lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2627) MMapDirectory chunking is buggy
Date Fri, 27 Aug 2010 21:19:53 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2627?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12903646#action_12903646
] 

Uwe Schindler commented on LUCENE-2627:
---------------------------------------

For not breaking hudson on 32 bit JVMs, we should enable the MMap close hack when testing
against that dir, else we may run out of address space.

> MMapDirectory chunking is buggy
> -------------------------------
>
>                 Key: LUCENE-2627
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2627
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Store
>            Reporter: Robert Muir
>            Assignee: Robert Muir
>         Attachments: LUCENE-2627.patch, LUCENE-2627_test.patch
>
>
> MMapDirectory uses chunking with MultiMMapIndexInput.
>  
> Because Java's ByteBuffer uses an int to address the
> values, it's necessary to access a file >
> Integer.MAX_VALUE in size using multiple byte buffers.
> But i noticed from the clover report the entire MultiMMapIndexInput class is completely
untested: no surprise since all tests make tiny indexes.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org


Mime
View raw message