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Posted to oak-issues@jackrabbit.apache.org by "Michael Dürig (JIRA)" <ji...@apache.org> on 2016/01/08 18:03:39 UTC

[jira] [Created] (OAK-3854) TarMK tools should check wehther they run against a matching version of the repository

Michael Dürig created OAK-3854:
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             Summary: TarMK tools should check wehther they run against a matching version of the repository
                 Key: OAK-3854
                 URL: https://issues.apache.org/jira/browse/OAK-3854
             Project: Jackrabbit Oak
          Issue Type: Improvement
          Components: run
            Reporter: Michael Dürig
            Assignee: Michael Dürig


Running tools that write into a segment store might result in unwanted upgrading if the version of the tool uses a more recent segment version than the store. E.g. off line compaction currently upgrades segment format 10 to 11. 

To protected against inadvertent upgrades, a tool should check whether the segment version of the store matches its expectation (currently 11). If not, the tool should exit with a respective warning / error. For some tools it can make sense to provide a flag (e.g. {{--force}}) to override this. With this e.g. offline compaction can still be used for upgrading a segment store if explicitly told to do so. 



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