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From "Simon Willnauer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-3216) Store DocValues per segment instead of per field
Date Mon, 27 Jun 2011 16:30:47 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-3216?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Simon Willnauer updated LUCENE-3216:
------------------------------------

    Attachment: LUCENE-3216.patch

next iteration, this time fixing most of the Byte variants to only write / open one file at
a time. Straight variants are still missing.

> Store DocValues per segment instead of per field
> ------------------------------------------------
>
>                 Key: LUCENE-3216
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3216
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: core/index
>    Affects Versions: 4.0
>            Reporter: Simon Willnauer
>            Assignee: Simon Willnauer
>             Fix For: 4.0
>
>         Attachments: LUCENE-3216.patch, LUCENE-3216_floats.patch
>
>
> currently we are storing docvalues per field which results in at least one file per field
that uses docvalues (or at most two per field per segment depending on the impl.). Yet, we
should try to by default pack docvalues into a single file if possible. To enable this we
need to hold all docvalues in memory during indexing and write them to disk once we flush
a segment. 

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