[jira] [Commented] (LUCENE-4538) Cache DocValues DirecSource

["Commit Tag Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-4538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13610595#comment-13610595 ] 

Commit Tag Bot commented on LUCENE-4538:
----------------------------------------

[branch_4x commit] Simon Willnauer
http://svn.apache.org/viewvc?view=revision&revision=1406169

LUCENE-4538: Cache DocValues DirectSource

                
> Cache DocValues DirecSource 
> ----------------------------
>
>                 Key: LUCENE-4538
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4538
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: core/codecs
>    Affects Versions: 4.0
>            Reporter: Simon Willnauer
>            Assignee: Simon Willnauer
>             Fix For: 4.1, 5.0
>
>         Attachments: LUCENE-4538.patch, LUCENE-4538.patch
>
>
> Currently the user need to make sure that a direct source is not shared between threads and each time someone calls getDirectSource we create a new source which has a reasonable overhead. We can certainly reduce the overhead (maybe different issue) but it should be easier for the user to get a direct source and handle it. More than that is should be consistent with getSource / loadSource.

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