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https://issues.apache.org/jira/browse/SLING-3028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13790327#comment-13790327
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Victor Saar commented on SLING-3028:
------------------------------------

I have no deep knowledge of the job processing bundle, but the changes 
generally look good to me. If the progress tracking API is missing anything 
will become apparent when people start using it.

> Support for progress tracking of jobs and keeping jobs
> ------------------------------------------------------
>
>                 Key: SLING-3028
>                 URL: https://issues.apache.org/jira/browse/SLING-3028
>             Project: Sling
>          Issue Type: Improvement
>          Components: Extensions
>            Reporter: Victor Saar
>            Assignee: Carsten Ziegeler
>              Labels: jobs
>             Fix For: Extensions Event 3.3.0
>
>         Attachments: SLING-3028.patch
>
>
> For long-running jobs, it would be useful to have some means to track 
> progress, which can be shown in a console for the user. This should include 
> the following:
> * ETA
> * Completeness value computed from (optional, defaults to 1.0) max and 
> current value (e.g. 42% or 23/100)
> * Log output stream for detailed progress information
> * Failure reason in case job failed
> AFAICS this requires a few changes to the existing implementation:
> * Jobs need additional support for setting properties, e.g. max and current 
> progress value
> * Jobs need to be kept at least for a while after they completed/failed to 
> give access to failure information/log stream



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