[Pacemaker] ANNOUNCE: Pacemaker 0.7.0 (unstable) now available

[Andrew Beekhof]

Hi All,

This has taken a bit longer than I intended, but it's finally time for  
a new Pacemaker feature release.
There's lots of good stuff, the configuration should be a little  
easier to understand (yet more powerful), has lower performance  
overheads and some great improvements to the CLI tools - including the  
ability to test configuration changes in a sandbox before committing  
them to the cluster!

It also comes with a stack independent pingd and a STONITH subsystem  
(Dejan is maintaining that) which supports both OpenAIS and Heartbeat.

Packages for Pacemaker and it's immediate dependancies can be  
downloaded from:
   http://software.opensuse.org/download/server:/ha-clustering:/UNSTABLE

To avoid wasting resources, I'll be enabling distributions on an as- 
needed basis.
So if you can't find packages for your favorite one, just let me know  
and I'll enable it.


The source can be obtained from:
  http://hg.clusterlabs.org/pacemaker/unstable-0.7/archive/Pacemaker-0.7.0.tar.bz2

For a breakdown of the available packages and what parts are optional,  
please refer to
  http://clusterlabs.org/mw/Install#Package_List


As I hope is clear from the subject and included URLs, 0.7 is NOT  
STABLE.
That means:
- there will be new features added (or possibly removed)
- the behavior of features may change
- the configuration syntax may change
- some features may not be stable or complete

For more details:
   http://www.clusterlabs.org/mw/Releases

Also, it means that there is plenty of things that are not yet  
documented.
That process starts soon but I'm always happy to answer questions on  
anything that is unclear.

regards,
Andrew


Begin lazy paste from the changelog...

   * Update source tarball to revision: bde0c7db74fb tip
   * Statistics:
       Changesets:      439
       Diff:            676 files changed, 41310 insertions(+), 52071  
deletions(-)

   * Changes added since stable-0.6
   + High: A new tool for setting up and invoking CTS
   + High: Admin: All tools now use --node (-N) for specifying node  
unames
   + High: Admin: All tools now use --xml-file (-x) and --xml-text (- 
X) for specifying where to find XML blobs
   + High: cib: Cleanup the API - remove redundant input fields
   + High: cib: Implement CIB_shadow - a facility for making and  
testing changes before uploading them to the cluster
   + High: cib: Make registering per-op callbacks an API call and  
renamed (for clarity) the API call for requesting notifications
   + High: Core: Add a facility for automatically upgrading old  
configurations
   + High: Core: Adopt libxml2 as the XML processing library - all  
external clients need to be recompiled
   + High: Core: Allow sending TLS messages larger than the MTU
   + High: Core: Fix parsing of time-only ISO dates
   + High: Core: Smarter handling of XML values containing quotes
   + High: Core: XML memory corruption - catch, and handle, cases  
where we're overwriting an attribute value with itself
   + High: Core: The xml ID type doesn't allow UUIDs that start with a  
number
   + High: Core: Implement XPath based versions of query/delete/ 
replace/modify
   + High: Core: Remove some HA2.0.(3,4) compatability code
   + High: crmd: Overhaul the detection of nodes that are starting vs.  
failed
   + High: PE: Bug LF:1459 - Allow failures to expire
   + High: PE: Have the PE do non-persistent configuration upgrades  
before performing calculations
   + High: PE: Replace failure-stickiness with a simple 'migration- 
threshold'
   + High: TE: Simplify the design by folding the tengine process into  
the crmd
   + Medium: Admin: Bug LF:1438 - Allow the list of all/active  
resource operations to be queried by crm_resource
   + Medium: Admin: Bug LF:1708 - crm_resource should print a warning  
if an attribute is already set as a meta attribute
   + Medium: Admin: Bug LF:1883 - crm_mon should display fail-count  
and operation history
   + Medium: Admin: Bug LF:1883 - crm_mon should display operation  
timing data
   + Medium: Admin: Bug N:371785 - crm_resource -C doesn't also clean  
up fail-count attributes
   + Medium: Admin: crm_mon - include timing data for failed actions
   + Medium: ais: Read options from the environment since objdb isn't  
completely usable yet
   + Medium: cib: Add sections for op_defaults and rsc_defaults
   + Medium: cib: Better matching notification callbacks (for  
detecting duplicates and removal)
   + Medium: cib: Bug LF:1348 - Allow rules and attribute sets to be  
referenced for use in other objects
   + Medium: cib: BUG LF:1918 - By default, all cib calls now timeout  
after 30s
   + Medium: cib: Detect updates that decrease the version tuple
   + Medium: cib: Implement a client-side operation timeout - Requires  
LHA update
   + Medium: cib: Implement callbacks and async notifications for  
remote connections
   + Medium: cib: Make cib->cmds->update() an alias for modify at the  
API level (also implemented in cibadmin)
   + Medium: cib: Mark the CIB as disconnected if the IPC connection  
is terminated
   + Medium: cib: New call option 'cib_can_create' which can be passed  
to modify actions - allows the object to be created if it doesn't  
exist yet
   + Medium: cib: Reimplement get|set|delete attributes using XPath
   + Medium: cib: Remove some useless parts of the API
   + Medium: cib: Remove the 'attributes' scaffolding from the new  
format
   + Medium: cib: Implement the ability for clients to connect to  
remote servers
   + Medium: Core: Add support for validating xml against RelaxNG  
schemas
   + Medium: Core: Allow more than one item to be modified/deleted in  
XPath based operations
   + Medium: Core: Fix the sort_pairs function for creating sorted xml  
objects
   + Medium: Core: iso8601 - Implement subtract_duration and fix  
subtract_time
   + Medium: Core: Reduce the amount of xml copying occuring
   + Medium: Core: Support value='value+=N' XML updates (in addtion to  
value='value++')
   + Medium: crmd: Add support for lrm_ops->fail_rsc if its available
   + Medium: crmd: HB - watch link status for node leaving events
   + Medium: crmd: Bug LF:1924 - Improved handling of lrmd disconnects  
and shutdowns
   + Medium: crmd: Do not wait for actions with a start_delay over 5  
minutes. Confirm them immediately
   + Medium: PE: Bug LF:1328 - Don't fencing nodes in clusters without  
managed resources
   + Medium: PE: Bug LF:1461 - Give transient node attributes (in  
<status/>) preference over persistent ones (in <nodes/>)
   + Medium: PE: Bug LF:1884, Bug LF:1885 - Implement N:M ordering and  
colocation constraints
   + Medium: PE: Bug LF:1886 - Create a resource and operation  
'defaults' config section
   + Medium: PE: Bug LF:1892 - Allow recurring actions to be triggered  
at known times
   + Medium: PE: Bug LF:1926 - Probes should complete before stop  
actions are invoked
   + Medium: PE: Fix the standby when it's set as a transient attribute
   + Medium: PE: Implement a global 'stop-all-resources' option
   + Medium: PE: Implement cibpipe, a tool for performing/simulating  
config changes "offline"
   + Medium: PE: We don't allow colocation with specific clone instances
   + Medium: Tools: pingd - Implement a stack-independant version of  
pingd
   + Medium: xml: Ship an xslt for upgrading from 0.6 to 0.7