[ovirt-users] oVirt 4.1.1 and ovn problems

[Marcin Mirecki]

It looks like ndb is listening (netstat shows this), but not receiving
anything (log is empty).
This looks like a connectivity issue.
Can the provider host ping the ovn host?
Is firewalld/iptables disabled on both hosts?

Let's make sure that OVN is working fine.
I attach a short python script that checks the connection from the
localhost.
Please check if it can connect to ovn from localhost (just execute this on
the host with ovn: "python tcp_connection_test.py" ).
It should connect and print out all the OVN networks.
Does this work?



On Mon, Apr 24, 2017 at 11:23 PM, Gianluca Cecchi <gianluca.cecchi at gmail.com
> wrote:

>
> On Mon, Apr 24, 2017 at 10:03 PM, Marcin Mirecki <mmirecki at redhat.com>
> wrote:
>
>> Looks like the south db works properly. The north db uses the same
>> mechanism, just a different schema and port.
>>
>> Looking at the netstat output it looks like ovn north db is not even
>> listening, or is there anything for 6641?
>>
>>
>>
>>
> Actually yes... it seems that the switch "-t" with the "-p" doesn't catch
> the 6641 and 6642 "LISTEN" lines, while if I use "-a" instead of "-t" I get
> them too...
>
> with "-a"
> root at ovmgr1 ~]# netstat -apn | grep 664
> tcp        0      0 0.0.0.0:6641            0.0.0.0:*
> LISTEN      6691/ovsdb-server
> tcp        0      0 0.0.0.0:6642            0.0.0.0:*
> LISTEN      6699/ovsdb-server
> tcp        0      0 10.4.192.43:6642        10.4.168.76:38882
> ESTABLISHED 6699/ovsdb-server
> tcp        0      0 10.4.192.43:6642        10.4.168.75:45486
> ESTABLISHED 6699/ovsdb-server
> tcp        0      0 10.4.192.43:6642        10.4.168.74:59176
> ESTABLISHED 6699/ovsdb-server
> unix  3      [ ]         STREAM     CONNECTED     14119
> 664/vmtoolsd
>
> with "-t"
> [root at ovmgr1 ~]# netstat -tpn | grep 664
> tcp        0      0 10.4.192.43:6642        10.4.168.76:38882
> ESTABLISHED 6699/ovsdb-server
> tcp        0      0 10.4.192.43:6642        10.4.168.75:45486
> ESTABLISHED 6699/ovsdb-server
> tcp        0      0 10.4.192.43:6642        10.4.168.74:59176
> ESTABLISHED 6699/ovsdb-server
>
>
>


-- 

MARCIN mIRECKI

Red Hat

<https://www.redhat.com>
<https://red.ht/sig>
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