Bug 1956955

Summary: Services sync causes too many ovn load balancer deletes
Product: OpenShift Container Platform Reporter: Mohit Sheth <msheth>
Component: NetworkingAssignee: Tim Rozet <trozet>
Networking sub component: ovn-kubernetes QA Contact: Kedar Kulkarni <kkulkarn>
Status: CLOSED ERRATA Docs Contact:
Severity: high    
Priority: high CC: jlema, kkulkarn, mifiedle, sidsharm, trozet
Version: 4.8Keywords: Performance
Target Milestone: ---   
Target Release: 4.9.0   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: perfscale-ovn
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
: 1986573 (view as bug list) Environment:
Last Closed: 2021-10-18 17:30:51 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:
Bug Depends On:    
Bug Blocks: 1986573    

Description Mohit Sheth 2021-05-04 18:17:37 UTC
Description of problem:
While running cluster-density at 250 node scale with 2000 projects, we see that there are 46000 nbctl commands and out of those 29000 are remove load_balancer.*vips

Version-Release number of selected component (if applicable):
ovs-vswitchd (Open vSwitch) 2.15.0

How reproducible:

Steps to Reproduce:
1. Run cluster-density 2k at 250 node scale

Actual results:
Lots of remove load_balancer deletes

Expected results:
Lesser deletes

Additional info:
ovnkube-master logs http://dell-r510-01.perf.lab.eng.rdu2.redhat.com/msheth/ovnkube-master-04-may/ovnkube-master-mkzfk.log

Comment 16 Kedar Kulkarni 2021-07-14 20:26:16 UTC

I ran Cluster Density 250 workers for 2000 iterations and grepped through the log, the remove load_balancer call count was 15322, vs 29000 as reported originally. There were no errors there about bash too many args. I used the following build "4.9.0-0.nightly-2021-07-12-203753" . Based on this info, I am closing this bz as verified. 


Comment 19 errata-xmlrpc 2021-10-18 17:30:51 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 (Moderate: OpenShift Container Platform 4.9.0 bug fix and security update), and where to find the updated
files, follow the link below.

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