WSRF and ServiceMix - Philosophical Question

[inocult <in...@gmail.com>]

Hi everyone, for the past 4-5 years we've been working with Grids , WSRF and
the associate (WS-*) , we use liferay portal as a gateway and people create
new type of WSRF resources as needed to represent Computing, Storage,
Network devices or instruments / sensors in sensor networks. Currently the
infrastructure is usually point ot point as it is across organisations /
shared under VO rules with  GSI security framework. (typical grid) 

However, after digging a little more into ServiceMix I think that an ESB
could be a nice additional thing to have in the architecture as people have
multiple virtualization servers. (People can have 4-5 appliances they use to
represent different type of resources) I beleive the ESB could be a
"gateway/firewall" to the internals of the organization, or provide a more
reliable transfer between the services...maybe?

I'm having some issues seeing the usefulness of a ESB in this context, I
don't want to use a technology for the sake of it however I have an "itch"
that tells me the ESB has its place it what we are doing. 

Based on your experience how can ESBs be useful to Grids and the Virtual
Organizations / Distributed Resources represented with WSRF?
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Re: WSRF and ServiceMix - Philosophical Question - addendum

[Anand K Kalyanasundaram <an...@cavs.msstate.edu>]

Also, it supports more message exchange patterns if it interests you.

Anand

Anand K Kalyanasundaram wrote:
> Hi,
> We are using servicemix in the a similar context. In my humble 
> opinion, if you have more than one "endpoint"
> implementing the same service (same service interface), servicemix 
> provides all infrastructure for
> these endpoints to be registered inside
> the ESB. When the client talks to the service through servicemix, 
> someone else can make the decision regarding
> actual endpoint to use for this message. It could be used for fault 
> tolerance or load balancing. If point to point
> webservices were used, this fault tolerance or load balancing may have 
> to be built into the client, a layer in between the
> client and the service, or somewhere else (service handler?).
>
> I believe most other goodies offered by servicemix (like the BPEL 
> component) are variations
> of standalone web service counterparts (like the BPEL service).
>
> May be I missed something important in the ESB concept. Somebody 
> please correct me if I am wrong.
>
> my 2c.
> Anand
>
> inocult wrote:
>> Hi everyone, for the past 4-5 years we've been working with Grids , 
>> WSRF and
>> the associate (WS-*) , we use liferay portal as a gateway and people 
>> create
>> new type of WSRF resources as needed to represent Computing, Storage,
>> Network devices or instruments / sensors in sensor networks. 
>> Currently the
>> infrastructure is usually point ot point as it is across organisations /
>> shared under VO rules with  GSI security framework. (typical grid)
>> However, after digging a little more into ServiceMix I think that an ESB
>> could be a nice additional thing to have in the architecture as 
>> people have
>> multiple virtualization servers. (People can have 4-5 appliances they 
>> use to
>> represent different type of resources) I beleive the ESB could be a
>> "gateway/firewall" to the internals of the organization, or provide a 
>> more
>> reliable transfer between the services...maybe?
>>
>> I'm having some issues seeing the usefulness of a ESB in this context, I
>> don't want to use a technology for the sake of it however I have an 
>> "itch"
>> that tells me the ESB has its place it what we are doing.
>> Based on your experience how can ESBs be useful to Grids and the Virtual
>> Organizations / Distributed Resources represented with WSRF?
>>   

Re: WSRF and ServiceMix - Philosophical Question

[Anand K Kalyanasundaram <an...@cavs.msstate.edu>]

Hi,
We are using servicemix in the a similar context. In my humble opinion, 
if you have more than one "endpoint"
implementing the same service (same service interface), servicemix 
provides all infrastructure for
these endpoints to be registered inside
the ESB. When the client talks to the service through servicemix, 
someone else can make the decision regarding
actual endpoint to use for this message. It could be used for fault 
tolerance or load balancing. If point to point
webservices were used, this fault tolerance or load balancing may have 
to be built into the client, a layer in between the
client and the service, or somewhere else (service handler?).

I believe most other goodies offered by servicemix (like the BPEL 
component) are variations
of standalone web service counterparts (like the BPEL service).

May be I missed something important in the ESB concept. Somebody please 
correct me if I am wrong.

my 2c.
Anand

inocult wrote:
> Hi everyone, for the past 4-5 years we've been working with Grids , WSRF and
> the associate (WS-*) , we use liferay portal as a gateway and people create
> new type of WSRF resources as needed to represent Computing, Storage,
> Network devices or instruments / sensors in sensor networks. Currently the
> infrastructure is usually point ot point as it is across organisations /
> shared under VO rules with  GSI security framework. (typical grid) 
>
> However, after digging a little more into ServiceMix I think that an ESB
> could be a nice additional thing to have in the architecture as people have
> multiple virtualization servers. (People can have 4-5 appliances they use to
> represent different type of resources) I beleive the ESB could be a
> "gateway/firewall" to the internals of the organization, or provide a more
> reliable transfer between the services...maybe?
>
> I'm having some issues seeing the usefulness of a ESB in this context, I
> don't want to use a technology for the sake of it however I have an "itch"
> that tells me the ESB has its place it what we are doing. 
>
> Based on your experience how can ESBs be useful to Grids and the Virtual
> Organizations / Distributed Resources represented with WSRF?
>