[kepler-users] Running Workflows in offline Mode With Kepler

[Efrat Frank]

Hi Srinath,

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.

The WorkflowExecute class (under org.geon) takes a moml description (XML 
file) and executes it. It can easily be deployed as a web service.

Cheers,

Efrat

Srinath Perera wrote:

>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:
>  
>
>>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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>> >> 
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>> > 
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>>
>>    
>>
>
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