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From "Adrien Grand (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-7647) CompressingStoredFieldsFormat should reclaim memory more aggressively
Date Mon, 06 Feb 2017 12:38:41 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-7647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Adrien Grand updated LUCENE-7647:
---------------------------------
    Fix Version/s: 5.5.4

> CompressingStoredFieldsFormat should reclaim memory more aggressively
> ---------------------------------------------------------------------
>
>                 Key: LUCENE-7647
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7647
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Adrien Grand
>             Fix For: master (7.0), 5.5.4, 6.5, 6.4.1
>
>         Attachments: LUCENE-7647.patch
>
>
> When stored fields are configured with {{BEST_COMPRESSION}}, we rely on garbage collection
to reclaim Deflater/Inflater instances. However these classes use little JVM memory but may
use significant native memory, so if may happen that the OS runs out of native memory before
the JVM collects these unreachable Deflater/Inflater instances. We should look into reclaiming
native memory more aggressively.



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