Bug 462717

Summary:	IPVS wrr scheduler bug
Product:	Red Hat Enterprise Linux 4	Reporter:	Jack Neely <jjneely>
Component:	kernel	Assignee:	Vitaly Mayatskikh <vmayatsk>
Status:	CLOSED ERRATA	QA Contact:	Network QE <network-qe>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	4.7	CC:	davem, dtian, nhorman, qcai, tgraf, vgoyal
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-02-16 16:03:18 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Jack Neely 2008-09-18 14:40:50 UTC

Description of problem:
The RHEL 4 kernels all seem to suffer from the WRR scheduler bug as documented by the third bullet point here:

   http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.ipvsadm.html

Basically, there are specific situations where using the WRR IPVS scheduler will refuse to route packets to a configured and valid real server.

There are various patches following this thread:

   http://marc.theaimsgroup.com/?l=linux-virtual-server&m=110749794000222&w=2

Version-Release number of selected component (if applicable):
Verified this bug exists with release 78.0.1.EL.

How reproducible:
Documented in the first link above in the LVS Howto.

Comment 1 RHEL Program Management 2010-10-12 21:10:24 UTC

This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.

Comment 2 Vivek Goyal 2010-10-14 14:39:16 UTC

Committed in 89.43.EL . RPMS are available at http://people.redhat.com/vgoyal/rhel4/

Comment 7 errata-xmlrpc 2011-02-16 16:03:18 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2011-0263.html