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From "Adrien Grand (JIRA)" <>
Subject [jira] [Assigned] (LUCENE-5373) Lucene42DocValuesProducer.ramBytesUsed is over-estimated
Date Thu, 19 Dec 2013 19:36:07 GMT


Adrien Grand reassigned LUCENE-5373:

    Assignee: Adrien Grand

> Lucene42DocValuesProducer.ramBytesUsed is over-estimated
> --------------------------------------------------------
>                 Key: LUCENE-5373
>                 URL:
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Adrien Grand
>            Assignee: Adrien Grand
>            Priority: Minor
> Lucene42DocValuesProducer.ramBytesUsed uses {{RamUsageEstimator.sizeOf(this)}} to return
an estimation of the memory usage. One of the issues (there might be other ones) is that this
class has a reference to an IndexInput that might link to other data-structures that we wouldn't
want to take into account. For example, index inputs of a {{RAMDirectory}} all point to the
directory itself, so {{Lucene42DocValuesProducer.ramBytesUsed}} would return the amount of
memory used by the whole directory.

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