Bug 972949 – 'mod_proxy_balancer' algorithm 'bybusyness' does not balance the load after failed worker has recovered

Bug 972949 - 'mod_proxy_balancer' algorithm 'bybusyness' does not balance the load after failed worker has recovered

Summary:	'mod_proxy_balancer' algorithm 'bybusyness' does not balance the load after f...

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 6
Classification:	Red Hat
Component:	httpd (Show other bugs)
Sub Component:
Version:	6.4
Hardware:	All Linux

Priority	high Severity high
Target Milestone:	rc
Target Release:	---
Assigned To:	Web Stack Team
QA Contact:	Filip Holec
Docs Contact:

URL:
Whiteboard:
Keywords:	Patch

Depends On:
Blocks:	994246 1056252
	Show dependency tree / graph

Reported:	2013-06-10 17:26 EDT by Josep 'Pep' Turro Mauri
Modified:	2016-04-18 06:25 EDT (History)
CC List:	7 users (show)

See Also:
Fixed In Version:	httpd-2.2.15-31.el6
Doc Type:	Bug Fix
Doc Text:	Cause: When using mod_proxy_balancer with lbmethod_bybusyness, the "busy" counter was not decreased when the worker tried to send a request to non-working node. Consequence: Once the non-working node became working again, mod_proxy_balancer did not recover the worker, because the "busy" counter still signalled the worker is busy. Fix: The "busy" counter is decreased after failed requests. Result: mod_proxy_balancer uses the worker after the node recovery.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2014-10-14 04:07:29 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Apache Bugzilla	48735	None	None	None	Never

Groups: None (edit)

Description Josep 'Pep' Turro Mauri 2013-06-10 17:26:03 EDT

Description of problem:
Apache 'mod_proxy_balancer' algorithm 'bybusyness' does not balance the load after failed worker has recovered. This issue does not occur with the default method (byrequests).

Version-Release number of selected component (if applicable):
httpd-2.2.15-28.el6_4

How reproducible:
Always

Steps to Reproduce:
see bug 601132 or upstream bug report

Additional info:
This was reported in EWS in bug 899273

Comment 11 errata-xmlrpc 2014-10-14 04:07:29 EDT

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, and where to find the updated
files, follow the link below.

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

http://rhn.redhat.com/errata/RHBA-2014-1386.html

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