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https://issues.apache.org/jira/browse/SLING-2830?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13635002#comment-13635002
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Bertrand Delacretaz commented on SLING-2830:
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Any backwards compatibility issues that you can think of?
For example, what will happen when installing a new version of the bundle that
manages this, on a system where the old version with per job configurations are
active?
> 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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