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https://issues.apache.org/jira/browse/NUTCH-1867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14159693#comment-14159693
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Sebastian Nagel commented on NUTCH-1867:
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> do we need to state on the conf property description that this is of type
> float? or is this not required?
The property is only used to pass the min score to the mapper. It is not listed
(and documented) in nutch-default.xml because setting it in a config file is
useless, it is always overwritten either by the command-line value or by 0.0
> CrawlDbReader: use setFloat to pass min score
> ---------------------------------------------
>
> Key: NUTCH-1867
> URL: https://issues.apache.org/jira/browse/NUTCH-1867
> Project: Nutch
> Issue Type: Improvement
> Components: crawldb
> Affects Versions: 1.9
> Reporter: Sebastian Nagel
> Priority: Trivial
> Fix For: 1.10
>
> Attachments: NUTCH-1867-v1.patch
>
>
> The float value "min" score in the CrawlDbTopNMapper is passed via property
> "db.reader.topn.min" as a long (multiplied by 1Mio.). The comment "no
> setFloat() in the API" is no longer valid, the method exists in
> [Configuration|https://hadoop.apache.org/docs/current/api/org/apache/hadoop/conf/Configuration.html|Configuration]
> and should be used. Reported by [~lewismc], see NUTCH-1857.
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