[jira] [Commented] (MRM-1959) Switch to JCR Oak to allow upgrade of lucene version

["Martin Stockhammer (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MRM-1959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16173717#comment-16173717 ] 

Martin Stockhammer commented on MRM-1959:
-----------------------------------------

Some Unit Tests of the metadata repository are running now with a retry method, to take the asynchronous index updates into account. We will keep the asynchronous (NRT) index updates as standard but will provide a configuration switch for synchronous mode.

> Switch to JCR Oak to allow upgrade of lucene version
> ----------------------------------------------------
>
>                 Key: MRM-1959
>                 URL: https://issues.apache.org/jira/browse/MRM-1959
>             Project: Archiva
>          Issue Type: Improvement
>    Affects Versions: 3.0.0
>            Reporter: Martin Stockhammer
>            Assignee: Martin Stockhammer
>             Fix For: 3.0.0
>
>
> We are switching to JCR Oak that uses a higher lucene version.
> But switching to Oak has some drawbacks:
> - The repository format changed and we must provide a way to migrate (either 
> migrate the existing repository or create a new one by reindexing)
> - The JCR oak is asynchronous. So there may be some timing issues that are only visible at high load.
> - Configuration changed significantly and not all is well documented
> The incompatibility problem with the maven indexer that uses lucene in another version is solved with the maven indexer 6 snapshot version that uses now  a shadowed lucene version.



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