Hi, Sergey,
I remember I had similar problem when I switched to quantum(neutron's previous name) from nova-network. But, I can't recall how I solved it exactly, it would be something like previous nova-network NAT caused the problem, so, if you switched to neutron from nova-network at the same system, you might want to look at your NAT to see if you still have some NAT setup remaining that came from nova-network, and (e.g. redirect :80 to 0.0.0.0:8775)
        
> I guess, metadata service is supposed to listen on 192.168.0.2, but it's not. Yes, it's not, if I understand it correctly, it will be redirected to metadata port in name space, so, you won't see it actually listens on 80 port.


Best regards,
Felix Lee ~

On 2014年06月14日 19:44, Sergey Motovilovets wrote:

This can probably be useful too:

 From network node

# ip netns ls
qdhcp-1b982b98-62db-4c87-867b-0490bac8fb52
qrouter-c7e7ea00-a362-4f4f-9a1c-a54ac86eb3be

# ps -x | grep metadata
�1469 ? � � � �S � � �0:00 /usr/bin/python
/usr/bin/neutron-ns-metadata-proxy
--pid_file=/var/lib/neutron/external/pids/6c91714c-c1aa-41d7-88ba-249df3a8368c.pid
--metadata_proxy_socket=/var/lib/neutron/metadata_proxy
--network_id=6c91714c-c1aa-41d7-88ba-249df3a8368c
--state_path=/var/lib/neutron --metadata_port=80
--log-file=neutron-ns-metadata-proxy-6c91714c-c1aa-41d7-88ba-249df3a8368c.log
--log-dir=/var/log/neutron
�5937 ? � � � �S � � �0:00 /usr/bin/python
/usr/bin/neutron-ns-metadata-proxy
--pid_file=/var/lib/neutron/external/pids/fa72c69b-2ca2-4d4d-ab8c-d6fa6e8e72d6.pid
--metadata_proxy_socket=/var/lib/neutron/metadata_proxy
--network_id=fa72c69b-2ca2-4d4d-ab8c-d6fa6e8e72d6
--state_path=/var/lib/neutron --metadata_port=80
--log-file=neutron-ns-metadata-proxy-fa72c69b-2ca2-4d4d-ab8c-d6fa6e8e72d6.log
--log-dir=/var/log/neutron
�8108 ? � � � �S � � �0:00 /usr/bin/python
/usr/bin/neutron-ns-metadata-proxy
--pid_file=/var/lib/neutron/external/pids/c7e7ea00-a362-4f4f-9a1c-a54ac86eb3be.pid
--metadata_proxy_socket=/var/lib/neutron/metadata_proxy
--router_id=c7e7ea00-a362-4f4f-9a1c-a54ac86eb3be
--state_path=/var/lib/neutron --metadata_port=9697
--log-file=neutron-ns-metadata-proxy-c7e7ea00-a362-4f4f-9a1c-a54ac86eb3be.log
--log-dir=/var/log/neutron



2014-06-14 20:38 GMT+03:00 Sergey Motovilovets
<motovilovets.ser...@gmail.com <mailto:motovilovets.ser...@gmail.com>>:

    Hi, Mike.

    There are no routes in my VM's except for the default one. Private
    subnet I'm using is 192.168.0.0/24 <http://192.168.0.0/24> with
    neutron router on 192.168.0.1.

    # route -n
    Kernel IP routing table
    Destination � � Gateway � � � � Genmask � � � � Flags Metric Ref �
    �Use Iface
    0.0.0.0 � � � � 192.168.0.1 � � 0.0.0.0 � � � � UG � �0 � � �0 � � �
    �0 eth0
    192.168.0.0 � � 0.0.0.0 � � � � 255.255.255.0 � U � � 0 � � �0 � � �
    �0 eth0

    Following is a part of Fedora cloud-init script output. Instance
    tries to get info from 169.254.169.254 and then switches to
    192.168.0.2, which is an interface with dnsmasq injected by neutron.
    I guess, metadata service is supposed to listen on 192.168.0.2, but
    it's not.

    [ 61.409140] cloud-init[512]: 2014-06-14 17:23:53,183 -
    url_helper.py[WARNING]: Calling
    'http://169.254.169.254/2009-04-04/meta-data/instance-id' failed
    [50/120s]: request error [HTTPConnectionPool(host='169.254.169.254',
    port=80): Request timed out. (timeout=50.0)]

    [  112.463197] cloud-init[512]: 2014-06-14 17:24:44,237 - 
url_helper.py[WARNING]: Calling 
'http://169.254.169.254/2009-04-04/meta-data/instance-id' failed [101/120s]: 
request error [HTTPConnectionPool(host='169.254.169.254', port=80): Request 
timed out. (timeout=50.0)]
    [  130.489916] cloud-init[512]: 2014-06-14 17:25:02,264 - 
url_helper.py[WARNING]: Calling 
'http://169.254.169.254/2009-04-04/meta-data/instance-id' failed [119/120s]: 
request error [HTTPConnectionPool(host='169.254.169.254', port=80): Request 
timed out. (timeout=17.0)]
    [  131.494462] cloud-init[512]: 2014-06-14 17:25:03,266 - 
DataSourceEc2.py[CRITICAL]: Giving up on md from 
['http://169.254.169.254/2009-04-04/meta-data/instance-id'] after 120 seconds
    [  131.502647] cloud-init[512]: 2014-06-14 17:25:03,273 - url_helper.py[WARNING]: 
Calling 'http://192.168.0.2//latest/meta-data/instance-id' failed [0/120s]: request 
error [HTTPConnectionPool(host='192.168.0.2', port=80): Max retries exceeded with 
url: //latest/meta-data/instance-id (Caused by <class 'socket.error'>: [Errno 
111] Connection refused)]





    2014-06-14 20:04 GMT+03:00 Mike Spreitzer <mspre...@us.ibm.com
    <mailto:mspre...@us.ibm.com>>:

        Sergey Motovilovets <motovilovets.ser...@gmail.com
        <mailto:motovilovets.ser...@gmail.com>> wrote on 06/14/2014
        11:00:09 AM:
        ...

         > Another problem is metadata service. I've tried like
        everything I
         > found regarding neutron<->metadata configuration, without any
         > success. I just can't connect to 169.254.169.254 from virtual
         > machines, though they get configured by dhcp, can ping each
        other in
         > their subnet and I can allocate floating IPs to them.

         > ...

        Did yo look to see if there is a wrong route in your VM?
        �Sometimes I find the metadata service is messed up by a bogus
        entry in the VM's routing table.

        Regards,
        Mike





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--
Felix H.T Lee                           Academia Sinica Grid & Cloud.
Tel: +886-2-27898308
Office: Room P111, Institute of Physics, 128 Academia Road, Section 2, Nankang, Taipei 115, Taiwan

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