[wildfly-dev] Changing one subsystem from another

[ssilvert at redhat.com]

OK.  Thanks guys.  I'll have to take a very different approach to my
problem then.  Guess I've got the weekend to think it over.

On 11/15/2013 5:34 PM, Brian Stansberry wrote:
> On 11/15/13 1:29 PM, David M. Lloyd wrote:
>> On 11/15/2013 01:22 PM, ssilvert at redhat.com wrote:
>>> I'm inside a DeploymentProcessor and I want to execute a management
>>> operation on another subsystem.  How can I get a
>>> ModelControllerClient in order to do that?
>> You shouldn't do that.  A deployment operation should never change the
>> persistent configuration.  Non-persistent configuration/resources should
>> be modifiable in other subsystem-dependent ways.
>>
> DUPs also run inside a service's start method (the deployment phase 
> service.) You can't invoke a management op that modifies anything from 
> inside a service start for a service that in turn was started as part of 
> a management op. At least not if the DUP is going to block waiting for 
> that op to complete.  The 2nd op won't execute because the first op 
> holds an exclusive lock; the first op won't release that lock because it 
> is waiting for the service to complete start.
>