Github user aledsage commented on a diff in the pull request:

    https://github.com/apache/brooklyn-server/pull/211#discussion_r70590868
  
    --- Diff: 
software/base/src/main/java/org/apache/brooklyn/entity/software/base/lifecycle/MachineLifecycleEffectorTasks.java
 ---
    @@ -709,7 +712,26 @@ protected void doStop(ConfigBag parameters, 
Callable<StopMachineDetails<Integer>
     
             DynamicTasks.queue("pre-stop", new PreStopCustomTask());
     
    +        // BROOKLYN-263:
    +        // With this change the stop effector will wait for Location to 
provision so it can stop it.
    +        // It will not retry if non-jclouds location is used in the entity.
             Maybe<MachineLocation> machine = 
Machines.findUniqueMachineLocation(entity().getLocations());
    +        if 
(Boolean.TRUE.equals(entity().sensors().get(Attributes.JCLOUDS_PROVISIONING_STARTED))
    +                && machine.isAbsent()) {
    +            
entity().sensors().set(Attributes.JCLOUDS_PROVISIONING_STARTED, null);
    --- End diff --
    
    This name feels misleading. It's sort-of more about whether the 
provisioning is running, rather than started. I'd be inclined to use an enum to 
indicate the exact state. The value could be one of PROVISIONING, ABORTING, or 
null.
    
    See later comment (not added yet!) about telling the jclouds provisioning 
to not do anything else (e.g. currently it will wait for ssh'able etc, which we 
can abort earlier).


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