Nicholas wrote:
>>>(Note: Sybase EAServer does not support this
>>>at present, but at least we understand the value of
>>>doing so).
>>>
>
> Oh I love this. Thank you for clarifying Sybase's
> position on this issue, Evan.
>
> As an aside, I would like to announce my own J2EE
> offering. Well... I don't actually have one... yet,
> but I too understand the value of a J2EE server. Any
> takers ?
>
> Give us all a break.
Why should I? Nobody else even seems to want to acknowledge the
obvious. Is backwards compatibility not important to anyone out
there except our customers?
We are actively considering the issue I mentioned. Will anyone
else even acknowledge that it is useful or important, or do you
all want to deny there is a problem?
> //Nicholas
>
>
>
> --- Evan Ireland <[EMAIL PROTECTED]> wrote:
>
>>Rob Woollen wrote:
>>
>>
>>><vendor>
>>>
>>>WLS RMI/IIOP or WebServices/SOAP clients should
>>>
>>not have problems
>>
>>>calling between WLS versions.
>>>
>>>WLS's RMI/T3 transport does not support calls
>>>
>>between 5.1 and 6.x,
>>
>>>though I believe it will support versions going
>>>
>>forward.
>>
>>></vendor>
>>>
>>
>>That's good to hear. And I would be interested to
>>know if you agree
>>that some customers find this sort of compatibility
>>important in an
>>Intranet/Extranet or Internet deployment
>>configuration.
>>
>>
>>
>>>-- Rob
>>>
>>> On Thu, Sep 06, 2001 at 12:36:17PM +1200, Evan
>>>
>>Ireland wrote:
>>
>>>>Well clearly I wouldn't if I was a WebLogic
>>>>
>>customer :-)
>>
>>>>But if I was a Sybase customer, I might well do
>>>>
>>this if I
>>
>>>>want to take advantage of scalability features
>>>>
>>(such as
>>
>>>>eneity bean object caching) in a new server
>>>>
>>version without
>>
>>>>spending tnes of thousands of dollars having
>>>>
>>client installations
>>
>>>>upgraded. Bear in mind these client installations
>>>>
>>might be outside
>>
>>>>my own company and may be very expensive to
>>>>
>>upgrade. Java applets
>>
>>>>might help but what if the clients aren't written
>>>>
>>in Java? What
>>
>>>>if they are written in VB?
>>>>
>>>>Should I have to upgrade my browser just because
>>>>
>>Amazon puts
>>
>>>>in a new web server version? I think not. You may
>>>>
>>think EJB is
>>
>>>>fundamentally different. I would disagree.
>>>>
>>>>Also, have you considered that some of your
>>>>
>>clients may be
>>
>>>>themselves servers? In a large enterprise, who
>>>>
>>wants to have
>>
>>>>to upgrade versions for all of their connected
>>>>
>>servers just
>>
>>>>because one of them is to be upgraded.
>>>>
>>>>We have even had requests from customers wanting
>>>>
>>app-server
>>
>>>>clusters with mixed versions. Do I want to
>>>>
>>simultaneously
>>
>>>>have to upgrade all nodes in my 20-node cluster
>>>>
>>(taking my
>>
>>>>site down for several days) when I can do it
>>>>
>>piece-meal and
>>
>>>>keeping my site up. (Note: Sybase EAServer does
>>>>
>>not support this
>>
>>>>at present, but at least we understand the value
>>>>
>>of doing so).
>>
>>>>True enterprise software vendors understand the
>>>>
>>importance of
>>
>>>>backwards compatibility. Why throw out the 'old'
>>>>
>>if it can
>>
>>>>happily 'co-exist' with the new?
>>>>
>>>>Anyway, I think I've had my say and I'll stop my
>>>>
>>BEA bashing for
>>
>>>>a few weeks :-)
>>>>
>>>>
>>>>
>>>>
>>>>>D
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>-----Original Message-----
>>>>>>From: A mailing list for Enterprise JavaBeans
>>>>>>
>>development
>>
>>>>>>[mailto:[EMAIL PROTECTED]]On Behalf Of
>>>>>>
>>Evan Ireland
>>
>>>>>>Sent: Wednesday, September 05, 2001 6:10 PM
>>>>>>To: [EMAIL PROTECTED]
>>>>>>Subject: Re: differrence in weblogic 5.1 and
>>>>>>
>>weblogic 6.0
>>
>>>>>>
>>>>>>Dion Almaer wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>>I understand the need for backwards
>>>>>>>
>>compatibility. However you have to
>>
>>>>>>>weigh up having your server be backwards
>>>>>>>
>>compatible,
>>
>>>>>>>to getting rid of that bloat. Depending on
>>>>>>>
>>what has been changed in the
>>
>>>>>>>server side maybe you really can't be backwards
>>>>>>>
>>compatible. It may be a
>>
>>>>>>>pain to run your client using the new
>>>>>>>
>>weblogic.jar etc... but
>>
>>>>>>>
>>>>>>is it *that*
>>>>>>
>>>>>>
>>>>>>
>>>>>>>much of a pain?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>It could be, if you have to install weblogic.jar
>>>>>>
>>on 20,000 client
>>
>>>>>>machines.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>>D
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>>-----Original Message-----
>>>>>>>>From: A mailing list for Enterprise JavaBeans
>>>>>>>>
>>development
>>
>>>>>>>>[mailto:[EMAIL PROTECTED]]On Behalf Of
>>>>>>>>
>>Evan Ireland
>>
>>>>>>>>Sent: Wednesday, September 05, 2001 4:52 PM
>>>>>>>>To: [EMAIL PROTECTED]
>>>>>>>>Subject: Re: differrence in weblogic 5.1 and
>>>>>>>>
>>weblogic 6.0
>>
>>>>>>>>
>>>>>>>>Cedric,
>>>>>>>>
>>>>>>>>Whatever happened to backwards compatibility?
>>>>>>>>
>>>>>>>>Why shouldn't older clients be able to talk to
>>>>>>>>
>>newer servers?
>>
>>>>>>>><vendor>
>>>>>>>>
>>>>>>>>Still, perhaps it's better if you leave it
>>>>>>>>
>>thay way. If you annoy enough
>>
>>>>>>>>of your customers, we might win some more
>>>>>>>>
>>business for Sybase EAServer.
>>
>>>>>>>></vendor>
>>>>>>>>
>>>>>>>>Cedric Beust wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>>>From: A mailing list for Enterprise
>>>>>>>>>>
>>JavaBeans development
>>
>>>>>>>>>>
>>>>>>>>>>this client code works fine with weblogic
>>>>>>>>>>
>>5.1 but it gives following
>>
>>>>>>>>>>error in weblogic 6.0
>>>>>>>>>>
>>>>>>>>>>Exception in main()
>>>>>>>>>>
>>:javax.naming.CommunicationException
>>
>>>>>>>>>>
>>>>>>[Root exception
>>>>>>
>>>>>>
>>>>>>
>>>>>>>>>>is
>>>>>>>>>>
>>weblogic.socket.UnrecoverableConnectException:
>>[Login failed:
>>
>>>>>>>>>>'Incompatible version:Incompatible versions
>>>>>>>>>>
>>- this server:6.0.0b2
>>
>>>>>>>>>>client:5.1.0]]
>>>>>>>>>>
>>>>>>>>>>can any one please help me and let me know
>>>>>>>>>>
>>what should I do
>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>You cannot communicate between client and
>>>>>>>>>
>>servers with
>>
>>>>>>>>>
> === message truncated ===
>
>
> =====
> Nicholas Whitehead
> Home: (973) 377 9335
> Cell: (973) 615 9646
> Work(@ JP Morgan): (212) 235 5783
> [EMAIL PROTECTED]
>
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