Bug 6631 – inconsistency with resource reservations

Bug 6631 - inconsistency with resource reservations

Summary:

inconsistency with resource reservations

Status:	RESOLVED FIXED

Product:	Nimbus
Component:	Workspace service
Version:	TP2.2
Platform:	PC Linux

Importance:	P3 normal
Target Milestone:	TP2.2.1
Assigned To:	Tim Freeman

URL:
Keywords:

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2009-01-27 15:02 by Tim Freeman
Modified:	2009-01-27 15:08 (History)

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Description From Tim Freeman 2009-01-27 15:02:25

It is possible to get into an inconsistent state with the resource
reservations.

Conditions:

1. Cluster request is granted all its network requests
2. Ensemble-done called (actually request cluster)
3. VMM slots are partially granted but there are not enough to satisfy the
whole cluster.
4. Backout is invoked

The logical error is in the code for step #4, in
DefaultSlotManagement#reserveCoscheduledSpace()

This was typically never exercised in the past because most deployments have
less or equal network addresses than VMMs (i.e., requests usually don't get by
step #1 if they want public addresses).

------- Comment #1 From Tim Freeman 2009-01-27 15:08:43 -------

committed fix