Creating virtual hosts dynamically on the Java broker

[Danushka Menikkumbura <da...@gmail.com>]

Hi devs,

Can we create vhosts dynamically?. In fact when I go though the code I can
see that it is doable with little changes but what are the complications
with approach? Also I would like to know how scalable it is to create so
many virtual hosts at runtime.

Thanks,
Danushka

--
Danushka Menikkumbura
Apache Axis2 PMC Member

Apache Qpid - World Domination through Advanced Message Queueing ;
http://qpid.apache.org

phone : +94 77 364 1754
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Re: Creating virtual hosts dynamically on the Java broker

[Andrew Kennedy <an...@gmail.com>]

On 10 Dec 2010, at 00:36, Danushka Menikkumbura wrote:
> Hi devs,

Hi, Danushka.

> Can we create vhosts dynamically?. In fact when I go though the  
> code I can
> see that it is doable with little changes but what are the  
> complications
> with approach? Also I would like to know how scalable it is to  
> create so
> many virtual hosts at runtime.

What is 'many' when talking about virtual hosts? I mean, usually when  
you're thinking about upper limits for this kind of thing, there's  
some other issue, that may be easier to solve?

I suppose you could test the memory impact and so forth with a script  
that generated a 'virtualhosts.xml' file with N uniquely named  
'<virtualhost />' elements, where N approaches MAXINT or whatever?  
However, I can't see a (good) reason for creating a large amount of  
virtual hosts either, really, like Robbie says. What are you trying  
to do here, enforce user or application separation for a large number  
of users/applications, or something similar?

Also, dynamically adding virtual hosts could cause problems if people  
simply misspel their names, although you could add a security  
permission for adding virtual hosts, and only grant it to certain  
users. See dynamically created queues, for example...

Cheerz,
Andrew.
-- 
-- andrew d kennedy ? do not fold, bend, spindle, or mutilate ;
-- http://grkvlt.blogspot.com/ ? edinburgh : +44 7582 293 255 ;

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RE: Creating virtual hosts dynamically on the Java broker

[Robbie Gemmell <ro...@gmail.com>]

It can't be done currently, but as you note there is probably little
involved in making it possible. To what end though?

Robbie

> -----Original Message-----
> From: Danushka Menikkumbura [mailto:danushka.menikkumbura@gmail.com]
> Sent: 10 December 2010 00:36
> To: dev@qpid.apache.org
> Subject: Creating virtual hosts dynamically on the Java broker
> 
> Hi devs,
> 
> Can we create vhosts dynamically?. In fact when I go though the code I
> can
> see that it is doable with little changes but what are the
> complications
> with approach? Also I would like to know how scalable it is to create
> so
> many virtual hosts at runtime.
> 
> Thanks,
> Danushka
> 
> --
> Danushka Menikkumbura
> Apache Axis2 PMC Member
> 
> Apache Qpid - World Domination through Advanced Message Queueing ;
> http://qpid.apache.org
> 
> phone : +94 77 364 1754
> personal blog : http://danushka-menikkumbura.blogspot.com/
> <http://danushka-menikkumbura.blogspot.com/>technical blog :
> http://danushkastechythoughts.blogspot.com/
>  <http://danushkastechythoughts.blogspot.com/>twitter :
> http://twitter.com/danushkamenik
> <http://twitter.com/danushkamenik>linkedin :
> http://lk.linkedin.com/in/danushka


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