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https://issues.apache.org/jira/browse/OAK-1749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marcel Reutegger resolved OAK-1749.
-----------------------------------

    Resolution: Fixed

Merged fix into 1.0 branch in http://svn.apache.org/r1589038

> AsyncIndexUpdate may resurrect nodes
> ------------------------------------
>
>                 Key: OAK-1749
>                 URL: https://issues.apache.org/jira/browse/OAK-1749
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 0.20
>            Reporter: Marcel Reutegger
>            Assignee: Marcel Reutegger
>            Priority: Blocker
>             Fix For: 1.0
>
>         Attachments: AsyncIndexUpdateTest.java.patch
>
>
> There is a race condition in the AsyncIndexUpdate.run() method. The 
> implementation creates a checkpoint used as the after node state for the 
> comparison with the previous checkpoint. In a next step a builder is created 
> from the current root state of the node store. Node removed between the 
> checkpoint call and retrieving the root state may get resurrected by the 
> AsyncIndexUpdate.



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