[jira] [Updated] (SLING-3028) Support for progress tracking of jobs

["Victor Saar (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SLING-3028?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Victor Saar updated SLING-3028:
-------------------------------

    Attachment: SLING-3028.patch

I think the biggest issue of the current version is, that ETA and steps are mutually exclusive, which is usually not the case. The process needs to carry out a certain number of steps, which will take a certain time (ETA).

I've attached a patch with a single {{startProgress()}} method, {{setSteps()}} for setting the total number of steps, and {{setProgress()}} and {{setETA()}} for setting the current step and ETA.
                
> Support for progress tracking of jobs
> -------------------------------------
>
>                 Key: SLING-3028
>                 URL: https://issues.apache.org/jira/browse/SLING-3028
>             Project: Sling
>          Issue Type: Improvement
>          Components: Extensions
>            Reporter: Victor Saar
>              Labels: jobs
>         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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