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https://issues.apache.org/jira/browse/SLING-9906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17273567#comment-17273567
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Stefan Egli commented on SLING-9906:
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* unhalting implemented
[here|https://github.com/apache/sling-org-apache-sling-event/commit/8dae26f59bd83397c0acf6c8b1af28df6ebac652]
> Avoid retrying to load jobs if classes are missing
> --------------------------------------------------
>
> Key: SLING-9906
> URL: https://issues.apache.org/jira/browse/SLING-9906
> Project: Sling
> Issue Type: Improvement
> Components: Event
> Reporter: Carsten Ziegeler
> Assignee: Stefan Egli
> Priority: Major
> Fix For: Event 4.2.14
>
>
> When a Sling job is tried to be loaded, it might reference public api classes
> provided by bundles - although that is a bad pattern that should be avoid,
> sometimes this is used.
> While the job engine does not try to reload those jobs for execution - unless
> such a new job is created (which is unlikely as the class is missing), the
> re-assigning of jobs from a removed instance to a new one suffers from the
> same problem. And that is retried over and over again.
> So there are probably several possible improvements:
> - make sure that jobs are not reloaded when public classes are missing during
> job execution (unless bundles have changed)
> - reduce log output to a log statement (except of stack trace) if
> classloading for jobs fails
> - change re-assigning of jobs to not require classes to be available. This
> can probably be solved by using ResourceResolver.move
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