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Re: can I avoid a service to block as7 startup ?
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created by <a href="http://community.jboss.org/people/jason.greene">Jason Greene</a> in <i>JBoss AS7 Development</i> - <a href="http://community.jboss.org/message/631634#631634">View the full discussion</a>
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<div class="jive-rendered-content"><blockquote class="jive-quote"><p>Dan Sirbu wrote:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I got that.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>My problem is that when the ME.start() is called by the MSC - the SubsystemState did not build yet the module list: M1, M2 !</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>And thus when populating the model, SubsystemState will call addModule which in turn will do the WRONG stuff ! That is clear.</p></blockquote><p>OK, but my point is that a call to asynchronous from another thread is always going to break. There is a race condition between the thread starting the service finishing (and MSC thinking it's done) and the other thread telling it the service is not done. The only way it makes sense to toggle that async method is to do it in the same thread that MSC is using to execute start() but before start() completes.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><blockquote class="jive-quote"><p>Dan Sirbu wrote:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Any idea what I doing wrong that the ME.start() gets called before the SubsystemState builds the list of modules ? I do not see why that happens.</p></blockquote><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Only a service dependecy will prevent a service from starting, so ME has to depend on some other service that represents the state it needs.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Maybe it would help to take a step back. Could you describe what you are ultimately trying to build here? It sounds like you are creating some new kind of module system?</p></div>
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