Can't we just deprecate the use of init() right now?  It would make all of
our lives much easier and the RabbitHole alpha can go forward with a working
clustering engine.  In the meantime, Sacha and I can work with the
JavaGroups guys to eliminate the need for 2 phase initialization.

Bill

> -----Original Message-----
> From: Andreas Schaefer [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, November 13, 2001 12:47 PM
> To: David Jencks; Bill Burke
> Cc: Sacha Labourey; [EMAIL PROTECTED]
> Subject: Re: [JBoss-dev] RE: Deployment exception on Clustering
>
>
> Hi Geeks
>
> I don't think the mbean-ref list will WORK. As you said the
> ClusterPartition
> will be created, attributes are set BUT it won't be started.
>
> AFAIK ClusterPartition needs to initialize JChannel before the other HA-
> service can start, doesn't it? Yeah, but then this initialization is NOT
> STARTED
> with the "mbean-ref-list"! So, how to you want to initialize the
> JChannel on
> ClusterPartition before the other HA-services are started ? REMEBER that
> there are attributes which could be set after the creation of the MBean.
>
> Andy
>
> > > >   <mbean code="org.jboss.ha.framework.server.ClusterPartition"
> > > > name="JBOSS-SYSTEM:service=DefaultPartition">
> > > >   </mbean>
> > > >
> > > >    <mbean
> code="org.jboss.ha.hasessionstate.server.HASessionStateService"
> > > > name="JBOSS-SYSTEM:service=HASessionState">
> > > >       <mbean-ref
> name="ClusterPartition">JBOSS-SYSTEM:service=DefaultPartition</mbean-ref>
> > > >   </mbean>
> > > >
> > > >
> > > >   <mbean code="org.jboss.ha.jndi.HANamingService"
> > > > name="JBOSS-SYSTEM:service=HAJNDI">
> > > >       <mbean-ref
> name="ClusterPartition">JBOSS-SYSTEM:service=DefaultPartition</mbean-ref>
> > > >   </mbean>
> > > >
> > > >
> > > > rather than like this:
> > > >
> > > >
> > > >   <mbean code="org.jboss.ha.framework.server.ClusterPartition"
> > > > name="JBOSS-SYSTEM:service=DefaultPartition">
> > > >     <mbean-ref-list name="SynchronizedMBeans">
> > > >
> > > > <mbean-ref-list-element>JBOSS-SYSTEM:service=HASessionState</mbean
> > > > -ref-list-element>
> > > >
> > > > <mbean-ref-list-element>JBOSS-SYSTEM:service=HAJNDI</mbean-ref-lis
> > > > t-element>
> > > >     </mbean-ref-list>
> > > >   </mbean>
> > > >
> > > >    <mbean
> code="org.jboss.ha.hasessionstate.server.HASessionStateService"
> > > > name="JBOSS-SYSTEM:service=HASessionState">
> > > >   </mbean>
> > > >
> > > >
> > > >   <mbean code="org.jboss.ha.jndi.HANamingService"
> > > > name="JBOSS-SYSTEM:service=HAJNDI">
> > > >   </mbean>
>
> > BTW, with the mbean-ref-list
> > > example can you please describe to me how calls are ordered?  What
> MBeans
> > > get created first?  What order does start() get called?
> >
> > The mbeans are created and configured in what ever order they
> happen to be
> > encountered by the autodeployer/ServiceDeployer/code directly calling
> > ServiceDeployer etc.
> >
> > ServiceConfigurator returns a list of objectnames referenced in
> mbean-ref
> > and mbean-ref-list/mbean-ref-list-element elements. The
> ServiceController
> > finds out if all of these have been started: if so it registers (with
> > itself) and starts the mbean.  If not, it waits, and every time an mbean
> is
> > started checks to see if all dependencies are satisfied for
> waiting beans.
> > Once all the dependencies are satisfied for a waiting mbean, it is
> started.
> >  The reverse happens when you stop or undeploy an mbean.
> >
> > To look at the examples, in the first format the ClusterPartition can be
> > started immediately, since it has no mbean-refs.  No matter when the
> > HASessionState and HAJNDI mbeans are encountered (i.e. before the
> > ClusterPartition mbean), they will not be started until after the
> > ClusterPartition mbean is started.
> >
> > In the second format, the ClusterPartition mbean will be created and
> > configured, but not started until after the HASessionState and HAJNDI
> > mbeans are started.
>
>



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