RHBA-2015:1454 - Bug Fix Advisory

Topic

Updated luci packages that fix several bugs and add two enhancements are now
available for Red Hat Enterprise Linux 6.

Description

The luci package provides a web-based high-availability cluster configuration
application built on the TurboGears 2 framework.

This update fixes the following bugs:

• When editing the cluster configuration, if an error occurred while attempting

to set the new configuration on one or more nodes, luci still attempted to
activate the new configuration version. As a consequence, the cluster could fall
out of sync. With this update, luci no longer activates a new cluster
configuration in the described situation. (BZ#1136456)

• A new attribute, "cmd_prompt" has been added to the fence_apc fence agent.

Consequently, users could not view and change this new attribute. The fence_apc
form has been updated to include support for viewing and setting "cmd_prompt.
(BZ#1010400)

• The "stop" action semantics differ from the "disable" action semantics in the

rgmanager utility. Previously, after clicking the "stop" button in the GUI, luci
always issued a command that caused the "disable" action to be issued in
rgmanager. As a consequence, luci could not issue a command that would cause the
rgmanager "stop" action to be issued for a service. This update adds a "stop"
action in addition to the "disable" action that is accessible only in expert
mode. (BZ#1111249)

• After selecting "add resource" for a service group, a cancel button was

missing from the dialog, which created a dead-end in the GUI. As a consequence,
users had to reload the page if they clicked the button accidentally or wanted
to change their choice after clicking it. This update adds a cancel button to
the "add resource" dialog for service groups. (BZ#886526)

• Previously, luci did not allow VM resources to have children resources, and

after adding a VM to a service group, the "add resource" button was removed so
that no further resources could be added. However, the GUI could handle
configurations that contained resources with children. As a consequence, even
though luci supported the aforementioned configurations, the "add resource"
button was removed after adding a VM resource. With this update, the "add
resource" button is no longer removed when adding a VM resource to a service
group. (BZ#1100831)

• The luci tool allowed setting the "shutdown_wait" attribute for postgres-8

resources, but the resource agent ignored the attribute. Consequently, it was
not clear that "shutdown_wait" no longer had any effect. This update adds a text
for clusters running Red Hat Enterprise Linux 6.2 and later to indicate that the
"shutdown_wait" parameter is ignored. (BZ#917781)

• Starting with Red Hat Enterprise Linux 6.7, fence_virt is fully supported.

Previously, fence_virt was included as a Technology Preview, which was indicated
by a label in the GUI. Also, certain labels and text regarding fence_xvm and
fence_virt were inconsistent. With this update, the GUI text reflects the
current support status for fence_virt and the the text is consistent.
(BZ#1204910)

• When making changes to certain resources, service groups, and fence agents

while not in expert mode, attributes that could be set with luci only in expert
mode could be lost. As a consequence, some configuration parameters could be
erroneously removed. With this update, luci no longer removes expert-mode-only
attributes. (BZ#1112297)

In addition, this update adds the following enhancements:

• Support for configuring the fence_emerson and fence_mpath fence devices has

been added to luci. (BZ#1210683)

• With this update, users can collapse and expand parts of service groups when

viewing or editing service groups in luci, which improves the usability, as the
configuration screen could previously become too cluttered. (BZ#919223)

Users of luci are advised to upgrade to these updated packages, which fix these
bugs and add these enhancements.

Solution

Before applying this update, make sure all previously released errata relevant
to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux High Availability for x86_64 6 x86_64
• Red Hat Enterprise Linux High Availability for x86_64 6 i386
• Red Hat Enterprise Linux Resilient Storage for x86_64 6 x86_64
• Red Hat Enterprise Linux Resilient Storage for x86_64 6 i386
• Red Hat Enterprise Linux High Availability (for RHEL Server) from RHUI 6 x86_64
• Red Hat Enterprise Linux High Availability (for RHEL Server) from RHUI 6 i386
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) from RHUI 6 x86_64
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) from RHUI 6 i386

Fixes

• BZ - 886526 - UI: "Cancel" button in Service Groups -> add -> Add Resource dialog
• BZ - 917761 - miss_count_const parameter under totem section/network tab in expert mode is missing in luci (available since 6.3)
• BZ - 917781 - luci should make it explicit that "shutdown_wait" is being ignored at postgres-8 since 6.2
• BZ - 1010400 - FA: apc: new cmd_prompt parameter
• BZ - 1100831 - Add Resource button disappears after selecting a VM resource
• BZ - 1112297 - Extra options may get removed from resources (fencing?) after expert mode is disabled
• BZ - 1136456 - ricci communication failure during conf update push causes cman version sync issue
• BZ - 1204910 - Support for fence_{virt,xvm} agents does not fully reflect current status
• BZ - 1210683 - Sync luci with recent changes in the schema for RHEL 6.7

CVEs

(none)

References

(none)