Just realized I never said thanks, so... Thanks for the info. I hope it
persuades them. :)
-----
Jason Lee, SCJP
Programmer/Analyst
http://www.iec-okc.com
> -----Original Message-----
> From: Shreedhar.Ganapathy_at_Sun.COM
> [mailto:Shreedhar.Ganapathy_at_Sun.COM]
> Sent: Tuesday, January 09, 2007 2:58 PM
> To: users_at_glassfish.dev.java.net
> Subject: Re: Glassfish in a shared hosting environment
>
> Hi Jason
> A glassfish domain is a distinct administrative domain and
> each domain creates one server instance (using v1 or v1 ur1
> or v1 ur1 p1) which is a distinct process from any other
> glassfish domain's server. In v2 one can create multiple
> instances within each domain and also cluster these instances.
>
> As such two different domains are just that and crash of one domain's
> instance(s) should not bring down another domain unless the
> machine on which these are running has a resource issue or
> limitations.
>
> In the case of a web hoster using v2, standalone instances
> could be given to each user if shared hosting through virtual
> servers is not desired. In the case of v1 (ur1 and ur1 p1),
> creating individual domains with different ports of various
> listeners will achieve the same result.
>
> I am not sure if we have a dev test that shows this though.
> That would be a nice contribution to have.
>
> Hope this helps
> Shreedhar
>
> Jason Lee wrote:
> >> I think that web host provider would have to provide separate
> >> glassfish domain for every customer. As far as I know each domain
> >> lives in its own environment and if one crashes - it can
> damage only
> >> itself (question to Glassfish developers: is that true?).
> >>
> >> The provider could create each domain folder in customer
> private home
> >> folder, so customers could launch/stop/restart/reconfigure
> their own
> >> domains using some shell access (asadmin tool) or glassfish admin
> >> web-page or something special developed for that purpose. The real
> >> question is how many domains could be handled by one
> server and how
> >> many resources (memory/cpu) is required for every single domain
> >> excluding resources taken by deployed applications...
> >>
> >
> > That's what I had assumed would have to happen, but I just
> didn't know
> > if domains could be restarted independently of each other,
> and if my
> > app causes the server/domain to die (which I've seen
> happen), would it
> > take out other domains with it? Ideally, they'd be well
> isolated from
> > each other, but I don't know how to go about testing that, so I was
> > hoping some of the GF devs would know for sure.
> Furthermore, it will
> > be much more convincing to my provider if the info came
> from someone
> > who really knows beyond someone like me who can only say "I
> think this
> > is the way it..." ;)
> >
> > -----
> > Jason Lee, SCJP
> > Programmer/Analyst
> > http://www.iec-okc.com
> >
> >
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