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Posted to oak-issues@jackrabbit.apache.org by "Michael Dürig (JIRA)" <ji...@apache.org> on 2015/06/01 12:12:17 UTC

[jira] [Resolved] (OAK-2938) Estimation of required memory for compaction is off

     [ https://issues.apache.org/jira/browse/OAK-2938?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Dürig resolved OAK-2938.
--------------------------------
    Resolution: Fixed

Fixed in trunk at http://svn.apache.org/r1682855
1.0 at http://svn.apache.org/r1682857
1.2 at http://svn.apache.org/r1682858

> Estimation of required memory for compaction is off
> ---------------------------------------------------
>
>                 Key: OAK-2938
>                 URL: https://issues.apache.org/jira/browse/OAK-2938
>             Project: Jackrabbit Oak
>          Issue Type: Sub-task
>          Components: core
>            Reporter: Michael Dürig
>            Assignee: Michael Dürig
>              Labels: compaction, gc
>             Fix For: 1.3.0, 1.2.3, 1.0.15
>
>
> Currently compaction will be skipped if some rough estimation determines that there is not  enough memory to run. That estimation however assumes that each compaction cycle requires as much space as the compaction map already takes up. This is too conservative. Instead the amount of memory taken up by the last compaction cycle should be a better estimate. 



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