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Posted to oak-issues@jackrabbit.apache.org by "Francesco Mari (JIRA)" <ji...@apache.org> on 2016/07/26 08:39:20 UTC

[jira] [Resolved] (OAK-4596) The segment info record allows empty segments to be leaked

     [ https://issues.apache.org/jira/browse/OAK-4596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Francesco Mari resolved OAK-4596.
---------------------------------
    Resolution: Fixed

Fixed at r1754084.

> The segment info record allows empty segments to be leaked
> ----------------------------------------------------------
>
>                 Key: OAK-4596
>                 URL: https://issues.apache.org/jira/browse/OAK-4596
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: segment-tar
>            Reporter: Francesco Mari
>            Assignee: Francesco Mari
>             Fix For: Segment Tar 0.0.8
>
>
> The flush thread writes to disk dirty segment buffers every 5 seconds. A segment buffer is defined to be dirty if the amount of record bytes it contains is greater than zero. Since we always write an info record in every segment at the moment they are created, no segment buffer is ever empty. This means that the flush thread writes to disk almost empty segments every 5 seconds, that waste an additional amount of space because of the padding required by the TAR format.



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