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Posted to oak-dev@jackrabbit.apache.org by "Michael Marth (JIRA)" <ji...@apache.org> on 2012/07/27 14:53:33 UTC

[jira] [Commented] (OAK-210) granularity of persisted data

    [ https://issues.apache.org/jira/browse/OAK-210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13423847#comment-13423847 ] 

Michael Marth commented on OAK-210:
-----------------------------------

Do you see this as something to be implemented (or not) by each MK independently (i.e. something like an MK implementation detail)?
                
> granularity of persisted data
> -----------------------------
>
>                 Key: OAK-210
>                 URL: https://issues.apache.org/jira/browse/OAK-210
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: mk
>            Reporter: Stefan Guggisberg
>            Assignee: Stefan Guggisberg
>
> the current persistence granularity is _single nodes_ (a node consists of properties and child node information). 
> instead of storing/retrieving single nodes it would IMO make sense to store subtree aggregates of specific nodes. the choice of granularity could be based on simple filter criteria (e.g. property value).
> dynamic persistence granularity would help reducing the number of records and r/w operations on the underlying store, thus improving performance.  

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