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https://issues.apache.org/jira/browse/OAK-7640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16547923#comment-16547923
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Marcel Reutegger commented on OAK-7640:
---------------------------------------

Proposed changes are here: 
https://github.com/apache/jackrabbit-oak/compare/trunk...mreutegg:OAK-7640

The DocumentNodeStore refuses to start when the lastRev timestamp of the 
current cluster node is newer than the current time.

> Prevent commits in the past
> ---------------------------
>
>                 Key: OAK-7640
>                 URL: https://issues.apache.org/jira/browse/OAK-7640
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: documentmk
>            Reporter: Marcel Reutegger
>            Assignee: Marcel Reutegger
>            Priority: Minor
>              Labels: resilience
>             Fix For: 1.10
>
>
> This is similar to OAK-3883, but must prevent commits with revisions that are 
> older than already present in the repository. At runtime, this is already 
> taken care of with static fields in the Revision class, but on startup the 
> clock may have jumped into the past since Oak was stopped.



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