[jira] [Created] (SLING-2830) Discontinue per job configurations for queue processing

["Carsten Ziegeler (JIRA)" <ji...@apache.org>]

Carsten Ziegeler created SLING-2830:
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             Summary: Discontinue per job configurations for queue processing
                 Key: SLING-2830
                 URL: https://issues.apache.org/jira/browse/SLING-2830
             Project: Sling
          Issue Type: Improvement
          Components: Extensions
    Affects Versions: Extensions Event 3.1.4
            Reporter: Carsten Ziegeler
            Assignee: Carsten Ziegeler
             Fix For: Extensions Event 3.1.6


The configuration of job handling is usually done through queue configurations. These queues are assigned to one or more job topic and have different characteristics like if these jobs can be processed in parallel, how often a job should be retried, delay between retries etc. The queue's are configured globally through OSGi ConfigAdmin and are therefore the same on all cluster nodes.
When we started with the job handling, we didn't have this configuration, so each and every job contained this whole information as properties of the job itself - which clearly is a maintenance nightmare but can also lead to funny situations where two jobs with the same topic contain different configurations (e.g. one allowing parallel processing while the other does not).
With the introduction of the queue configurations, we already reduced the per job configuration possibilities and in some cases these are already ignored.

For the new version I plan to discontinue the per job configuration of queue's as it is simply not worth the effort to support it. And having a single truth of queue configurations makes maintenance and troubleshooting way easier.

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