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From "Simon Willnauer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2633) PackedInts does not support structures above 256MB
Date Wed, 08 Sep 2010 14:26:33 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12907228#action_12907228
] 

Simon Willnauer commented on LUCENE-2633:
-----------------------------------------

bq. +1, if the test is problematic, we can always either comment out the new test, or @Ignore
it, and add a note.

+1 - I thought about something like the Assume#assumeTrue(MAX_HEAP_MEM >= 256); (http://kentbeck.github.com/junit/javadoc/latest/org/junit/Assume.html#assumeTrue(boolean))
which could be set to a certain default value and would exclude the test if not enough memory
is available. That would prevent uncommenting the test - I guess @Ignore would work too but
maybe we want disable / enable at a central place for tests like that.


simon

> PackedInts does not support structures above 256MB
> --------------------------------------------------
>
>                 Key: LUCENE-2633
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2633
>             Project: Lucene - Java
>          Issue Type: Bug
>    Affects Versions: 4.0
>         Environment: All
>            Reporter: Toke Eskildsen
>         Attachments: LUCENE-2633.patch
>
>
> The PackedInts Packed32 and Packed64 fails when the internal structure exceeds 256MB.
This is due to a missing cast that results in the bit position calculation being limited by
Integer.MAX_VALUE (256MB * 8 = 2GB).

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