Konrad Windszus created OAK-9841:
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Summary: 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
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 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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