[kepler-users] How to run kepler Command Line tool to generate provenance data

[Derik Barseghian]

Hi Madhavi,

I'm not sure about being able to write an actor without downloading the source. Generally it's very useful to be able to refer to the source as you code.
Keep in mind some actors may be developed from directly within Kepler by modifying others, e.g. by customizing the Rexpression, MatlabExpression, Python, or External Execution actors, or by creating a Composite.

I don't think there's a way to instantiate an actor from command line -- I'm not clear on what you're after here. 

For information on suite vs module, please see:
https://kepler-project.org/developers/teams/build/documentation/build-system-instructions#making-your-own-modules
Basically a suite allows you to group suites and/or modules.

I don't know of an existing actor that does scatter/gather. You may want to write one using Java NIO: http://tutorials.jenkov.com/java-nio/scatter-gather.html

Derik

On Jan 26, 2011, at 3:19 AM, Madhavi Tikhe wrote:

> Hi Derik,
> 
> Thanks a lot again for the information.
> Now that I am getting more n more interested in Kepler, I want to create my own actors and workflow for BFast.
> I have gone through the steps creating hello world actor but then it needs to download/compile the Kepler's source code.
> Is it possible to write an actor using the kepler's jar files and not using the code?
> Is there any command line/non-gui way to instantiate a component?
> Also what is the difference between suite and a module?
> 
> Does Kelper provide any way to do scatter-gather?
> 
> Thanks again for your help,
> Madhavi
> 
> -----Original Message-----
> From: Derik Barseghian [mailto:barseghian at nceas.ucsb.edu]
> Sent: Wednesday, January 26, 2011 12:58 AM
> To: Madhavi Tikhe
> Cc: kepler-users at kepler-project.org
> Subject: Re: [kepler-users] How to run kepler Command Line tool to generate provenance data
> 
> Hi Madhavi,
> 
> I'm not aware of a way to have 1 kepler process launch and run 2 or more workflows in a row before quitting. You could simply run a series from command line like:
> ant run-w...; ant run-w...; etc.
> or write a script to loop through workflow files in a directory, and/or a cron job.
> 
> On a somewhat related note, Jing has added a scheduler module to kepler, which allows you to schedule a workflow to run periodically on a remote kepler server. Any resulting run-kars from these executions are written into a kepler repository (currently MetaCat). This module is not yet released, but will probably be available in the near future.
> 
> Derik
> 
> On Jan 24, 2011, at 9:39 PM, Madhavi Tikhe wrote:
> 
>> Thanks a lot for your reply Derik. It helped.
>> 
>> When we talk about workflow execution from command line, it is possible to execute the two or more workflows in a batch (batch processing of the workflows)?
>> Thanks again,
>> Madhavi
>> 
>> -----Original Message-----
>> From: Derik Barseghian [mailto:barseghian at nceas.ucsb.edu]
>> Sent: Tuesday, January 25, 2011 1:02 AM
>> To: Madhavi Tikhe
>> Cc: kepler-users at kepler-project.org
>> Subject: Re: [kepler-users] How to run kepler Command Line tool to generate provenance data
>> 
>> Hi Madhavi,
>> 
>> Yes. The workflow must contain a ProvenanceRecorder, i.e. it must be saved from the GUI while using the provenance suite. Executions of this workflow will then write provenance data.
>> 
>> Additionally, if you would like your execution to generate a "run-kar" containing some metadata about the execution and a report pdf upon completion, from within the reporting suite you should create a report design from the Reporting view and save to a kar, set keepResultantRunKars true in reporting/resources/configurations/configuration.xml, and then execute from the command line.
>> 
>> There are a few ways to execute from command line. One is:
>> ant run-workflow-no-gui-server -Dworkflow=/Users/derik/KeplerData/workflows/MyWorkflows/yourWorkflow.kar
>> 
>> The resultant run-kar will be created in KeplerData/workflow-runs
>> 
>> Derik
>> 
>> On Jan 23, 2011, at 10:37 PM, Madhavi Tikhe wrote:
>> 
>>> Hello,
>>> I would like to run the Kepler from command line to execute a workflow. In this case is it possible to generate provenance data?
>>> Regards,
>>> Madhavi
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> 
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