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From "Tom Burton-West (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-2393) Utility to output total term frequency and df from a lucene index
Date Tue, 27 Apr 2010 20:46:32 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-2393?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tom Burton-West updated LUCENE-2393:
------------------------------------

    Description: This is a pair of command line utilities that provide information on the
total number of occurrences of a term in a Lucene index.  The first  takes a field name, term,
and index directory and outputs the document frequency for the term and the total number of
occurrences of the term in the index (i.e. the sum of the tf of the term for each document).
  The second reads the index to determine the top N most frequent terms (by document frequency)
and then outputs a list of those terms along with  the document frequency and the total number
of occurrences of the term. Both utilities are useful for estimating the size of the term's
entry in the *prx files and consequent Disk I/O demands.   (was: This is a command line utility
that takes a field name, term, and index directory and outputs the document frequency for
the term and the total number of occurrences of the term in the index (i.e. the sum of the
tf of the term for each document).  It is useful for estimating the size of the term's entry
in the *prx files and consequent Disk I/O demands)

> Utility to output total term frequency and df from a lucene index
> -----------------------------------------------------------------
>
>                 Key: LUCENE-2393
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2393
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: contrib/*
>            Reporter: Tom Burton-West
>            Priority: Trivial
>         Attachments: LUCENE-2393.patch, LUCENE-2393.patch, LUCENE-2393.patch, LUCENE-2393.patch
>
>
> This is a pair of command line utilities that provide information on the total number
of occurrences of a term in a Lucene index.  The first  takes a field name, term, and index
directory and outputs the document frequency for the term and the total number of occurrences
of the term in the index (i.e. the sum of the tf of the term for each document).   The second
reads the index to determine the top N most frequent terms (by document frequency) and then
outputs a list of those terms along with  the document frequency and the total number of occurrences
of the term. Both utilities are useful for estimating the size of the term's entry in the
*prx files and consequent Disk I/O demands. 

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