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 "Alex Parvulescu (JIRA)" <ji...@apache.org> on 2014/12/05 10:12:13 UTC
[jira] [Commented] (OAK-2322) Compaction estimation includes all
data segments
[ https://issues.apache.org/jira/browse/OAK-2322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14235291#comment-14235291 ]
Alex Parvulescu commented on OAK-2322:
--------------------------------------
More to the point, where there are cleared checkpoints in a system with external data store, those will never get reported as garbage.
> Compaction estimation includes all data segments
> ------------------------------------------------
>
> Key: OAK-2322
> URL: https://issues.apache.org/jira/browse/OAK-2322
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: core, segmentmk
> Reporter: Alex Parvulescu
> Assignee: Alex Parvulescu
>
> The original design of the compaction estimator was to only focus on binary segments when computing the amount of garbage that can be collected.
> This has a flaw when it runs on systems with external data stores configured as there will be almost no binary segments and the estimation will always be _0_, no need for compaction.
> The change to include all segments is not big, the _uuids_ bloomfilter is already initialized with the total number of segments, and the segment collection already loads everything in memory.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)