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Posted to oak-issues@jackrabbit.apache.org by "Michael Dürig (JIRA)" <ji...@apache.org> on 2017/02/28 20:01:45 UTC

[jira] [Resolved] (OAK-2989) Swap large commits to disk in order to avoid OOME

     [ https://issues.apache.org/jira/browse/OAK-2989?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Dürig resolved OAK-2989.
--------------------------------
    Resolution: Incomplete

Might be caused by OAK-4949

> Swap large commits to disk in order to avoid OOME
> -------------------------------------------------
>
>                 Key: OAK-2989
>                 URL: https://issues.apache.org/jira/browse/OAK-2989
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.2.2
>            Reporter: Timothee Maret
>
> As described in [0] large commits consume a fair amount of memory. With very large commits, this become problematic as commits may eat up 100GB or more and thus causing OOME and aborting the commit.
> Instead of keeping the whole commit in memory, the implementation may store parts of it on the disk once the heap memory consumption reaches a configurable threshold.
> This would allow to solve the issue and not simply mitigate it as in OAK-2968, OAK-2969.
> The behaviour may already be supported for some configurations of Oak. At least the setup Mongo + DocumentStore seemed not to support it.
> [0] http://permalink.gmane.org/gmane.comp.apache.jackrabbit.oak.devel/8196



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