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Posted to oak-issues@jackrabbit.apache.org by "Tomek Rękawek (JIRA)" <ji...@apache.org> on 2017/05/15 06:22:04 UTC

[jira] [Updated] (OAK-6220) Copy on write node store implementation

     [ https://issues.apache.org/jira/browse/OAK-6220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tomek Rękawek updated OAK-6220:
-------------------------------
    Flags: Patch

> Copy on write node store implementation
> ---------------------------------------
>
>                 Key: OAK-6220
>                 URL: https://issues.apache.org/jira/browse/OAK-6220
>             Project: Jackrabbit Oak
>          Issue Type: New Feature
>          Components: core
>            Reporter: Tomek Rękawek
>             Fix For: 1.8
>
>         Attachments: OAK-6220.patch
>
>
> The copy-on-write (COW) node store implementation would allow to temporarily switch the repository into the "testing" mode, in which all the changes are saved in a reversible way. After switching back to the "production" mode, the test changes should be dropped.
> This should include checkpoints as well.
> Because the DocumentNodeStore and SegmentNodeStore supports COW natively, we may simply copy the / tree to some user-provided path and use it as a new root.



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