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From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-1741) Make MMapDirectory.MAX_BBUF user configureable to support chunking the index files in smaller parts
Date Mon, 13 Jul 2009 21:57:14 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12730543#action_12730543
] 

Uwe Schindler commented on LUCENE-1741:
---------------------------------------

Eks Dev wrote in java-dev:

bq. I have no test data which size is good, it is just trying out

Sure, for this you need bad OS and large index, you are not as lucky as I am to have it  :)

Anyhow, I would argument against default value. An algorithm is quite simple, if you hit OOM
on map(), reduce this value until it fits :)
no need to touch it if it works...


> Make MMapDirectory.MAX_BBUF user configureable to support chunking the index files in
smaller parts
> ---------------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-1741
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1741
>             Project: Lucene - Java
>          Issue Type: Improvement
>    Affects Versions: 2.9
>            Reporter: Uwe Schindler
>            Assignee: Uwe Schindler
>            Priority: Minor
>             Fix For: 2.9
>
>         Attachments: LUCENE-1741.patch, LUCENE-1741.patch
>
>
> This is a followup for java-user thred: http://www.lucidimagination.com/search/document/9ba9137bb5d8cb78/oom_with_2_9#9bf3b5b8f3b1fb9b
> It is easy to implement, just add a setter method for this parameter to MMapDir.

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