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https://issues.apache.org/jira/browse/SLING-5321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Egli updated SLING-5321:
-------------------------------
    Fix Version/s:     (was: Discovery Impl 1.2.4)
                   Discovery Impl 1.2.6

> DiscoveryServiceImpl should have mandatory dependency to SyncTokenService
> -------------------------------------------------------------------------
>
>                 Key: SLING-5321
>                 URL: https://issues.apache.org/jira/browse/SLING-5321
>             Project: Sling
>          Issue Type: Bug
>          Components: Extensions
>    Affects Versions: Discovery Impl 1.2.2
>            Reporter: Stefan Egli
>            Assignee: Stefan Egli
>             Fix For: Discovery Impl 1.2.6
>
>
> Currently {{DiscoveryServiceImpl}} has an {{OPTIONAL_UNARY}} dependency to 
> {{SyncTokenService}}. This has the effect that at 
> {{DiscoveryServiceImpl.activate}} time, the {{SyncTokenService}} might not 
> yet be set, but that it would be set at a later point in time.
> Due to the fact that {{activate}} is the only time when this 
> {{SyncTokenService}} is checked (depending on config) and set with the 
> {{ViewStateManager}}, it will be missed and assumed to be not available in 
> this case.
> Which means you can have the sync token service available on one instance and 
> not in another instance in the same cluster - leading to sync failure (where 
> the only workaround is disabling the sync token service entirely)



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