[jboss-as7-dev] Parallel initialization of more web applications in EAR

[Andrig Miller]

The docs team is putting an EAP 5.x to EAP 6.x migration guide together.  This should be included in that guide.  So, shoot the information over to the docs team, and it will get in the migration guide.

Andy

----- Original Message -----
> From: "Marek Novotny" <mnovotny at redhat.com>
> To: jboss-as7-dev at lists.jboss.org, "Sande Gilda" <sgilda at redhat.com>
> Sent: Tuesday, January 31, 2012 4:10:06 AM
> Subject: Re: [jboss-as7-dev] Parallel initialization of more web applications in EAR
> 
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> Ok, that is a reasonable explanation. I think we owe some Warning or
> Note in documentation at least in Migration part to our users ;-).
> 
> On 01/30/2012 11:27 PM, David M. Lloyd wrote:
> > I think it is safe to say that it is our general policy to adhere
> > to
> > spec behavior.  If an application is incorrect by spec, but happens
> > to
> > work with one app server, there can be no reasonable expectation
> > for it
> > to always work.  This is because without a clear and specific
> > additional
> > specification which explains the deviating behavior, there is no
> > way we
> > can make any guarantees about compatibility.
> > 
> > I don't foresee us, now or in the future, bending over backwards to
> > guarantee permanent compatibility of non-spec-compliant apps
> > (whether
> > the spec is the Java EE spec or any additional guarantees or
> > specifications we have implemented).
> > 
> > In other words... without this switch there is no guarantee
> > specified or
> > implied about initialization order.  Our policy will generally be
> > "whichever order is the fastest possible while respecting
> > dependencies,
> > disregarding all other factors".
> > 
> > On 01/30/2012 04:16 PM, Marek Novotny wrote:
> > Well, I would like a confirmation that this behavior is by design
> > and if
> > application requires specific order you have to do it by
> > configuration
> > in application.xml. So for every such old application you need to
> > do a
> > migration.
> > 
> > I haven't found any JBoss AS 7 documentation about it so it was my
> > question that I got it correctly ;-)
> > 
> > Dne 30.1.2012 23:10, Stuart Douglas napsal(a):
> >>>> I'm not really sure what you are asking here, as far as I have
> >>>> see you have answered your own question, just
> >>>> use<initialize-in-order>true</initialize-in-order>  to get
> >>>> non-parallel startup.
> >>>>
> >>>> Stuart
> >>>>
> >>>>
> >>>>
> >>>> On 31/01/2012, at 8:59 AM, Marek Novotny wrote:
> >>>>
> >>>> Hi AS developers,
> >>>>
> >>>> I am exploring the behavior of parallel initialization of web
> >>>> application in EAR. More concretely more than one web
> >>>> application in EAR.
> >>>> I know that spec doesn't define the initialization order of EAR
> >>>> submodules, but the parallel initialization of web application
> >>>> is new in
> >>>> AS7 and this breaks the backward compatibility for existing
> >>>> enterprise
> >>>> applications with multiple wars inside. New Java Enterprise
> >>>>  application
> >>>> 6 configuration
> >>>> setting<initialize-in-order>true</initialize-in-order>
> >>>> set up in application.xml can enable proper initialization flow,
> >>>> but
> >>>> without it is not possible to deploy.
> >>>>
> >>>> Could somebody shed light on parallel web applicaiton init?
> >>>> Original
> >>>> forum post https://community.jboss.org/message/635123
> >>>>
> >>>> And details could be seen also at
> >>>> https://issues.jboss.org/browse/JBSEAM-4856?focusedCommentId=12662448&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-12662448
> >>>>
> >>>> Cheers,
> >>>>
> >>>>> _______________________________________________
> >>>>> jboss-as7-dev mailing list
> >>>>> jboss-as7-dev at lists.jboss.org
> >>>>> https://lists.jboss.org/mailman/listinfo/jboss-as7-dev
> >>>>
> > 
> > --
> > Marek Novotny
> > --
> > JBoss Seam and WFK Productization Lead
> > 
> > Red Hat Czech s.r.o.
> > Purkynova 99
> > 612 45 Brno
> > 
> > Email: mnovotny at redhat.com
> > Office phone: +420 532 294 287, ext. 82-62 087
> > mobile: +420 608 509 230
> >> _______________________________________________
> >> jboss-as7-dev mailing list
> >> jboss-as7-dev at lists.jboss.org
> >> https://lists.jboss.org/mailman/listinfo/jboss-as7-dev
> > 
> > 
> 
> - --
> Marek Novotny
> - --
> WFK and Seam Product Lead
> 
> Red Hat Czech s.r.o.
> Purkynova 99
> 612 45 Brno
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