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https://issues.apache.org/jira/browse/SLING-5058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Egli closed SLING-5058.
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> introduce viewCnt to ./establishedView to be able to detect missing changes
> ---------------------------------------------------------------------------
>
> Key: SLING-5058
> URL: https://issues.apache.org/jira/browse/SLING-5058
> Project: Sling
> Issue Type: Improvement
> Components: Extensions
> Affects Versions: Discovery Impl 1.1.6
> Reporter: Stefan Egli
> Assignee: Stefan Egli
> Priority: Minor
> Fix For: Discovery Impl 1.2.2
>
>
> With SLING-5030 when an instance detects that it is ISOLATED_FROM_TOPOLOGY it
> will resets its {{leaderElectionId}} to ensure that it is not becoming leader
> again. This works fine when the instance actually detects that it is
> isolated. If the timing however is such that it does not detect the isolation
> (eg when the isolation is for a very short time only), then it would not be
> able to reset the {{leaderElectionId}}, thus it might become leader again -
> which means that we have an unnecessary leader switch.
> This could be improved by introducing a {{viewCnt}} on the
> {{./establishedView}} - and an instance could detect a gap in the viewCnt and
> *then* reset the {{leaderElectionId}}.
> Putting this out-of-scope for discovery.impl 1.1.8 though
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