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https://issues.apache.org/jira/browse/LUCENE-1859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12748077#action_12748077
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Tim Smith commented on LUCENE-1859:
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bq. I would set this to minor and would not take care before 2.9.
i would agree with this
just reported the issue as it has the potential to cause memory issues (and
would think something should be done about it (in the long term at least))
also, the AttributeSource stuff does result in TermAttributeImpl being held
onto pretty much forever if using a reusableTokenStream (correct?)
was't a new Token() by the indexer for each doc/field in 2.4?, so the
unbounding would only last at most for the duration of indexing that one
document?
with Attribute caching in the TokenStream, the bounding lasts the duration of
the TokenStream now (or its underlaying AttributeSource), which could remain
until shutdown
> TermAttributeImpl's buffer will never "shrink" if it grows too big
> ------------------------------------------------------------------
>
> Key: LUCENE-1859
> URL: https://issues.apache.org/jira/browse/LUCENE-1859
> Project: Lucene - Java
> Issue Type: Bug
> Components: Analysis
> Affects Versions: 2.9
> Reporter: Tim Smith
> Priority: Minor
>
> This was also an issue with Token previously as well
> If a TermAttributeImpl is populated with a very long buffer, it will never be
> able to reclaim this memory
> Obviously, it can be argued that Tokenizer's should never emit "large"
> tokens, however it seems that the TermAttributeImpl should have a reasonable
> static "MAX_BUFFER_SIZE" such that if the term buffer grows bigger than this,
> it will shrink back down to this size once the next token smaller than
> MAX_BUFFER_SIZE is set
> I don't think i have actually encountered issues with this yet, however it
> seems like if you have multiple indexing threads, you could end up with a
> char[Integer.MAX_VALUE] per thread (in the very worst case scenario)
> perhaps growTermBuffer should have the logic to shrink if the buffer is
> currently larger than MAX_BUFFER_SIZE and it needs less than MAX_BUFFER_SIZE
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