Bug 1393141 - [Docs] [RFE] An overview of how to configure high availability for OCP 3.3 must be added
Summary: [Docs] [RFE] An overview of how to configure high availability for OCP 3.3 mu...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Quickstart Cloud Installer
Classification: Red Hat
Component: doc-Installation_Guide
Version: 1.1
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
: 1.1
Assignee: Julie
QA Contact: Thom Carlin
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-11-09 00:58 UTC by Andrew Dahms
Modified: 2017-02-28 01:40 UTC (History)
9 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2017-02-28 01:40:54 UTC
Target Upstream Version:


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Links
System ID Private Priority Status Summary Last Updated
Red Hat Bugzilla 1393142 0 medium CLOSED [Docs] [RFE] An OCP HA diagram must be added 2021-02-22 00:41:40 UTC
Red Hat Product Errata RHEA-2017:0335 0 normal SHIPPED_LIVE Red Hat Quickstart Installer 1.1 2017-02-28 06:36:13 UTC

Internal Links: 1393142

Description Andrew Dahms 2016-11-09 00:58:06 UTC
QCI 1.1 adds the ability to configure OCP 3.3 deployments with high availability, introducing several small changes to the user interface and deployment workflow. These changes must be documented in the installation guide.

Comment 2 Thom Carlin 2017-01-24 20:19:25 UTC
FailedQA: Returning to ASSIGNED

Although the documentation in the latest spin of the documentation is correct, Please add a note about the interaction between worker nodes and infrastructure nodes (i.e. that infrastructure nodes can be used as worker nodes to provide HA with "no single point of failure" if only 1 worker node is deployed as alluded to in the OCP docs).

Comment 3 Tahlia Richardson 2017-01-25 06:55:21 UTC
I'm not sure I understand this. Can you please clarify for me?

* Do you have to configure the infrastructure nodes in any special way for them to be used as worker nodes? 
* Doesn't that contradict the description of infrastructure nodes in the OCP HA table, which says "Only the default configuration is supported"? Or is that referring to something else? 
* Wouldn't it be better to recommend at least two worker nodes for HA?

Comment 4 Thom Carlin 2017-01-25 12:14:47 UTC
Your suggestions seem reasonable to me, Routing to dgao for a authoritative response.

Comment 5 dgao 2017-02-01 18:21:46 UTC
The infrastructure node can actually be used as worker nodes as well. There are no special configuration that's needed to enable them as worker nodes. 

So technically with the default configuration, there will be 3 worker nodes available. One dedicated node + 2 infrastructure nodes that double down as worker nodes.

Comment 7 Thom Carlin 2017-02-06 20:16:48 UTC
Additional information is in latest doc spin,  Works for me, moving to VERIFIED

Comment 9 errata-xmlrpc 2017-02-28 01:40:54 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, 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/RHEA-2017:0335


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