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From Kresten Krab Thorup <k...@trifork.com>
Subject Re: Trifork CORBA
Date Wed, 26 Oct 2005 14:51:32 GMT
As Alan suggests, I think we should try to find the people that are  
interested in participating in this project, and start working on  
some adding stuff to the Wiki in relations to this.   I think we need  
to find a smaller forum where we can discuss the architecture of the  
ORB itself.  How do you normally launch new development efforts?

One discussion which would be worthy here on the general dev list is  
how the ORB will be used.  In the Trifork server we do all RMI via  
IIOP using CORBA, and all local RMI invocations go via the CORBA  
implementation.  We do clustering, transactions and security via the  
CORBA implementation, and so this puts another pressure on the  
quality of the ORB.  CORBA/IIOP, as backwards and complicated as it  
may seem, still has many nice properties that facilitate low resource  
consumption and good stability for networked applications.

If, in Geronimo, the ORB is "just" there to satisfy interoperability  
needs, and not something that is crucial to the successful deployment  
of Geronimo servers and used as the backbone of the EJB container for  
instance; then this effort needs to be prioritized for such needs.   
That means, for instance, that performance is not a critical issue  
for the ORB.  And we can definitively simplify many things if CORBA  
performance is deemed non-important.

Let me know what you think.  What should be the priorities here?

Kresten


On Oct 25, 2005, at 5:35 PM, Geir Magnusson Jr. wrote:

> I think that the intention here is pretty clear.  How do you think  
> we should get started?
>
> geir
>
>
>
> On Oct 25, 2005, at 11:31 AM, Dain Sundstrom wrote:
>
>
>> I pulled down the code an it looks like a lot of IIOP stuff is  
>> there, what is missing for a full ORB?  I'm not sure how I can  
>> help with this without the full orb code.  If we had that, I could  
>> try integrating it into OpenEJB, but I am completely lost.
>>
>> I had this same problem with the last IIOP donation, which was  
>> also just IO code, and I hope to not repeat the experience.
>>
>> What is your plan to get people involved?
>>
>> -dain
>>
>> On Oct 25, 2005, at 8:19 AM, Dain Sundstrom wrote:
>>
>>
>>
>>> For those of you that missed it Kresten wrote in the JIRA entry:
>>> ----------------------------------------------------------------
>>>
>>> As has been discussed previously, Trifork wants to donate a CORBA  
>>> implementation. This message is to get things really started in  
>>> context of Geronimo. Along with this message is a tar ball of the  
>>> initial contribution, and I want to take this opportunity to  
>>> describe what we are donating and how we would like to do this.
>>>
>>> To set things straight, will not be donating a full CORBA  
>>> implementation up front. What we are proposing is to donate the  
>>> resources (read: developers) that it takes to do a full CORBA  
>>> implementation in context of Apache Geronimo. Our concern with  
>>> donating the full code is that we want to ensure that this is  
>>> built as a community effort, so when we're done we are not the  
>>> "single point of failure" for this to succeed as we go forward.  
>>> We would like to avoid being the only ones to know the code, so  
>>> that the CORBA implementation that comes out of this is something  
>>> that can have a life without us pushing it forward. This is  
>>> really the principal value that we see in contributing to this  
>>> project. We want to have a free and independent CORBA  
>>> implementation too, but we would like to avoid being stuck on it  
>>> as we go forward.
>>>
>>> Having said all that, we do have a CORBA implementation; and in  
>>> our effort to bring this forward we will definitively use bits,  
>>> pieces or even large chunks of this to make the Apache Geronimo  
>>> CORBA implementation be complete and successful.
>>>
>>> We know that there is eagerness in the Geronimo community to get  
>>> things started in building a CORBA solution, and so hopefully  
>>> this first contribution will be accepted as a starting point from  
>>> which we will build a world-class CORBA system.
>>>
>>> What is in this package is the foundation of a new I/O subsystem  
>>> that I have previously talked about, and some of the code to hook  
>>> that up with the client-side of the CORBA stack. As such, thins  
>>> chunk of code is not in even self-contained nor complete. It's  
>>> just the state of the code in our lab right now, and we want to  
>>> move this into Geronimo space before we get too far along.
>>>
>>> The mile stones that I imagine moving forward from here would be  
>>> something like this:
>>>
>>> 1. Client-side stream-based invocation.
>>> 2. Value semantics (object serialization)
>>> 3. Server-side stream-based invocation handling, including POA  
>>> implementation.
>>> 4. Dynamic stubs.
>>> 5. Local invocations.
>>>
>>> There are a ton of sub-projects that I would love to see someone  
>>> starting on; some of which already have place holders or stubs in  
>>> the code that is part of the tar ball attached to this.
>>>
>>>
>>> On Oct 25, 2005, at 7:40 AM, Geir Magnusson Jr. wrote:
>>>
>>>
>>>
>>>
>>>> Kresten,
>>>>
>>>> Can you take the main comment of the JIRA and post here on the  
>>>> list?  Having a threaded discussion in JIRA is awful.
>>>>
>>>> Welcome, thanks for the contribution, and I look forward for  
>>>> more discussion here.
>>>>
>>>> geir
>>>>
>>>> On Oct 25, 2005, at 10:29 AM, Kresten Krab Thorup (JIRA) wrote:
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>> Use Trifork CORBA (freeorb
>>>>> --------------------------
>>>>>
>>>>>          Key: GERONIMO-1111
>>>>>          URL: http://issues.apache.org/jira/browse/GERONIMO-1111
>>>>>      Project: Geronimo
>>>>>         Type: New Feature
>>>>>   Components: CORBA
>>>>>     Versions: 1.1
>>>>>     Reporter: Kresten Krab Thorup
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> -- 
>>>>> This message is automatically generated by JIRA.
>>>>> -
>>>>> If you think it was sent incorrectly contact one of the  
>>>>> administrators:
>>>>>    http://issues.apache.org/jira/secure/Administrators.jspa
>>>>> -
>>>>> For more information on JIRA, see:
>>>>>    http://www.atlassian.com/software/jira
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>> -- 
>>>> Geir Magnusson Jr                                  +1-203-665-6437
>>>> geirm@apache.org
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>
>>
>>
>
> -- 
> Geir Magnusson Jr                                  +1-203-665-6437
> geirm@apache.org
>
>
>


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