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https://issues.apache.org/jira/browse/FALCON-1686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15067508#comment-15067508
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Ajay Yadava commented on FALCON-1686:
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This is a genuine issue and we have also experienced the need for such a
capability.
The reason that the rerun doesn't work is because on update old coordinators
are not updated, only new coordinators are created from sometime in future.
Rerunning old coordinators won't work e.g. in case of adding a new input.
Late Data handling if configured properly should take care of the rerun of the
dependent processes.
That said I believe [~sandeep.samudrala] is working on this feature(internally
known as effective time update) and it might be available in 0.9.
> Support for reprocessing
> ------------------------
>
> Key: FALCON-1686
> URL: https://issues.apache.org/jira/browse/FALCON-1686
> Project: Falcon
> Issue Type: Improvement
> Affects Versions: 0.7
> Reporter: Mass Dosage
>
> We have a number of ETL jobs which we schedule to run on a regular basis with
> Falcon. This works fine. However, we often have cases where we need to run
> the exact same jobs over past date ranges in order to reprocess data after a
> code change. There doesn't seem to be any easy way to do this in Falcon at
> the moment. Ideally we'd have a controlled way of saying "run this process
> for dates between X and Y". There should also be a way to control whether
> downstream processes are triggered by the data being reprocessed or not. In
> some cases you may want downstream jobs to also run on the new data but in
> other cases you might not.
> With Oozie, if one wants to reprocess data from any time in history, one can
> update the start & end-dates (using the job.properties file) and submit a new
> coordinator to run alongside the existing one. As the coordinator-ids are
> unique they do not clash. In Falcon, processes are defined by their readable
> name so one would need to update that in the process file directly.
> We are currently working around this issue by making a copy of the original
> Falcon process, giving it a different name and changing the dates. This isn't
> ideal and leads to a lot of XML duplication.
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