[ClusterLabs] Pacemaker 1.1.18 deprecation warnings

[Ken Gaillot]

On Tue, 2017-09-19 at 10:18 +0300, Klechomir wrote:
> Hi Ken,
> Any plans that there will be "lost monitoring request" handling (an
> added 
> syntax) in 2.0?
> 
> Regards,
> Klecho

2.0 will be about removing legacy syntax rather than adding new
features. The X.Y.Z version numbering policy will become:

X (major): changes that prevent at least some rolling upgrades

Y (minor): changes that don't break any rolling upgrades but require
closer user attention (changes in configuration defaults, tool
behavior, and/or public C API)

Z (minor-minor): backward-compatible changes (features and bug fixes)

So, we can add new (backward-compatible) features in any release.

Specifically to your question, what do you mean by "lost monitoring
request"? If you mean the ability to ignore a certain number of failed
monitors before recovering, there are plans for that, but it will be
later than 2.0.

> On 18.9.2017 12:48:38 Ken Gaillot wrote:
> > As discussed at the recent ClusterLabs Summit, I plan to start the
> > release cycle for Pacemaker 1.1.18 soon.
> > 
> > There will be the usual bug fixes and a few small new features, but
> the
> > main goal will be to provide a final 1.1 release that Pacemaker 2.0
> can
> > branch from.
> > 
> > As such, 1.1.18 will start to log deprecation warnings for syntax
> that
> > is planned to be removed in 2.0. So, we need to decide fairly
> quickly
> > what we intend to remove.
> > 
> > Below is what I'm proposing. If anyone feels strongly about keeping
> > support for any of these, speak now or forever hold your peace!
> > 
> > * support for legacy cluster stacks (heartbeat, corosync 1 + CMAN,
> and
> > corosync 1 + pacemaker plugin). Pacemaker 2.0 will initially
> support
> > only corosync 2, though future support is planned for the new knet
> > stack.
> > 
> > * compile-time option to directly support SNMP and ESMTP in crm_mon
> > (i.e. the --snmp-* and --mail-* options) (alerts are the current
> > syntax)
> > 
> > * pcmk_*_cmd stonith attributes (pcmk_*_action is the current
> syntax)
> > 
> > * pcmk_poweroff_action (pcmk_off_action is the current syntax)
> > 
> > * "requires" operation meta-attribute ("requires" resource meta-
> > attribute is the current syntax)
> > 
> > * undocumented "resource isolation" feature (bundles are current
> > syntax)
> > 
> > * undocumented LRMD_MAX_CHILDREN environment variable
> > (PCMK_node_action_limit is the current syntax)
> > 
> > * cluster properties that have been obsoleted by the rsc_defaults
> and
> > op_defaults sections
> > ** stonith-enabled or stonith_enabled (now "requires" in
> rsc_defaults)
> > ** default-resource-stickiness, default_resource_stickiness (now
> > "resource-stickiness" in rsc_defaults)
> > ** is-managed-default or is_managed_default (now "is-managed" in
> > rsc_defaults)
> > ** default-action-timeout or default_action_timeout (now "timeout"
> in
> > op_defaults)
> > 
> > * undocumented old names of cluster properties
> > ** no_quorum_policy (now no-quorum-policy)
> > ** symmetric_cluster (now symmetric-cluster)
> > ** stonith_action (now stonith-action)
> > ** startup_fencing (now startup-fencing)
> > ** transition_idle_timeout (now cluster-delay)
> > ** default_action_timeout (now default-action-timeout)
> > ** stop_orphan_resources (now stop-orphan-resources)
> > ** stop_orphan_actions (now stop-orphan-actions)
> > ** remote_after_stop (now remove-after-stop)
> > ** dc_deadtime (now dc-deadtime)
> > ** cluster_recheck_interval (now cluster-recheck-interval)
> > ** election_timeout (now election-timeout)
> > ** shutdown_escalation (now shutdown-escalation)
> > 
> > * undocumented old names of resource meta-attributes
> > ** resource-failure-stickiness, resource_failure_stickiness,
> default-
> > resource-failure-stickiness, and
> > default_resource_failure_stickiness (now migration-threshold)
> > 
> > * undocumented and ignored -r option to lrmd
> > 
> > * compile-time option to use undocumented "notification-agent" and
> > "notification-recipient" cluster properties instead of current
> "alerts"
> > syntax
> > 
> > * compatibility with CIB schemas below 1.0, and schema 1.1 (should
> not
> > affect anyone who created their configuration using Pacemaker 1.0.0
> or
> > later)
-- 
Ken Gaillot <kgaillot at redhat.com>