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From "Michael Marth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OAK-210) granularity of persisted data
Date Fri, 27 Jul 2012 12:53:33 GMT

    [ 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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