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https://issues.apache.org/jira/browse/SLING-5131?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Egli closed SLING-5131.
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> Introduce ConsistencyService to discovery.commons
> -------------------------------------------------
>
> Key: SLING-5131
> URL: https://issues.apache.org/jira/browse/SLING-5131
> Project: Sling
> Issue Type: New Feature
> Components: Extensions
> Reporter: Stefan Egli
> Assignee: Stefan Egli
> Fix For: Discovery Commons 1.0.0
>
>
> As described [in
> SLING-4627|https://issues.apache.org/jira/browse/SLING-4627?focusedCommentId=14532334&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14532334]
> doing any kind of discovery implementation on top of an eventually
> consistent repository requires synchronization with this very repository in
> order to ensure all events of an old incarnation of a view are processed
> before a new incarnation of a view is announced to everybody. Thus a
> cluster-wide synchronization is required.
> Such a synchronization can be achieved fairly straight-forward by storing a
> well-defined 'sync token' into a location which is known to everybody else in
> the cluster - and having everybody wait for seeing this token before
> continuing.
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