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From: Chathuri Wimalasena <kamalasini@gmail.com>
Date: Tue, 21 May 2013 10:57:34 -0400
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Subject: Re: Updates to Airavata API version 0.8
To: dev@airavata.apache.org
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Hi Raman,

WorkflowExecutionError method not returning any data issue should be fixed
now. Can you get an update and check.

Regards,
Chathuri


On Tue, May 21, 2013 at 10:02 AM, Raminder Singh
<raminderjsingh@gmail.com>wrote:

> Thank, these are very useful for API users. Only thing i found confusing
> for the user is API managers.  ProvenanceManager is the one used to get
> experiment status. Users will get FINISHED or FAILED status from the data
> object. On failure, i was trying to find a method to get the error data but
> i was not able to find as those methods exist in ExecutionManager.
> According to me, experiment status and in case of failures get error need
> to be part of one manager. May be a ExperimentManager?  Getting output data
> can be left as part of provenance manages as only few client may want to
> get the data in few cases. Getting error detail in case of error is obvious
> step.
>
> Other thing can you please explain the difference between
> WorkflowExecutionError, ExperimentExecutionError, NodeExecutionError,
> GFacExecutionError on a Wiki page for the users. Also add a method to get
> JobID as that is required to get GFacExecutionError.
>
> I tested the WorkflowExecutionError method and its not returning any data.
> Can you please test that as well?
>
> ExperimentData data =
>  airavataAPI.getProvenanceManager().getExperimentData(experimentID);
> List<WorkflowExecutionError> experimentExecutionErrors =
> airavataAPI.getExecutionManager().getWorkflowExecutionErrors(experimentID,
> experimentID);
>
> Thanks
> Raminder
>
>
> On May 20, 2013, at 5:05 PM, Saminda Wijeratne wrote:
>
> > Following updates will be present Airavata API from 0.8 release.
> >
> >
> >   1. *Error message from the immediate exception used as the error
> message
> >   for the AiravataAPInvocationException*. Earlier it was just "Error
> >   invoking API". *This change was made so that the users of the API can
> >   show the error from the exception without having to dig in to the inner
> >   exception to get a better error message.*
> >   2. *Saving and retrieving experiment execution error details*. Earlier
> >   we were not persisting any execution error details of the workflow.
> Error
> >   details are only available only if the developers are monitoring
> experiment
> >   at the time of error occurs. *This is not feasible if users would only
> >   want to go through the error details later without doing monitoring
> from
> >   the beginning. Therefore we are now persisting the error details (not
> as
> >   part of provenance data) of executing workflows (i.e. experiments)* in
> >   to the registry and also retrieving from registry through Airavata API
> >   (which calls the Registry API).
> >
> > For now we have the functions for saving and retrieving errors in the
> > ExecutionManager[1]. We need to decide if this is the correct place to
> put
> > these functions. Your thoughts in this matter are most welcome...
> >
> >
> > Thanks,
> > Saminda
> >
> > 1.
> >
> https://svn.apache.org/repos/asf/airavata/trunk/modules/airavata-client/src/main/java/org/apache/airavata/client/api/ExecutionManager.java
>
>

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