[jira] [Commented] (OAK-9841) Race condition in NodeStoreChecksService

["Robert Munteanu (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OAK-9841?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17575812#comment-17575812 ] 

Robert Munteanu commented on OAK-9841:
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[~kwin] - I am not a big fan over that approach since it requires custom code, but if you think that this is the best approach we should go for it.

> Race condition in NodeStoreChecksService
> ----------------------------------------
>
>                 Key: OAK-9841
>                 URL: https://issues.apache.org/jira/browse/OAK-9841
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: composite
>            Reporter: Konrad Windszus
>            Priority: Major
>
> The {{NodeStoreChecksService}} (https://github.com/apache/jackrabbit-oak/blob/bbc141fd1fb9ff0d9ce742279445df9eb698c3e3/oak-store-composite/src/main/java/org/apache/jackrabbit/oak/composite/checks/NodeStoreChecksService.java#L41) executes all bound {{MountedNodeStoreChecker}} s which have been there at the time of activation.
> The references are not greedily referenced and also there is no wait for specific {{MountedNodeStoreChecker}} services to be active.
> That leads to the fact that the usage of {{NodeStoreChecksService}} in {{CompositeNodeStoreService.registerCompositeNodeStore(...)}} is not deterministic as the starting order of OSGi services determine which {{MountedNodeStoreChecker}} are active during {{CompositeNodeStoreService.activate()}}.



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