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https://issues.apache.org/jira/browse/OAK-1717?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marcel Reutegger resolved OAK-1717.
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Resolution: Won't Fix
Fix Version/s: (was: 1.3.1)
Resolved as WONTFIX.
> Concurrent updates of ordered index in cluster may fail
> -------------------------------------------------------
>
> Key: OAK-1717
> URL: https://issues.apache.org/jira/browse/OAK-1717
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: core
> Affects Versions: 0.20
> Reporter: Marcel Reutegger
> Assignee: Davide Giannella
> Labels: concurrency
> Attachments: OAK-1717-IT.patch
>
>
> In a clustered deployment with DocumentNodeStore on MongoDB it may happen
> that concurrent updates on the new ordered index fail because of conflicts.
> A common use case is maintaining an ordered index on a last modified date.
> When nodes with such a date are added concurrently on multiple cluster nodes,
> then all of them will try to update the ordered index at one end of the key
> list. The DocumentNodeStore will perform a couple of retries but there is no
> guarantee that the cluster nodes will sync within that time frame or some
> other session conflicts yet another time.
> A possible workaround is to declare the index as asynchronous.
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