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https://issues.apache.org/jira/browse/LUCENE-2422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12862530#action_12862530
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Shai Erera commented on LUCENE-2422:
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Mike - this patch is against an old revision? I'm up to the latest and
IndexInput/Output don't include any field, just abstract methods. This seems to
be relevant to 3.0.1 (and before?) If so, where does this need to be fixed post
3.0.1?
> don't reuse byte[] in IndexInput/Output for read/writeString
> ------------------------------------------------------------
>
> Key: LUCENE-2422
> URL: https://issues.apache.org/jira/browse/LUCENE-2422
> Project: Lucene - Java
> Issue Type: Bug
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 2.9.3, 3.0.2, 3.1, 4.0.0
>
> Attachments: LUCENE-2422.patch
>
>
> IndexInput now holds a private "byte[] bytes", which it re-uses for reading
> strings. Likewise, IndexOutput holds a UTF8Result (which holds "byte[]
> bytes"), re-used for writing strings.
> These are both dangerous, since on reading or writing immense strings, we
> never free this storage.
> We don't use read/writeString in very perf sensitive parts of the code, so, I
> think we should not reuse the byte[] at all.
> I think this is likely the cause of the recent "IndexWriter and memory usage"
> thread, started by Ross Woolf on java-u...@.
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