[ovs-discuss] restarting openvswitch leaves ovs bridge down and with no IP

[Guru Shetty]

I sent in a temporary placeholder patch. But Ben probably has a better
opinion on what has to be done here.

On 29 January 2016 at 11:03, Guru Shetty <guru at ovn.org> wrote:

>
>
> On 29 January 2016 at 10:07, Ben Pfaff <blp at ovn.org> wrote:
>
>> Ouch!
>>
>> If we can't fix that in a reasonable manner for branch-2.5 then we'll
>> need to revert the commit that started calling "ovs-appctl exit" on
>> restart.
>>
> The behavior was introduced with OVS 2.0 as part of the single datapath
> changes.
> I wonder whether a ovs-vswitchd exit should not call bridge_destroy at
> all, but I agree that there is more here than a simple change.
>
>
>
>>
>> On Fri, Jan 29, 2016 at 09:49:50AM -0800, Guru Shetty wrote:
>> > This is nasty! A 'ovs-appctl exit' causes ovs-vswitchd to destroy the
>> > bridges!
>> >
>> > On 28 January 2016 at 19:45, EDGAR CANTU <eocantu at us.ibm.com> wrote:
>> >
>> > > Thank you for your response. I restarted OVS the way you mentioned
>> and I
>> > > don't see the issue.
>> > >
>> > >
>> > > [image: Inactive hide details for Ben Pfaff ---01/28/2016 06:02:24
>> > > PM---Please don't drop the mailing list. It's hard for me to guess
>> w]Ben
>> > > Pfaff ---01/28/2016 06:02:24 PM---Please don't drop the mailing list.
>> It's
>> > > hard for me to guess whether this is an issue with ovs-vswi
>> > >
>> > > From: Ben Pfaff <blp at ovn.org>
>> > > To: EDGAR CANTU/Austin/IBM at IBMUS
>> > > Cc: bugs at openvswitch.org
>> > > Date: 01/28/2016 06:02 PM
>> > > Subject: Re: [ovs-discuss] restarting openvswitch leaves ovs bridge
>> down
>> > > and with no IP
>> > > ------------------------------
>> > >
>> > >
>> > >
>> > > Please don't drop the mailing list.
>> > >
>> > > It's hard for me to guess whether this is an issue with ovs-vswitchd
>> or
>> > > something wrapped around it.  To tell the difference, I would start by
>> > > doing a lower-level start.  One way to do that is to run "ps ax|grep
>> > > ovs-vswitchd" to see the ovs-vswitchd command line, then kill ovs,
>> then
>> > > restart it by running the full command line you saw before.  Another
>> > > way, that will work if you see --monitor in the OVS command line, is
>> to
>> > > just kill ovs-vswitchd with a SEGV signal, e.g. "kill -SEGV `cat
>> > > /var/run/openvswitch/ovs-vswitchd.pid`".
>> > >
>> > > If you restart OVS one of those ways, do you still see the issue?
>> > >
>> > > On Thu, Jan 28, 2016 at 04:51:45PM -0600, EDGAR CANTU wrote:
>> > > >
>> > > > I'm using "systemctl restart openvswitch"
>> > > > This is on Centos 7.1
>> > > >
>> > > >
>> > > >
>> > > >
>> > > > From: Ben Pfaff <blp at ovn.org>
>> > > > To: EDGAR CANTU/Austin/IBM at IBMUS
>> > > > Cc: bugs at openvswitch.org
>> > > > Date: 01/28/2016 04:22 PM
>> > > > Subject: Re: [ovs-discuss] restarting openvswitch leaves ovs bridge
>> down
>> > > >             and with no IP
>> > > >
>> > > >
>> > > >
>> > > > On Wed, Jan 27, 2016 at 04:04:49PM -0600, EDGAR CANTU wrote:
>> > > > > The openvswitch version on master seems to be wiping out the
>> bridge's
>> > > IP
>> > > > > when openvswitch gets restarted and it is only after restarting
>> network
>> > > > > services that the IP comes back.
>> > > > > I'm using commit 6872bf1eb7e46f9c202d512aa5ca6d99fe35d23e
>> > > > > I've also verified that I don' see this issue with versions 2.3.1
>> and
>> > > > 2.4.0
>> > > >
>> > > > What are you doing to restart Open vSwitch?
>> > > >
>> > > >
>> > > >
>> > >
>> > >
>> > >
>> > >
>> > >
>> > >
>> > > _______________________________________________
>> > > discuss mailing list
>> > > discuss at openvswitch.org
>> > > http://openvswitch.org/mailman/listinfo/discuss
>> > >
>> > >
>>
>>
>>
>
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