[jira] [Updated] (LUCENE-6814) PatternTokenizer indefinitely holds heap equal to max document it has ever tokenized

["Michael McCandless (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-6814?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael McCandless updated LUCENE-6814:
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    Summary: PatternTokenizer indefinitely holds heap equal to max document it has ever tokenized  (was: PatternTokenizer should free heap after it's done)

> PatternTokenizer indefinitely holds heap equal to max document it has ever tokenized
> ------------------------------------------------------------------------------------
>
>                 Key: LUCENE-6814
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6814
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>             Fix For: Trunk, 5.4
>
>         Attachments: LUCENE-6814.patch, LUCENE-6814.patch
>
>
> Caught by Alex Chow in this Elasticsearch issue: https://github.com/elastic/elasticsearch/issues/13721
> Today, PatternTokenizer reuses a single StringBuilder, but it doesn't free its heap usage after tokenizing is done.  We can either stop reusing, or ask it to {{.trimToSize}} when we are done ...



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