Bug 1871819 - Prepare default OVN configuration for scaling scenarios
Summary: Prepare default OVN configuration for scaling scenarios
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Virtualization Manager
Classification: Red Hat
Component: ovirt-provider-ovn
Version: 4.3.9
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: ovirt-4.4.3
: ---
Assignee: Dominik Holler
QA Contact: Michael Burman
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-08-24 11:15 UTC by Dominik Holler
Modified: 2023-10-06 21:28 UTC (History)
5 users (show)

Fixed In Version: ovirt-engine-4.4.3.5
Doc Type: Bug Fix
Doc Text:
Previously, when changes were made in the logical network, the ovn-controller on the host sometimes exceeded the timeout interval during recalculation, and calculation was triggered repeatedly. As a result, OVN networking failed. In this release, recalculation by the ovn-controller is only triggered once per change, and OVN networking is maintained.
Clone Of:
Environment:
Last Closed: 2020-11-24 13:10:38 UTC
oVirt Team: Network
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2020:5212 0 None None None 2020-11-24 13:10:45 UTC
oVirt gerrit 111344 0 master MERGED driver: configure for scaling scenarios 2021-02-08 16:36:02 UTC
oVirt gerrit 111345 0 master MERGED packaging: setup: Set OVN timeout 2021-02-08 16:36:03 UTC

Description Dominik Holler 2020-08-24 11:15:44 UTC 
Description of problem:
The default parameters of OVN are not suitable for scaling scenarios.

Steps to Reproduce:
1. Configure ovn using ovirt-engine-setup


Actual results:
The parameters are not configure to be suitable suitable for scaling scenarios.

Expected results:
The parameters are configure to be suitable suitable for scaling scenarios.
 

Additional info:
The relevant parameters are
 - inactivity_probe on ovn-central should be 60000
 - external_ids:ovn-remote-probe-interval on ovn-controller should be 60000
 - external_ids:ovn-openflow-probe-interval on ovn-controller should be 60
Comment 1 Dominik Holler 2020-09-08 09:52:46 UTC 
Hints for verification:
on Engine machine,
ovn-sbctl get connection . inactivity_probe
should return 60000

on hosts:
ovs-vsctl get open . external_ids:ovn-remote-probe-interval
-> 60000
ovs-vsctl get open . external_ids:ovn-openflow-probe-interval
-> 60
Comment 2 Dominik Holler 2020-09-29 17:40:01 UTC 
Fixed in ovirt-engine-ovirt-engine-4.4.3.5 and ovirt-provider-ovn-1.2.32-1.
Comment 4 Michael Burman 2020-10-05 07:51:38 UTC 
Verified on - rhvm-4.4.3.5-0.5.el8ev.noarch with:
ovirt-provider-ovn-1.2.32-1.el8ev.noarch
ovirt-provider-ovn-driver-1.2.32-1.el8ev.noarch

Engine:
 ovn-sbctl get connection . inactivity_probe
60000

Host(the modified script is currently only triggered during host install via ansible):
 ovs-vsctl get open . external_ids:ovn-remote-probe-interval
"60000"
ovs-vsctl get open . external_ids:ovn-openflow-probe-interval
"60"

Note: The OVN tasks are not triggered during re-install flow. They are only triggered on install flow. Will open a bug to handle the re-install flow, as the OVN tasks should be triggered as well when performing host re-install.
See BZ 1885132
Comment 11 errata-xmlrpc 2020-11-24 13:10:38 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (RHV Engine and Host Common Packages 4.4.z [ovirt-4.4.3]), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:5212
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