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https://issues.apache.org/jira/browse/SLING-2901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13674443#comment-13674443
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Stefan Egli commented on SLING-2901:
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The discovery.impl sends out a TOPOLOGY_CHANGING event before stopping its
bundle on detection of a duplicate sling.id in a cluster.
> Add robust paranoia check to detect duplicate sling.id in a cluster
> -------------------------------------------------------------------
>
> Key: SLING-2901
> URL: https://issues.apache.org/jira/browse/SLING-2901
> Project: Sling
> Issue Type: Improvement
> Components: Extensions
> Affects Versions: Discovery Impl 1.0.0
> Reporter: Stefan Egli
> Assignee: Stefan Egli
>
> Follow-up of SLING-2892 which added a simple (but not robust) paranoia check
> for duplicate sling.id detection in a cluster.
> A robust check can be achieved ontop of SLING-2892 by additionally setting a
> 'runtimeId' property (which is a UUID assigned at activation of the
> HeartbeatHandler) right after activation/at first time, and checking for
> changes of that property.
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