You are viewing a plain text version of this content. The canonical link for it is here.

Posted to oak-issues@jackrabbit.apache.org by "Michael Dürig (JIRA)" <ji...@apache.org> on 2015/05/04 09:28:06 UTC

[jira] [Updated] (OAK-2801) Clear excess references before cleanup

     [ https://issues.apache.org/jira/browse/OAK-2801?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Dürig updated OAK-2801:
-------------------------------
    Attachment:     (was: with-OAK-2801.png)

> Clear excess references before cleanup
> --------------------------------------
>
>                 Key: OAK-2801
>                 URL: https://issues.apache.org/jira/browse/OAK-2801
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: segmentmk
>            Reporter: Michael Dürig
>            Assignee: Michael Dürig
>              Labels: compaction, gc
>             Fix For: 1.3.0
>
>         Attachments: OAK-2801.patch, without-OAK-2801.png
>
>
> {{FileStore#cleanup}} would be more efficient when getting rid of as much references as possibly beforehand. Excess references are contributed by the current {{TarWriter}} instance and segment cache in {{SegmentTracker}}. 
> Those excess references turn out to be especially harmful with many concurrent writers continuously writing to the repository. Starting with a certain write load clean up will become completely blocked. 



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)