[kepler-dev] workflow execution question

Jianwu Wang jianwu at sdsc.edu
Thu Jul 17 09:17:48 PDT 2008

Hi, Dawid,

    I think your question is about data provenance (you can find an old 
introduction at 
Now it is implemented in Kepler. You can enable it by 
Attribute-->org.kepler.provenance.ProvenanceListener. It can record 
comprehensive information of an workflow execution.

Best wishes

Sincerely yours

Jianwu Wang
jianwu at sdsc.edu

Scientific Workflow Automation Technologies (SWAT) Laboratory
San Diego Supercomputer Center 
University of California, San Diego
San Diego, U.S.A. 

dejw wrote:
> Hi all,
> I have a question about workflow running and monitoring:
> I understand that a director is used for this. We will have some 
> workflows which could have loops, conditions and so on, they could be 
> quite complicated.
> As I can see I can use straight for this SDF Director, am I true? the 
> question is - can I have information about every workflow 'node' at 
> any given time of running the whole workflow?
> I mean can I check the status of some node in workflow, if finished 
> its status, some output, time it was fired, finished and so on? 
> Generally could I have a very detailed information about executed 
> workflow step by step?
> Or I have to implement my own director or extend existing for example 
> SDF Director?
> Regards,
> Dawid
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