You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@lucene.apache.org by "Michael McCandless (JIRA)" <ji...@apache.org> on 2009/07/16 20:10:14 UTC
[jira] Resolved: (LUCENE-1566) Large Lucene index can hit false OOM
due to Sun JRE issue
[ https://issues.apache.org/jira/browse/LUCENE-1566?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael McCandless resolved LUCENE-1566.
----------------------------------------
Resolution: Fixed
Thanks Simon!
> Large Lucene index can hit false OOM due to Sun JRE issue
> ---------------------------------------------------------
>
> Key: LUCENE-1566
> URL: https://issues.apache.org/jira/browse/LUCENE-1566
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Affects Versions: 2.4.1
> Reporter: Michael McCandless
> Assignee: Simon Willnauer
> Priority: Minor
> Fix For: 2.9
>
> Attachments: LUCENE-1566.patch, LUCENE-1566.patch, LUCENE-1566.patch, LUCENE_1566_IndexInput.patch, LUCENE_1566_IndexInput_Changes.patch, LUCENE_1566_IndexInput_Changes.patch
>
>
> This is not a Lucene issue, but I want to open this so future google
> diggers can more easily find it.
> There's this nasty bug in Sun's JRE:
> http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6478546
> The gist seems to be, if you try to read a large (eg 200 MB) number of
> bytes during a single RandomAccessFile.read call, you can incorrectly
> hit OOM. Lucene does this, with norms, since we read in one byte per
> doc per field with norms, as a contiguous array of length maxDoc().
> The workaround was a custom patch to do large file reads as several
> smaller reads.
> Background here:
> http://www.nabble.com/problems-with-large-Lucene-index-td22347854.html
--
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: java-dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-dev-help@lucene.apache.org