[jira] [Created] (SLING-5321) DiscoveryServiceImpl should have mandatory dependency to SyncTokenService

["Stefan Egli (JIRA)" <ji...@apache.org>]

Stefan Egli created SLING-5321:
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             Summary: 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 1.2.4


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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