Bug 1809363

Summary: OVS causing high pings and latency inside guest VM when an active DPDK port fails
Product: Red Hat OpenStack Reporter: chrisbro <chrisbro>
Component: openvswitchAssignee: Flavio Leitner <fleitner>
Status: CLOSED CANTFIX QA Contact: Hekai Wang <hewang>
Severity: urgent Docs Contact:
Priority: high    
Version: 13.0 (Queens)CC: apevec, avettath, cfields, cfontain, chrisw, ctrautma, dhill, dsedgmen, ebarrera, fbaudin, fhallal, fherrman, fleitner, gkadam, gmuthukr, igarciam, i.maximets, jhardee, jraju, kfida, kthakre, ktraynor, mburns, oblaut, pveiga, ravsingh, rhos-maint, rosingh, rurena, satmakur, svaughn, tredaelli, tvvcox, ykulkarn
Target Milestone: ---Keywords: ZStream
Target Release: ---Flags: kfida: needinfo+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: openvswitch-2.9.0-129.el7fdn Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
: 1822198 (view as bug list) Environment:
Last Closed: 2020-06-09 13:40:52 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1822198    
Attachments:
Description Flags
grabinfov1.sh to help capturing information while reproducing the issue.
none
grabinfov3.sh to request additional pcap none

Description chrisbro@redhat.com 2020-03-02 23:04:47 UTC 
Description of problem:
  OVS causing high pings and latency inside guest VM when a active DPDK port fails

Version-Release number of selected component (if applicable):
  Red Hat OpenStack Platform release 13.0.7 (Queens)
  
  openstack-neutron-openvswitch-12.0.6-3.el7ost.noarch        Fri Jun 28 03:59:06 2019
  openvswitch-2.9.0-103.el7fdp.x86_64                         Fri Jun 28 03:58:54 2019
  openvswitch-ovn-central-2.9.0-103.el7fdp.x86_64             Fri Jun 28 03:59:07 2019
  openvswitch-ovn-common-2.9.0-103.el7fdp.x86_64              Fri Jun 28 03:58:56 2019
  openvswitch-ovn-host-2.9.0-103.el7fdp.x86_64                Fri Jun 28 03:59:06 2019
  openvswitch-selinux-extra-policy-1.0-9.el7fdp.noarch        Fri Jun 28 03:58:39 2019
  python-openvswitch-2.9.0-103.el7fdp.x86_64                  Fri Jun 28 03:58:54 2019


How reproducible:
Always

Steps to Reproduce:
1. Fail an active DPDK port 
2.
3.

Actual results:
Should fail over to other port with out causing any latency

Expected results:


Additional info:
Comment 97 Flavio Leitner 2020-03-20 18:35:14 UTC 
Created attachment 1672012 [details]
grabinfov1.sh to help capturing information while reproducing the issue.

Please run the script while running openvswitch-2.9.0-103.el7fdp.bz1809363.3
and provide the ping output files and the generated tarball.

Thanks
fbl
Comment 114 Gowrishankar Muthukrishnan 2020-03-23 10:31:23 UTC 
Created attachment 1672598 [details]
grabinfov3.sh to request additional pcap
Comment 115 Gowrishankar Muthukrishnan 2020-03-23 10:41:33 UTC 
(In reply to Gowrishankar Muthukrishnan from comment #114)
> Created attachment 1672598 [details]
> grabinfov3.sh to request additional pcap

Please note vhu_ping="vhu19948703-d7" at the top of script if the vhu- interface used for ping is right.
Comment 188 Timothy Redaelli 2020-04-23 16:28:11 UTC 
This will be released on FDP 20.D (see the cloned bz#1822198)
Comment 191 Red Hat Bugzilla 2023-09-14 05:53:45 UTC 
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 1000 days