Unfencing is done in resource cleanup only if relevant parameters changed
Previously, in a cluster that included a fence device that supports unfencing, such as
fence_mpath, a general resource cleanup or a cleanup of any stonith resource would always result in unfencing, including a restart of all resources. Now, unfencing is only done if the parameters to the device that supports unfencing changed. (BZ#1427643)
pacemaker rebased to version 1.1.18
The pacemaker packages have been upgraded to upstream version 1.1.18, which includes the following behavioral difference:
Pacemaker now probes virtual machines launched with a Pacemaker Remote connection ("guest nodes"), just as it probes any node that joins the cluster. This allows Pacemaker to catch services that were mistakenly started at boot or by hand, and to refresh its knowledge after a resource clean-up. As such, it is important in order to be able to avoid having a service running in conflicting locations. However, these probes must be executed and the results processed before any resources can be started on the guest node. This can result in a noticeable increase in start-up time. Also, if users were previously relying on the probes not being done, the probes may fail (for example, if the relevant software isn't installed on the guest).
These effects can be avoided in cases where it is not possible for certain resources to run on the guest nodes. Usually there will already be -INFINITY location constraints enforcing that. Users can add
to the location constraint options to tell pacemaker not to probe that resource on the guest nodes. (This should not be done for any resource that can run on the guest.) (BZ#1513199
clufter rebased to version 0.77.1
The clufter packages have been upgraded to upstream version 0.77.1, which provides a number of bug fixes, new features, and user experience enhancements over the previous version. Among the notable updates are the following:
pcs commands, the
clufter tool now supports a preferred ability to generate
pcs commands that will update only the modifications made to a configuration by means of a differential update rather than a pushing a wholesale update of the entire configuration. Likewise when applicable, the
clufter tool now supports instructing the
pcs tool to configure user permissions (ACLs). For this to work across the instances of various major versions of the document schemas,
clufter gained the notion of internal on-demand format upgrades, mirroring the internal mechanics of
clufter is now capable of configuring the
In any script-like output sequence such as that produced with the
pcs2pcscmd families of
clufter commands, the intended shell interpreter is now emitted in a valid form, so that the respective commented line can be honored by the operating system.
clufter to translate an existing configuration with the
pcs2pcscmd-needle command in the case where the
corosync.conf equivalent omits the
cluster_name option (which is not the case with standard pcs-initiated configurations), the contained
pcs cluster setup invocation no longer causes cluster misconfiguration with the name of the first given node interpreted as the required cluster name specification. The same invocation will now include the
--encryption 0|1 switch when available, in order to reflect the original configuration accurately.
clufter commands having a sequence of
pcs commands at the output, meaning they are passed through a post-processing to improve readability (unless disabled with
--noop=cmd-wrap), no longer have the issue that some characters with special meaning in shell language were not being quoted, which changed their interpretation.
clufter tool now also covers some additional recently added means of configuration as facilitated with
pcs (heuristics for a quorum device, meta attributes for top-level
bundle resource units) when producing the sequence of configuring
pcs commands to reflect existing configurations when applicable. On the
corosync configuration interfacing side, the format parser no longer misinterprets commented-out lines with spaces or tabulators in front of the respective delimiter, and support for some mechanically introduced options was reconsidered under closer examination of what
pcs actually handles.