[Xen-devel] [OSSTEST PATCH 0/8] Support diverse-CLASS hostflag

[Ian Jackson <ian.jackson@xxxxxxxxxxxxx>]

Here is a quick series for osstest which provides support for a new
kind of hostflag diverse-CLASS.  The host allocator will not consider
any host for such an allocation, which has been allocated for any
other such allocation (with the same CLASS) in the same flight.

This is going to be useful because we want to run several identical
XTF test jobs but run each one on a different host (since there is
probably little value on running two jobs on the same host in the same
flight).

Some of the state has to be threaded through the planner daemon.
Without the planner daemon patches, the projection will be wrong,
slightly messing up planning estimates etc., but the actual
allocations will, I think, be right.

It is fine to run the new host allocator against an old planner daemon
(even a production one), at least for testing.


These patches can be found in my personal xenbits repo
  xenbits.xen.org:/home/iwj/ext/osstest.git
  base.diverse-class.v1 .. wip.diverse-class.v1


These three

 [OSSTEST PATCH 1/8] Tcl: Use tclsh8.5
 [OSSTEST PATCH 2/8] ms-flights-summary: Remove spurious \ in keys \%{
 [OSSTEST PATCH 3/8] mg-schema-test-database: Direct logs to local

are preparatory patches which are probably going to be helpful if
someone wants to test the new planner (as I did, using the test
database facility).

Then there is the meat:

 [OSSTEST PATCH 4/8] ms-planner: Support ClientNotes
 [OSSTEST PATCH 5/8] ts-hosts-allocate-Executive: Replace some odd
 [OSSTEST PATCH 6/8] ts-hosts-allocate-Executive: pass $plan to
 [OSSTEST PATCH 7/8] ts-hosts-allocate-Executive: Support

And one helpful test script:

 [OSSTEST PATCH 8/8] DO NOT APPLY make-flight-diverse-test: test case


Thanks,
Ian.

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