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From Michael Dürig (JIRA) <j...@apache.org>
Subject [jira] [Updated] (OAK-2938) Estimation of required memory for compaction is off
Date Mon, 01 Jun 2015 10:00:18 GMT

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

Michael Dürig updated OAK-2938:
    Issue Type: Sub-task  (was: Bug)
        Parent: OAK-2849

> 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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