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Hi Srinath,<br>
<br>
1 & 3 are simple and are possible to do today. 2 requires some
design considerations. As Chad mentioned, it's on our TODO list, but
will take some time to be accomplished.<br>
<br>
The WorkflowExecute class (under org.geon) takes a moml description
(XML file) and executes it. It can easily be deployed as a web service.<br>
<br>
Cheers,<br>
<br>
Efrat<br>
<br>
Srinath Perera wrote:
<blockquote cite="mid43A86E6B.6060900@cs.indiana.edu" type="cite">
<pre wrap="">Hi Shawn, Chad;
Thanks very much for the answer!
Just curious .. Is it a major hassle to do this with kepler
architecturally? Does Potelmy support offline execution?
Is it possible to do something like following? (I am just thinking aloud
:) )
1) detach the GUI and the execution
2) add a new logging mechanism that send the status messages to
persistent notification service
3) set up a services that accept kepler workflow xml files and execute them
Thanks very much
Srinath
Shawn Bowers wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Just a quick note: One way to achieve this functionality (in a very
simple way) is to run Kepler directly at the server (e.g., using
ptexecute) as a background process ... This would be a "poor man's"
version of what you are asking for. Some limitted monitoring could be
"built in" to the workflow or possibly using some of Ptolemy's logging
capabilities.
Also, there are some workflows defined in Kepler (TSI, etc.) that are
designed to perform what you are describing. That is, the workflow
itself describes a control-process for the execution of distributed
and long running (external) processes -- having special purpose
logging, monitoring, and adaptation mechanisms (e.g., for fault
tolerance).
-shawn
Chad Berkley wrote:
> Hi Srinath,
>
> This is something that has been discussed several times and a feature we
> definitely want. We do not have anything like that working yet though
> and probably won't for a while unless someone else volunteers to work on
> it. I think this is probably a post 1.0 release set of functionality.
>
> chad
>
> Srinath Perera wrote:
>> Hi All;
>>
>> Can we run the workflow in offline mode with kepler?
>>
>> By offline mode I mean something like
>>
>> 1) Some services in the workflow are long running
>> 2) The workflow is composed, saved and submitted to kepler (some
server)
>> 3) The server will run the workflow and the user can monitor the
>> workflow time to time?
>>
>> If yes where I can found more information about how to do it?
>>
>> Thanks
>> Srinath
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