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From "Marcel Reutegger (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (OAK-5010) Document split with binary properties too eager
Date Wed, 26 Oct 2016 15:19:58 GMT

     [ https://issues.apache.org/jira/browse/OAK-5010?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Marcel Reutegger resolved OAK-5010.
-----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.5.13

Fixed in trunk: http://svn.apache.org/r1766692

> Document split with binary properties too eager
> -----------------------------------------------
>
>                 Key: OAK-5010
>                 URL: https://issues.apache.org/jira/browse/OAK-5010
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: core, documentmk
>    Affects Versions: 1.5.1
>            Reporter: Marcel Reutegger
>            Assignee: Marcel Reutegger
>            Priority: Minor
>             Fix For: 1.6, 1.5.13
>
>
> OAK-2392 changed the split logic for documents and creates a split document as soon as
a binary property is overwritten. This happens quite frequently in a default Oak setup with
oak-lucene. Lucene files are stored in the repository and many of them are short lived because
they are merged into bigger segments later. This means all documents for those files are split
as soon as the file is deleted. The revision garbage collection does not get any benefit from
this, because it will remove the files anyway. It is actually more expensive, because the
GC also needs to collect the split documents.
> The split logic should be updated to only create a split document with binary properties
when the node still exists at the current head revision.



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