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From "Konrad Windszus (JIRA)" <>
Subject [jira] [Commented] (SLING-6745) kafka-based sling.event.api implementation
Date Mon, 07 Aug 2017 08:14:00 GMT


Konrad Windszus commented on SLING-6745:

For the record, the modules can be found now `contrib/commons/mom` (

> kafka-based sling.event.api implementation
> ------------------------------------------
>                 Key: SLING-6745
>                 URL:
>             Project: Sling
>          Issue Type: New Feature
>            Reporter: Stefan Egli
>            Assignee: Stefan Egli
> In job handling to scale for larger deployment it is essential to be able to execute
a job outside of the local instance. This can be in another instance in the same cluster (ie
when ontop of documentMk) or outside of the cluster (in AEM eg via [offloading|]).
In both cases Sling Event (Resource) stores the job in the repository (/var/eventing/jobs).
> It could be useful to have another variant of job execution that is managed entirely
outside of the repository. With SLING-5645 a new API was created to support messaging-based
implementations that would fit in this category as they map a job to a (one or a few) message(s).

> This new SLING-5645 Job-API is not entirely compatible with sling.event.api though.
> This ticket is to track an effort to provide a messaging-based implementation for sling.event.api
- namely for Kafka. The goal is to become a drop-in replacement of sling event without much
need for change on the user side of the sling.event.api.
> This might not right away become part of sling, but might start off in the contrib section
- to underscore that it's not something supported, at least as of yet.

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