Hi Ben, do we have any update on this ?

On 08/09/21, 9:31 PM, "Saurabh Deokate" <saurabh.deok...@nutanix.com> wrote:

    Hi Ben, do we have any update on this issue ?  

    ~Saurabh.

    On 24/08/21, 11:21 AM, "Saurabh Deokate" <saurabh.deok...@nutanix.com> 
wrote:

        Hi Ben, can you please help us understand why are we seeing these 
retrying even after setting inactivity_probe to 0. Are we missing on some 
configuration ? 

        ~Saurabh.

        On 18/08/21, 11:50 AM, "Saurabh Deokate" <saurabh.deok...@nutanix.com> 
wrote:

            Hi Ben,

            I tested with latest OVS 2.16, which has your fix, even after 
setting inactivity_probe to 0, we are still seeing ovs retrying after every 5 
sec. 
            Can you please help us with this ?

            Here are the details - 
            root@ip-10-192-20-160:/home/ubuntu# ovs-vsctl --version 
            ovs-vsctl (Open vSwitch) 2.16.0
            DB Schema 8.3.0

            root@ip-10-192-20-160:/home/ubuntu# ovs-vsctl list controller 
            _uuid               : e2947bdf-3695-42d0-a8fc-5efc7c1a7a01
            connection_mode     : []
            controller_burst_limit: []
            controller_queue_size: []
            controller_rate_limit: []
            enable_async_messages: []
            external_ids        : {}
            inactivity_probe    : 0
            is_connected        : true
            local_gateway       : []
            local_ip            : []
            local_netmask       : []
            max_backoff         : []
            other_config        : {}
            role                : other
            status              : {last_error="Connection timed out", 
sec_since_connect="7", sec_since_disconnect="9", state=IDLE}
            target              : "tcp:127.0.0.1:10000"
            type                : []

            LOGS - /var/log//openvswitch/ovs-vswitchd.log  

            2021-08-18T06:06:06.874Z|00830|rconn|ERR|br0<->tcp:127.0.0.1:10000: 
no response to inactivity probe after 5 seconds, disconnecting
            
2021-08-18T06:06:07.884Z|00831|rconn|INFO|br0<->tcp:127.0.0.1:10000: 
connecting...
            
2021-08-18T06:06:07.889Z|00832|rconn|INFO|br0<->tcp:127.0.0.1:10000: connected
            2021-08-18T06:06:17.890Z|00833|rconn|ERR|br0<->tcp:127.0.0.1:10000: 
no response to inactivity probe after 5 seconds, disconnecting
            
2021-08-18T06:06:18.903Z|00834|rconn|INFO|br0<->tcp:127.0.0.1:10000: 
connecting...
            
2021-08-18T06:06:19.404Z|00835|rconn|INFO|br0<->tcp:127.0.0.1:10000: connected
            2021-08-18T06:06:20.405Z|00836|fail_open|INFO|Still in fail-open 
mode after 184 seconds disconnected from controller
            2021-08-18T06:06:29.405Z|00837|rconn|ERR|br0<->tcp:127.0.0.1:10000: 
no response to inactivity probe after 5 seconds, disconnecting
            
2021-08-18T06:06:30.419Z|00838|rconn|INFO|br0<->tcp:127.0.0.1:10000: 
connecting...
            
2021-08-18T06:06:30.884Z|00839|rconn|INFO|br0<->tcp:127.0.0.1:10000: connected
            2021-08-18T06:06:40.884Z|00840|rconn|ERR|br0<->tcp:127.0.0.1:10000: 
no response to inactivity probe after 5 seconds, disconnecting
            
2021-08-18T06:06:41.884Z|00841|rconn|INFO|br0<->tcp:127.0.0.1:10000: 
connecting...
            
2021-08-18T06:06:41.935Z|00842|rconn|INFO|br0<->tcp:127.0.0.1:10000: connected

            On 02/07/21, 11:40 PM, "Ben Pfaff" <b...@ovn.org> wrote:

                I just pushed the fixes to the repo, so it'll be released as 
part of the
                next regular OVS release.

                Building from a patch isn't any different from building any 
other way.

                On Thu, Jul 01, 2021 at 06:19:08AM +0000, Saurabh Deokate wrote:
                > Hi Ben, 
                > 
                > I have two questions,
                > 1. When is this patch going to be released ? 
                > 2. Do we have any documentation for building modules from 
patch?
                > 
                > On 28/06/21, 10:25 PM, "Ben Pfaff" <b...@ovn.org> wrote:
                > 
                >     I recommend trying the patches that I posted:
                >     
https://urldefense.proofpoint.com/v2/url?u=https-3A__mail.openvswitch.org_pipermail_ovs-2Ddev_2021-2DJune_383783.html&d=DwIDaQ&c=s883GpUCOChKOHiocYtGcg&r=jK9phexdherJTNL6qWfkjyz7vNK2P5VYFIeRp9Vdy5s&m=0Y5dlQZ6-TXyNkmMDUiCUN6JaZJeIf_W69zr7CdJ_3A&s=7gXiz2Z8l7MPXHoqsyHwzyX4sozNLZM5RFJam3PSMRA&e=
 
                >     
https://urldefense.proofpoint.com/v2/url?u=https-3A__mail.openvswitch.org_pipermail_ovs-2Ddev_2021-2DJune_383784.html&d=DwIDaQ&c=s883GpUCOChKOHiocYtGcg&r=jK9phexdherJTNL6qWfkjyz7vNK2P5VYFIeRp9Vdy5s&m=0Y5dlQZ6-TXyNkmMDUiCUN6JaZJeIf_W69zr7CdJ_3A&s=GZqZu8jql-ra0ik1wyfKSM4p6uNSvycyhJnMkTtIJTc&e=
 
                > 
                >     On Tue, Jun 15, 2021 at 07:24:06AM +0000, Saurabh Deokate 
wrote:
                >     > Hi Ben,
                >     > 
                >     > Here is the output for ovs-vsctl list controller 
                >     > 
                >     > [root@172-31-64-26-aws-eu-central-1c ~]# ovs-vsctl list 
controller
                >     > _uuid : eb56176a-ad32-4eb0-9cd8-7ab3bd448a68
                >     > connection_mode : out-of-band
                >     > controller_burst_limit: []
                >     > controller_queue_size: []
                >     > controller_rate_limit: []
                >     > enable_async_messages: []
                >     > external_ids : {}
                >     > inactivity_probe : 0
                >     > is_connected : true
                >     > local_gateway : []
                >     > local_ip : []
                >     > local_netmask : []
                >     > max_backoff : []
                >     > other_config : {}
                >     > role : other
                >     > status : {last_error="Connection refused", 
sec_since_connect="42606", sec_since_disconnect="42614", state=ACTIVE}
                >     > target : "tcp:127.0.0.1:6653"
                >     > type : []
                >     > 
                >     > Let me know if you need any other details.
                >     > 
                >     > ~Saurabh.
                >     > 
                >     > On 11/06/21, 4:03 AM, "Ben Pfaff" <b...@ovn.org> wrote:
                >     > 
                >     >     On Mon, Jun 07, 2021 at 02:51:58PM +0000, Saurabh 
Deokate wrote:
                >     >     > Hi Team,
                >     >     > 
                >     >     > We are seeing an issue in OVS 2.14.0 after moving 
from 2.8.0. We first set the controller on the bridge and then set inactivity 
probe for our controller to 0 to disable new connection attempts by ovs. After 
this we start our controller to serve request. But in the new version of OVS 
somehow we still see inactivity probe kicking in after every 5s and trying to 
reconnect. This issue is triggered when we are in the middle of handling a 
packet in our controller (i.e. OFController) which is blocked for almost 40s.
                >     >     > 
                >     >     > 
                >     >     > Kernel version: CentOS Linux release 7.9.2009
                >     >     > Output of ovs-vsctl list controller command shows 
inactivity_probe: 0
                >     >     > 
                >     >     > Below is the snippet from ovs-vswitchd.log
                >     >     > 
                >     >     > 
021-05-11T22:32:55.378Z|00608|rconn|INFO|br0.uvms<->tcp:127.0.0.1:6653: 
connected
                >     >     > 
2021-05-11T22:33:05.382Z|00609|connmgr|INFO|br0.uvms<->tcp:127.0.0.1:6653: 44 
flow_mods 10 s ago (44 adds)
                >     >     > 
2021-05-11T22:33:05.386Z|00610|rconn|ERR|br0.uvms<->tcp:127.0.0.1:6653: no 
response to inactivity probe after 5 seconds, disconnecting
                >     >     > 
2021-05-11T22:33:06.406Z|00611|rconn|INFO|br0.uvms<->tcp:127.0.0.1:6653: 
connecting...
                >     >     > 
2021-05-11T22:33:06.438Z|00612|rconn|INFO|br0.uvms<->tcp:127.0.0.1:6653: 
connected
                >     >     > 
2021-05-11T22:33:16.438Z|00613|rconn|ERR|br0.uvms<->tcp:127.0.0.1:6653: no 
response to inactivity probe after 5 seconds, disconnecting
                >     >     > 
2021-05-11T22:33:17.921Z|00614|rconn|INFO|br0.uvms<->tcp:127.0.0.1:6653: 
connecting...
                >     >     > 
2021-05-11T22:33:18.108Z|00615|rconn|INFO|br0.uvms<->tcp:127.0.0.1:6653: 
connected
                >     >     > 
2021-05-11T22:33:28.110Z|00616|rconn|ERR|br0.uvms<->tcp:127.0.0.1:6653: no 
response to inactivity probe after 5 seconds, disconnecting
                >     >     > 
2021-05-11T22:33:29.433Z|00617|rconn|INFO|br0.uvms<->tcp:127.0.0.1:6653: 
connecting...
                >     >     > 
2021-05-11T22:33:29.933Z|00618|rconn|INFO|br0.uvms<->tcp:127.0.0.1:6653: 
connected
                >     >     > 
                >     >     > 
                >     >     > Can you please help us find out what could be 
wrong with this configuration and what is the expected behaviour from ovs 
switch when the receiver on the controller is blocked for long.
                >     > 
                >     >     Hmm, I can't reproduce this with current OVS.  I do 
see a problem with
                >     >     the fail-open implementation; I'll see a patch for 
that.
                >     > 
                >     >     Can you show the output of "ovs-vsctl list 
controller"?
                >     > 
                > 




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