etc/hosts.
>> > > >
>> > > > Regards,
>> > > > Florian
>> > > >
>> > > >> - Razique
>> > > >>
>> > > >> On Oct 28, 2013, at 11:40, Florian Lindner <mailinglists at xgm.de>
>> wrote:
>> > > >>> Hello,
>> > > >>>
>> > > >>> I've installed OpenStack on a Ubuntu 12.04 VM according to the
>> install
>> > > >>> guide. It worked fine until I created the compute node on a
>> second VM
>> > > >>> and
>> > > >>> tried to set up nova networking:
>> > > >>>
>> > > >>>
>> http://docs.openstack.org/havana/install-guide/install/apt/content/nov
>> > > >>> a-> >>> ne twork.html
>> > > >>>
>> > > >>> # nova network-create vmnet --fixed-range-v4=10.0.0.0/24--bridge-
>> > > >>> interface=br100 --multi-host=T
>> > > >>>
>> > > >>> just does nothing until canceled. I tried on the controller and
>> > > >>> compute1
>> > > >>> node.
>> > > >>>
>> > > >>> nova-api.log shows:
>> > > >>>
>> > > >>> ERROR nova.openstack.common.rpc.common AMQP server on
>> controller:5672
>> > > >>> is
>> > > >>> unreachable: Socket closed. Trying again in 1 seconds.
>> > > >>> INFO nova.openstack.common.rpc.common Reconnecting to AMQP server
>> on
>> > > >>> controller:5672
>> > > >>>
>> > > >>> controller:~# netstat -lpn | grep beam
>> > > >>> tcp 0 0 0.0.0.0:36595 0.0.0.0:*
>> > > >>> LISTEN
>> > > >>> 1045/beam
>> > > >>> tcp6 0 0 :::5672 :::*
>> > > >>> LISTEN
>> > > >>> 1045/beam
>> > > >>>
>> > > >>> It listens on this port, but IPv6. IMO on linux listing on an IPv6
>> > > >>> port
>> > > >>> also means listening on the same v4 port.
>> > > >>>
>> > > >>> What's wrong with the installation?
>>
>>
>>
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>
>
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