It already is, see ovn-controller(8).  Note that ovn-controller only
connects to the southbound database.

On Mon, Mar 06, 2017 at 07:16:51PM +0000, Hexin Wang wrote:
> Fair comment. In that case, is there any plan in making "inactivity probe" 
> interval configurable in ovn north and south dub connection?
> 
> Thanks,
> 
> Hexin
> 
> > On Mar 6, 2017, at 10:59 AM, Ben Pfaff <[email protected]> wrote:
> > 
> > If the application is extremely slow, then the connection is effectively
> > dead, and we might as well drop it anyway.
> > 
> >> On Mon, Mar 06, 2017 at 06:53:51PM +0000, Hexin Wang wrote:
> >> Hi Ben,
> >> 
> >> TCP keep alive gives a good alternative to use cases where there is no 
> >> firewall or proxy concern. Transport level keep alive is good enough for 
> >> ovsdb to determine if connection is alive or not, without worrying if 
> >> application is slow (or extremely slow) in open flow echo reply. 
> >> 
> >> Can we working on pushing this into ovs release?
> >> 
> >> Thanks.
> >> 
> >> Hexin
> >> 
> >> 
> >> 
> >>> On 3/2/17, 3:57 PM, "Ben Pfaff" <[email protected]> wrote:
> >>> 
> >>> We used application-level echo request and replies instead, because they
> >>> are reliable even if a TCP connection passes through a firewall or proxy
> >>> that does not properly pass through TCP keepalives.
> >>> 
> >>>> On Thu, Mar 02, 2017 at 11:48:04PM +0000, Hexin Wang wrote:
> >>>> Hi Ben,
> >>>> 
> >>>> What is the reason that it is not getting to the main release? This 
> >>>> seems the right keep alive mechanism for neutron to talk to ovn 
> >>>> database, if they are not running on the same host/container and would 
> >>>> have to use tcp as the transport.
> >>>> 
> >>>> Thanks.
> >>>> 
> >>>> Hexin
> >>>> 
> >>>> 
> >>>> 
> >>>> 
> >>>>> On 3/2/17, 3:45 PM, "Ben Pfaff" <[email protected]> wrote:
> >>>>> 
> >>>>>> On Thu, Mar 02, 2017 at 11:43:01PM +0000, Hexin Wang wrote:
> >>>>>> I have a question on the following patch that use TCP keep alive for 
> >>>>>> ovsdb connection.
> >>>>>> 
> >>>>>> https://mail.openvswitch.org/pipermail/ovs-dev/2011-April/251891.html
> >>>>>> 
> >>>>>> Did this patch go into ovs main release?
> >>>>> 
> >>>>> No.
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