RHBA-2015:1446 - Bug Fix Advisory

Topic

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

Description

The pcs packages provide a command-line configuration system for the Pacemaker
and Corosync utilities.

The pcs packages have been upgraded to upstream version 0.9.139, which provides
a number of bug fixes and enhancements over the previous version. (BZ#1185738)

This update also fixes the following bugs:

• After the user added a duplicate resource operation, Pacemaker configuration

became invalid. With this update, pcs does not add the operation and instead
informs the user that the same operation already exists. (BZ#1031141)

• The user could not manage Red Hat Enterprise Linux 6 clusters using the pcsd

web UI running on a Red Hat Enterprise Linux 7 host. The bug has been fixed, and
it is now possible to add or create clusters in this situation. Note that the
pcsd web UI is still not available on Red Hat Enterprise Linux 6 hosts.
(BZ#1160359)

• After the user displayed the list of STONITH devices or resources, their

locations were not included. Now, the list also contains the locations of the
devices and resources. (BZ#1174244)

• The "pcs resource describe" command displayed the resource agent description

on one line, which made it difficult to read. Now, pcs displays the description
as it is defined in the agent. (BZ#1174793)

• After displaying information about a fence agent, pcs showed the description

of the options but not the description of the fence agent itself. Now, the fence
agent description is displayed as well in this situation. (BZ#1174798)

• Previously, pcs stopped cluster nodes sequentially one at a time, which caused

the cluster resources to be moved from one node to another pointlessly.
Consequently, the stop operation took a long time to finish. Also, losing the
quorum during the process could result in node fencing. With this update, pcs
stops the nodes simultaneously, preventing the resources from being moved around
pointlessly and speeding up the stop operation. In addition, pcs prints a
warning if stopping the nodes would cause the cluster to lose the quorum. To
stop the nodes in this situation, the user is required to add the "--force"
option. (BZ#1174801, BZ#1184763)

• The "pcs status --full" command did not output the node attributes and

migration summary. Similarly, the "pcs config" command did not display the
resource and operation defaults. Both commands have been modified to display
this information. (BZ#1184922, BZ#1187488)

• After the user attempted to ban or clear a clone resource, pcs displayed an

error message stating the resource did not exist. With this update, pcs supports
banning and clearing clone resources. The "pcs resource ban" command creates a
constraint on a cloned resource, and the "pcs resource clear" command removes
that constraint. (BZ#1190167)

• When using the User Datagram Protocol unicast (UDPU) transport, the cluster is

required to be restarted in order for the node to be added or removed properly.
Previously, pcs did not inform the user about this requirement. Now, pcs warns
the user to restart the cluster. (BZ#1191898)

• After the user removed a node from a cluster, the cluster could fence the

removed node. This update modifies pcs to reload the cluster.conf file after
adding or removing a node, thus fixing the bug. (BZ#1193433)

In addition, this update adds the following enhancement:

• This update adds support for configuring the Redundant Ring Protocol (RRP) and

setting Corosync options. The user can now configure a cluster with RRP and set
up corosync options. (BZ#1121769)

• The clufter package is now installed as a pcs dependency. With clufter

installed, pcs is able to import CMAN configuration from the cluster.conf file
and convert it into Pacemaker configuration. (BZ#1171312)

Users of pcs 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 - 1031141 - pcs has strange/inconsistent behaviour and operation namings
• BZ - 1121769 - Need support for cluster options, RRP & quorum options in pcs for RHEL6
• BZ - 1126835 - cibadmin --scope resources: Update does not conform to the configured schema
• BZ - 1160359 - Add ability for 6.7 pcsd to be managed by 7.1 GUI (No GUI support in 6.7)
• BZ - 1168982 - pcsd gui is not able to remove constraints and standby/unstandby nodes of remote cluster
• BZ - 1168986 - pcsd gui does not show any info when a globally-unique clone resource is present in a cluster
• BZ - 1171312 - [RFE] pcs should be able to import cluster.conf and convert it into a pacemaker configuration/sequence of PCS commands
• BZ - 1174244 - pcs stonith show / pcs stonith should show the node a stonith resource is running on
• BZ - 1174793 - Formatting of longdesc metadata of resource agent is destroyed when using "pcs resource describe"
• BZ - 1174798 - pcs stonith describe only lists parameters of fence agent, but not description
• BZ - 1174801 - Parallelize cluster start and cluster stop
• BZ - 1184763 - pcs cluster stop behavior is not optimal and can lead to fencing nodes
• BZ - 1185738 - PCS Rebase bug for 6.7
• BZ - 1187488 - Pacemaker resource defaults should show up in 'pcs config' output
• BZ - 1190167 - 'pcs resource clear' does not work on cloned group
• BZ - 1190168 - [RFE] 'pcs cluster cib': implement --scope as cibadmin does
• BZ - 1191898 - pcs should warn when creating a CMAN cluster with UDPU transport

CVEs

(none)

References

(none)