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https://issues.apache.org/jira/browse/LUCENE-957?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12516123
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Murali Varadarajan commented on LUCENE-957:
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Doron Cohon,
Thanks a tonne. I tried your first patch and it didn't work. Today i saw your
message and checked out the source from head and built it.
It worked !!!
:-)
> Lucene RAM Directory doesn't work for Index Size > 8 GB
> -------------------------------------------------------
>
> Key: LUCENE-957
> URL: https://issues.apache.org/jira/browse/LUCENE-957
> Project: Lucene - Java
> Issue Type: Bug
> Components: Store
> Reporter: Doron Cohen
> Assignee: Doron Cohen
> Attachments: lucene-957.patch, lucene-957.patch
>
>
> from user list - http://www.gossamer-threads.com/lists/lucene/java-user/50982
> Problem seems to be casting issues in RAMInputStream.
> Line 90:
> bufferStart = BUFFER_SIZE * currentBufferIndex;
> both rhs are ints while lhs is long.
> so a very large product would first overflow MAX_INT, become negative, and
> only then (auto) casted to long, but this is too late.
> Line 91:
> bufferLength = (int) (length - bufferStart);
> both rhs are longs while lhs is int.
> so the (int) cast result may turn negative and the logic that follows would
> be wrong.
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