Bug 1124999

Created attachment 922712 [details]
rhsc-screenshot

Description of problem
======================

RHSC doesn't help gluster admin with software updates in any way.

Even though that Console Administration Guide notes the possibility of software
updates and hints the user how it may work a little, it doesn't work and the
guide is missing clear description of the software update workflow.

Version-Release number of selected component (if applicable)
============================================================

On the RHSC server:

~~~
# rpm -qa | grep rhsc
rhsc-webadmin-portal-3.0.0-0.12.el6rhs.noarch
rhsc-beaker-tasks-rhs-tests-rhsc-rhsc-setup-0.0.1-2.noarch
rhsc-setup-plugin-ovirt-engine-common-3.0.0-0.12.el6rhs.noarch
rhsc-branding-rhs-3.0.0-1.0.el6rhs.noarch
rhsc-3.0.0-0.12.el6rhs.noarch
rhsc-monitoring-uiplugin-0.1.1-1.el6rhs.noarch
rhsc-tools-3.0.0-0.12.el6rhs.noarch
rhsc-dbscripts-3.0.0-0.12.el6rhs.noarch
rhsc-doc-3.0.0-1.el6eng.noarch
rhsc-lib-3.0.0-0.12.el6rhs.noarch
rhsc-backend-3.0.0-0.12.el6rhs.noarch
rhsc-sdk-python-3.0.0.0-0.2.el6rhs.noarch
rhsc-setup-plugin-ovirt-engine-3.0.0-0.12.el6rhs.noarch
redhat-access-plugin-rhsc-3.0.0-1.el6rhs.noarch
rhsc-cli-3.0.0.0-0.2.el6rhs.noarch
rhsc-setup-base-3.0.0-0.12.el6rhs.noarch
rhsc-setup-plugins-3.0.0-0.2.el6rhs.noarch
rhsc-setup-3.0.0-0.12.el6rhs.noarch
rhsc-restapi-3.0.0-0.12.el6rhs.noarch
rhsc-log-collector-3.0.0-4.0.el6rhs.noarch
~~~

Console Administration Guide:
https://documentation-devel.engineering.redhat.com/site/documentation/en-US/Red_Hat_Storage/3/html-single/Console_Administration_Guide/index.html

How reproducible
================

100%

Steps to Reproduce
==================

Prereguisetes (initial state):

 * Cluster contains 4 RHS nodes which hosts a brick, all nodes are up
 * Gluster volume is enabled
 * RHSC is outside of trusted storage pool on a dedicated server
 * Updates for gluster are available in RHS channel on RHS nodes

Use case one
------------

1. Move one node into maintanence mode via RHSC
2. In RHSC web interface, find The General tab on the Details pane and clik on
   the "If you wish to upgrade or reinstall it click here" link.
3. Click ok in the "install host" window to start the update

Actual results of use case one
------------------------------

When a node is flagged for maintenance, the following message is shown in
The General tab on the Details pane:

~~~
Action Items
Host is in maintenance mode, you can Activate it by pressing the Activate
button. If you wish to upgrade or reinstall it click here.
~~~

(see screenshot)

But it does nothing: after a while, the node is show back as
*active* without performing the update. Yum log shows nothing.

Expected results of use case one
--------------------------------

The update is performed or the error informing the user why the update fails
is shown.

Use case two
------------

1. Move one node into maintanence mode
2. Log on the node via ssh and run 'yum update'

Actual results of use case two
------------------------------

Yum update fails because the maintenance mode doesn't trigger any change on the
node. This means that all gluster daemons are still running which prevents the
update to complete (this is an expected behaviour).

Expected results of use case two
--------------------------------

Not sure, but RHSC Admin Guide should include better description of the
maintenance mode than this:

> To perform certain actions, you may need to move hosts into maintenance mode.

Additional info
===============

Console Admin Guide[1] states that:

> Maintaining the cluster, including performing updates and monitoring usage
> and performance to keep the cluster responsive to changing needs and loads. 

From this, it's not clear if the text means software updates or updating the
cluster configuration.

But section "⁠4.5.1 Viewing General Host Informatio"states:

> The General tab on the Details pane provides information on individual hosts,
> including hardware and software versions, and available updates. 

Based on this statement, it's reasonable to assume that customers would think
that RHSC provides some way to run software updates.