Bug 987447

Summary:	App can't auto scale down when the HAproxy processes running on the head gear are terminated
Product:	OpenShift Online	Reporter:	Jianwei Hou <jhou>
Component:	Pod	Assignee:	Rajat Chopra <rchopra>
Status:	CLOSED DEFERRED	QA Contact:	libra bugs <libra-bugs>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	2.x
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Fixed In Version:		Doc Type:	Bug Fix
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Last Closed:	2013-07-23 19:55:31 UTC	Type:	Bug
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Jianwei Hou 2013-07-23 11:58:00 UTC

Description of problem:
Given a scalable application is scaled up to 2 gears, when the haproxy processes running on the head gear(first gear) is terminated(killed), the app can not successfully auto scale down after a certain time if there is no traffic to the app.

Version-Release number of selected component (if applicable):
On devenv_3540

How reproducible:
Always

Steps to Reproduce:
1. Create a scalable application, scale it up to 2 gears
2. ssh into the first gear(head gear) of the app, kill all haproxy processes
3. Do not access the app, wait for some time, then check that the app is auto scaled down

Actual results:
The app won't auto scale down

Expected results:
The app should auto scale down now that multiple load balancers are implemented.

Additional info:
The app will scale down if we don't terminate the haproxy processes on the head gear.

Comment 1 Jianwei Hou 2013-07-23 12:05:06 UTC

Also can not auto scale up when haproxy processes on head gear are killed.

Comment 2 Abhishek Gupta 2013-07-23 18:00:23 UTC

Multiple load balancers are not automatically implemented. The support is now there in the platform but the cartridge needs to be changed for that.

Based on the work being done in this release, we are now HA capable, just that HA is not provided out of the box.