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https://issues.apache.org/jira/browse/KARAF-5969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17021926#comment-17021926
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Jean-Baptiste Onofré commented on KARAF-5969:
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Basically, today, each Cellar node uses edge triggering: it pushed event to the
other nodes.
It would be more efficient to use level triggering, where each node
listens/subscribe to each other to update itself.
> Refactoring of Cellar internals: use level triggering instead of edge
> triggering
> --------------------------------------------------------------------------------
>
> Key: KARAF-5969
> URL: https://issues.apache.org/jira/browse/KARAF-5969
> Project: Karaf
> Issue Type: Improvement
> Components: cellar
> Reporter: Jean-Baptiste Onofré
> Assignee: Jean-Baptiste Onofré
> Priority: Major
> Fix For: cellar-4.3.0
>
>
> Generally speaking, the Cellar internals and logic are way too much complex.
> The main drawbacks are:
> 1. The cluster events (via the Hazelcast topic) contains all update data
> 2. The distributed maps are not really used (just to get the state)
> 3. Lot of Cellar components are useless from an user perspective (producers,
> handlers, ...)
> Instead, it would make more sense:
> 1. To store all in distributed maps
> 2. To have kind of distributed map listeners on node to "react" when a change
> is performed (instead of using the topic)
> 3. Remove the command/topic usage
> I will start a PoC around that.
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